Health Information & Coding · Independent exam preparation
BELS ELS Scientific Editing: Free Preparation Guide Study Guide
Practise precise scientific editing, data checks, author queries, and publication ethics across the five BELS ELS domains with worked cases and original drills.
By CertMedbry · Updated 29 October 2026
Learn to preserve scientific meaning while correcting language, checking numerical claims, improving organization, and resolving publication concerns. These 60 selected concepts develop decisions an editor can justify from context, evidence, and supplied instructions. The official BELS five-domain outline defines the full examination scope; this guide is a selective learning resource. Concepts, questions, and flashcards are distributed equally across the five domains as an editorial coverage choice, not official examination weighting. Practice includes passage editing, a table audit, graph-scale interpretation, and reference-to-model comparison.
Try 20 free practice questionsWhat is the exam format?
Check the question types, timing and outline before planning your revision.
How many questions are included, and how many are scored?
The currently linked Certification Study Guide specifies 105 multiple-choice questions, including 8 unscored questions evaluated for future examinations. That leaves 97 scored questions. Candidates are instructed to select the best answer.
How long is the examination?
BELS specifies 2 hours 45 minutes, equivalent to 165 minutes. Both the current About Us page and the linked study guide support this duration.
BELS — About Us · BELS Certification Study Guide — currently linked PDF
What delivery methods and scheduling information are verified?
The BELS About Us page describes examinations at Prometric testing centers worldwide during January, April, July, and October. The current Certification FAQ also describes the option of remote assessment. The linked guide additionally describes conference-based paper testing; its current availability requires confirmation through BELS scheduling information. Follow the current appointment instructions for the selected delivery method.
BELS — About Us · Certification FAQ · BELS Certification Study Guide — currently linked PDF
What item styles and navigation features does BELS describe?
The examination uses best-answer multiple-choice questions. The guide illustrates passage-based and graphical material as well as standalone questions, and states that candidates can return to earlier questions. The supplied evidence does not establish computer-adaptive delivery. The 20 questions here are independent four-option learning drills, not a reproduction of the examination interface or a pass predictor.
Which blueprint and effective dates apply?
The official Study Guide page linked to BELS Study Guide Final 2020.pdf when checked October 29, 2026. That document identifies the five domains used here but states neither domain percentage weights nor an explicit revision or effective date. The filename does not establish a 2026 syllabus. The ethics code's July 15, 2026 approval is a separate policy date, not a demonstrated blueprint effective date.
BELS — Study Guide · BELS Certification Study Guide — currently linked PDF · BELS Code of Ethics
What scoring and fee information can candidates rely on here?
The linked guide describes pass–fail reporting and scoring by the number of correct answers. The current Certification FAQ instead describes weighted questions, states a 70% passing percentage, and says no fixed number of correct answers can be specified. These descriptions do not establish a reconciled scoring formula or raw passing count. Use current BELS registration and examination instructions for applicable scoring information and fees; historical charges should not be treated as current.
BELS Certification Study Guide — currently linked PDF · Certification FAQ
Does preparation require memorizing one style manual or performing advanced calculations?
The guide says the examination assesses application of supplied style guidance rather than knowledge of one particular manual. It tests accurate numerical and statistical presentation without requiring mathematical or statistical expertise, and explicitly says candidates will not be asked to convert to SI units. Preparation should emphasize applying instructions, recognizing inconsistencies, and preserving meaning.
How does ELS differ from the other BELS designations?
Passing the certification examination permits use of ELS. Distinguished Editor, ELS(D), evaluates more experienced certified editors through portfolio review; the linked guide uses the earlier diplomate terminology for that advanced level. Honored Editor, ELS(H), is a designation bestowed for a distinguished career. This guide follows the examination pathway leading to ELS.
BELS — About Us · BELS Certification Study Guide — currently linked PDF
This independently authored guide prepares for the BELS certification examination leading to Editor in the Life Sciences (ELS). Distinguished Editor, ELS(D), uses a separate portfolio review; the older guide's diplomate terminology refers to that advanced pathway. ELS assesses scientific editing in English, rather than clinical licensure or medical coding.
Outline used: Certification Study Guide currently linked from BELS's official Study Guide page, verified on 2026-10-11. Its filename includes 'Final 2020', but the document does not state an explicit revision or effective date. It identifies five content domains without percentage weights. The workbook label names the ELS credential earned by passing the BELS certification examination; the assigned slug is preserved.
60 key concepts: understand, apply and avoid the traps
Work through the questions by exam domain. Explain the answer in your own words, try the example, then check the common pitfall.
Mechanicsnot stated
1.How does the grammatical subject control verb agreement?
A verb agrees with the grammatical head of its subject, not with a nearby noun inside a prepositional phrase. In “The collection of samples is complete,” collection controls is; samples does not. First isolate the subject and verb, then temporarily remove intervening material. This method is especially useful in scientific sentences containing long descriptions of specimens, measurements, or subgroups, where proximity can conceal the actual agreement relationship.
Apply it
A methods section reads, “The distribution of particle sizes were recorded.” Identify distribution as the singular subject head and change were to was. Leave particle sizes plural because it describes what was distributed.
Common pitfall: Choosing the verb that matches the nearest noun feels natural, but it can produce an agreement error when that noun belongs to a modifying phrase.
2.Which agreement rule applies to each, either, and coordinated subjects?
Each and either used as subjects normally take singular verbs, even when followed by plural nouns. Subjects joined by and generally take a plural verb. With subjects joined by or or nor, agreement follows the nearer subject when singular and plural forms differ. Identify the construction before editing: “Each of the slides is labeled” differs structurally from “The slide and its label are missing.” Recasting can remove awkward mixed-number coordination.
Apply it
A report states, “Each of the three observers have signed.” Change have to has. In a separate sentence, replace an awkward mixed-number or construction with two clauses if agreement distracts from the intended message.
Common pitfall: Plural nouns after each do not make the subject plural. Conversely, applying a singular verb automatically to every coordinated subject ignores how the subjects are joined.
3.How can sentence structure resolve pronoun case?
Pronoun case depends on grammatical function. Subject forms such as she and I serve as clause subjects; object forms such as him and me serve as objects of verbs or prepositions. In “She examined him,” she is the subject and him is the verb's object. In “She was examined by him,” she remains the subject form despite receiving the action, and him is the object of by. Coordination can obscure function: temporarily remove the other coordinated noun to test the remaining pronoun. See Purdue OWL's pronoun-case guidance: https://owl.purdue.edu/owl/general_writing/grammar/pronouns/pronoun_case.html.
Apply it
An acknowledgment says, “The coordinator sent the files to Rina and I.” Remove Rina and mentally test “to I.” Restore the phrase as “to Rina and me,” preserving the intended recipients without changing emphasis.
Common pitfall: Receiving an action does not make a pronoun a grammatical object in a passive clause. Naming another person alongside a pronoun also does not justify replacing me with I or myself.
4.When do commas change the meaning of a relative clause?
An essential relative clause identifies which members of a group are meant and is not set off by commas. A supplementary clause adds information about an already identified referent and is enclosed by commas. The decision depends on meaning, not sentence length or where a reader might pause. Compare a subset of containers that leaked with a previously identified set of containers, all of which leaked. If context cannot distinguish these meanings, query the author.
Apply it
A laboratory has ten trays, but only three are cracked. In “The trays that were cracked were discarded,” retain the essential clause without commas because it identifies the three discarded trays rather than all ten.
Common pitfall: Adding commas merely because a clause is long can convert a statement about a subset into a statement about an entire group of objects.
5.How should independent clauses be joined?
Independent clauses each contain a subject and predicate and can stand as sentences. Join them with a period, a semicolon when closely related, or a comma plus a coordinating conjunction. A conjunctive adverb such as however does not by itself join independent clauses after a comma. Test each side separately before choosing punctuation. Preserve the intended relationship: punctuation can connect statements, but it cannot supply an unsupported causal or contrastive meaning.
Apply it
The sentence reads, “The sensor passed calibration, however, the recording failed.” Both clauses stand independently. Revise to “The sensor passed calibration; however, the recording failed,” retaining the author's contrast while correcting the clause boundary.
Common pitfall: A long pause does not justify a comma splice. Adding however after a comma leaves the original joining problem unresolved between two independent clauses.
Purdue OWL — Extended Rules for Using Commas · BELS Certification Study Guide — currently linked PDF
6.How do colons and semicolons clarify complex lists?
A colon can introduce a list after a complete introductory clause. It should not ordinarily separate a verb or preposition from its grammatical complement. Semicolons distinguish list items that already contain internal commas, making the grouping visible. First identify the boundaries of the actual items, then select punctuation that preserves those boundaries. Publisher instructions may specify list presentation, but punctuation still needs to show how each component belongs to the sentence.
Apply it
A report lists three sites, each followed by a city and country. Use semicolons between the site entries and commas within each location. Introduce them with “The participating sites were as follows:” rather than separating were from its complement.
Common pitfall: Automatically placing a colon before every list can break sentence grammar. Using commas at every level can make the number and boundaries of items unclear.
7.When should a compound modifier follow supplied hyphenation instructions?
Compound modifiers can need hyphens to show which words work together before a noun. Their treatment also depends on established terminology and the supplied style. Start by identifying the intended grouping, then apply the document's rule consistently. A hyphen can distinguish “small-animal imaging” from an imaging procedure that is small. Do not impose a remembered house style when explicit project instructions govern the construction, and query wording whose grouping remains scientifically uncertain.
Apply it
Project instructions require hyphens in temporary compound modifiers before nouns. Revise “a two stage analysis” to “a two-stage analysis.” Check comparable occurrences, while leaving an established technical term unchanged if the instructions specifically exempt it.
Common pitfall: Hyphenating every adjacent pair of descriptive words can create false groupings. Ignoring an explicit exception can also make an otherwise consistent manuscript violate its instructions.
8.How should capitalization and spelling variants be standardized?
Capitalization and spelling require a hierarchy of decisions: preserve proper names and scientifically meaningful forms, then apply the supplied journal or project convention to ordinary words. Consistency is valuable only when the chosen form is appropriate. A brand name, geographic name, and generic method label may require different treatment despite similar appearance. Record recurring decisions in a style sheet so later corrections remain consistent without erasing distinctions established by nomenclature or context.
Apply it
A journal requests US spelling and sentence-case headings. Standardize ordinary occurrences of labelled to labeled and adjust heading capitals. Preserve the verified spelling and capitalization of a named institution even if its wording follows another national convention.
Common pitfall: Global replacement can alter proper names or technical symbols. A preferred spelling convention does not authorize changing every visually similar string throughout a scientific document.
9.How can plurals be distinguished from possessives?
A plural indicates more than one entity; a possessive shows a relationship such as ownership or association. Determine the intended meaning before inserting an apostrophe. “Researchers' records” refers to records associated with multiple researchers, whereas “researchers recorded” needs no apostrophe. Scientific nouns may have irregular or discipline-specific plurals, so verify unfamiliar forms against the supplied convention or an appropriate reference. Surface consistency cannot replace checking the underlying grammatical number and relationship.
Apply it
A heading says “Technician's assessments” above ratings from six technicians. If the heading means assessments by all six, change it to “Technicians' assessments.” If it means assessments of technicians, recast the heading to make that relationship explicit.
Common pitfall: An apostrophe is not a general marker of plurality. Correct-looking punctuation can still misstate whether the document concerns one contributor or several different contributors.
10.How should commonly confused words be resolved?
Choose a word by its function and meaning in the sentence, rather than by how familiar it looks. Scientific editing requires distinguishing related expressions such as comprise, compose, imply, and infer. Identify the relationship being asserted: observations may imply an explanation, while a reader infers it. If alternative words would produce different scientific claims, the decision requires contextual evidence or an author query. A grammatically possible replacement can still reverse the intended relationship.
Apply it
A discussion says, “Readers may imply from these findings that transport increased.” Readers draw an inference, so revise imply to infer. Separately check whether the findings actually support that interpretation before retaining the rest of the sentence.
Common pitfall: A spellchecker can accept a correctly spelled word used with the wrong meaning. Replacing it mechanically may still leave an unsupported scientific interpretation in place.
11.Why must scientific nomenclature preserve meaningful distinctions?
Scientific names and symbols can distinguish entities through capitalization and italics. Identify the organism, the entity being discussed, and the governing convention before editing. For human nomenclature, HGNC recommends italic symbols for genes and nonitalic symbols for their protein products. Thus the human gene symbol is *BRAF*, whereas its protein product is BRAF in roman type. This typographic distinction identifies the entity; it is not decorative emphasis. Apply supplied journal requirements and resolve any conflict explicitly. HGNC explains the convention at https://www.genenames.org/help/faq/.
Apply it
A human-cell study discusses a DNA variant in the BRAF gene and separately measures the BRAF protein by immunoblotting. Under HGNC convention, italicize *BRAF* in the gene reference and use nonitalic BRAF for the protein. Record both treatments in the style sheet and check the journal's instructions before applying them throughout.
Common pitfall: Making every occurrence of BRAF typographically identical can erase the gene–protein distinction. Human conventions also should not be transferred automatically to another organism's nomenclature.
12.When should abbreviations be defined or removed?
An abbreviation helps when it reduces repeated, cumbersome wording without imposing excessive decoding effort. Define nonstandard abbreviations at first use according to journal instructions, use one form consistently, and avoid creating abbreviations for terms used only once or twice. Abstracts and displays may require their own definitions because readers encounter them independently. Standard measurement symbols differ from locally invented abbreviations and should follow their established conventions rather than being expanded indiscriminately in every occurrence.
Apply it
An article introduces “surface recovery index (SRI)” but never uses SRI again. Remove the unused abbreviation. A table containing another nonstandard abbreviation needs an explanatory note even though the term was already defined in the main text.
Common pitfall: Defining an abbreviation once somewhere in the manuscript does not necessarily make an independently read abstract, table, or figure understandable to its intended readers.
ICMJE — Preparing a Manuscript for Submission to a Medical Journal
Syntax, clarity, and organizationnot stated
13.How can a dangling introductory modifier be repaired?
A subject-oriented introductory participial phrase must logically describe the main-clause subject. With an active phrase, that subject performs the action; with a passive phrase, it undergoes the action. A modifier dangles when its implied subject does not match the main-clause subject. Repair the attachment by making the logical referent the main-clause subject or by rewriting the introductory material as a clause with its own explicit subject. Preserve the intended actors and sequence of events.
Apply it
In “After inspecting the images, three artifacts were excluded,” the artifacts cannot be the inspectors. If reviewers performed both actions, revise to “After inspecting the images, the reviewers excluded three artifacts.” Alternatively, “After the reviewers inspected the images, three artifacts were excluded” identifies the inspectors while leaving the excluders unspecified. Compare the grammatical passive modifier in “Labeled by the technician, the tubes were placed on a rack”: the tubes undergo labeling, so the introductory phrase correctly describes the main-clause subject.
Common pitfall: Do not require every modified subject to perform an action. Passive participial phrases describe recipients of actions. The voice of the main clause alone does not determine whether a modifier dangles; check the logical relationship between the introductory phrase and the main-clause subject.
14.How does parallel structure clarify coordinated ideas?
Parallel structure presents coordinated ideas in matching grammatical forms, such as three infinitives, three noun phrases, or three clauses. Matching structure helps readers recognize equivalent functions and compare items without mentally rebuilding the sentence. First determine whether the ideas truly are equivalent, then align their syntax. Parallelism should not flatten a distinction between an objective, an action, and a result; those relationships may require separate sentences or a differently organized list.
Apply it
A protocol's aims are “to estimate drift, measuring variation, and comparison of instruments.” Revise to “to estimate drift, measure variation, and compare instruments,” keeping all three aims as coordinated verbs governed by the initial to.
Common pitfall: Matching word endings alone does not guarantee parallel meaning. Items can look similar while mixing an experimental procedure with an outcome or interpretive conclusion.
15.When should an ambiguous pronoun be replaced with a noun?
A pronoun is clear when readers can identify its referent without choosing between plausible alternatives. Agreement in number is necessary but insufficient: two singular instruments can both match it. Replace the pronoun with a precise noun when ambiguity affects the scientific claim, and query when the intended referent cannot be established. Repetition is preferable to false precision or confusion. Demonstratives such as this often become clearer when followed by a noun identifying the relevant finding.
Apply it
A report states, “The probe contacted the holder after it shifted.” Either object could have shifted. Ask which component moved, then name that component explicitly rather than selecting the nearest noun as the presumed referent.
Common pitfall: The nearest preceding noun is only a possible referent, not proof of intended meaning. Elegant variation can worsen ambiguity when several technical objects are involved.
16.How does modifier placement control the scope of a claim?
Words such as only, nearly, and almost restrict the expression they modify. Moving them can alter what was measured, who performed an action, or how completely something occurred. Place a limiting modifier beside its intended target and test alternative readings. “Only technicians measured temperature” limits the personnel; “Technicians measured only temperature” limits the measurement. When the surrounding text does not establish the intended scope, request clarification instead of choosing the smoother sentence.
Apply it
The sentence “We only analyzed samples from the northern site” could limit the action or the sample source. If the intended restriction concerns location, revise to “We analyzed samples only from the northern site,” after confirming that meaning.
Common pitfall: A small word moved for rhythm can change the study's inclusion boundary. Apparent stylistic cleanup may therefore require author confirmation about the intended claim.
17.When does removing nominalization improve clarity?
Nominalization turns an action or quality into a noun, often requiring a weak verb and additional prepositions. Replacing “performed an evaluation of” with evaluated can make the actor and action easier to identify. However, some nominalizations name established concepts or appropriately emphasize a process. Judge the sentence's purpose before shortening it. A useful revision removes unnecessary grammatical packaging while preserving technical meaning, qualifications, and the relationships among the study's actions and objects.
Apply it
A procedure states, “The team conducted an examination of the filters.” Revise to “The team examined the filters.” Retain a named technical process elsewhere if shortening it would replace an established concept with a less precise ordinary verb.
Common pitfall: Treating every noun derived from a verb as an error can damage technical terminology. Concision is valuable when it preserves the intended scientific concept.
18.How can editing preserve uncertainty and causal limits?
Scientific qualifiers communicate the strength and boundaries of evidence. May, suggests, associated with, and caused by do not make interchangeable claims. Before shortening a sentence, identify its level of certainty and whether it describes observation, inference, or causation. Preserve warranted qualification and question conclusions that exceed the methods or results. Removing redundant hedging can improve clarity, but strengthening the main claim requires scientific support rather than an editor's preference for decisive prose.
Apply it
An observational report says that higher exposure “was associated with” lower growth. A proposed edit changes this to “reduced growth.” Retain the association wording unless the authors provide a justified causal analysis supporting the stronger statement.
Common pitfall: Stronger verbs may sound clearer while overstating the evidence. Conversely, adding repeated hedges can obscure a well-supported result without making its limitations more accurate.
ICMJE — Preparing a Manuscript for Submission to a Medical Journal
19.How should comparisons identify equivalent things?
A valid comparison identifies both the property being compared and the corresponding comparison group. “The diameter of group X exceeded group Y” incorrectly compares a diameter with a group. Restore the omitted property or recast the sentence so equivalent entities are compared. Check whether than, compared with, and similar wording leave the comparison implicit. If the reference condition is missing, grammatical repair alone cannot establish which scientific contrast the author intended to report.
Apply it
A results sentence reads, “The conductivity of material R was greater than material S.” Revise to “Material R had greater conductivity than material S,” preserving the property comparison without implying that conductivity can be compared directly with a material.
Common pitfall: Readers may reconstruct an incomplete comparison, but different reconstructions can imply different baselines. Supply omitted wording only when the intended comparison is established by context.
20.How does paragraph order support a coherent argument?
A coherent paragraph develops one controlling idea through an intelligible sequence, such as context, evidence, interpretation, and limitation. Readers should understand what each sentence contributes and why it follows the previous one. Move a sentence when its current position interrupts that progression, but verify that references and qualifiers still attach correctly. A topic sentence can orient the reader; it cannot compensate for missing evidence or for unrelated claims that belong in another paragraph.
Apply it
A paragraph begins with a limitation, jumps to a result, defines the measurement, and then interprets the result. Place the definition before the result and position the limitation after the interpretation if that sequence preserves the author's intended argument.
Common pitfall: Chronological order is not always the best explanatory order. Reorganization also becomes substantive when it changes which evidence appears to support a particular conclusion.
21.When is a transition logically justified?
Transitions explicitly label relationships between ideas. Therefore signals an inference, however signals a contrast, and additionally signals an extension. Choose the relationship from the evidence before choosing the word. Two sequential events do not automatically establish causation, and two different observations do not necessarily contradict each other. If no logical relationship is established, a simple new sentence may be more accurate than an emphatic transition that invents one for the sake of flow.
Apply it
A manuscript says, “The chamber temperature increased. Therefore, the detector required recalibration.” The text supplies no causal explanation. Query the claimed connection or use a neutral sequence if the author confirms only that both events occurred.
Common pitfall: A transition can make prose sound connected while introducing unsupported reasoning. Replacing one connector with another still requires checking the relationship between the claims.
22.Which material belongs in each conventional research article section?
In a conventional research article, the Introduction establishes the problem and objective, Methods explains how the work was performed, Results reports findings, and Discussion interprets them in context. This structure helps readers separate procedures, observations, and interpretations. Journal instructions and article type can require other arrangements, so use the applicable format rather than imposing one universally. Moving content should improve that distinction without concealing methodological changes or converting an interpretation into an observed result.
Apply it
A Results paragraph explains why a new calibration procedure was selected before any findings appear. Move the procedural explanation to Methods if the journal uses conventional sections, and retain any actual calibration results in Results.
Common pitfall: Not every article follows the same section structure. A narrative review, brief report, or journal-specific combined section may legitimately organize information differently from a conventional research article.
ICMJE — Preparing a Manuscript for Submission to a Medical Journal
23.How should an abstract remain consistent with the article?
An abstract should accurately summarize the study's purpose, methods, principal findings, and conclusions within the journal's required format. It must not introduce results absent from the article or present a stronger interpretation than the full report supports. Compare important numbers, participant counts, outcomes, and qualifiers across both versions. Because abstracts often stand alone, define necessary nonstandard abbreviations there and preserve essential limitations even when space pressure encourages compression or more promotional wording.
Apply it
The abstract reports an improvement in all samples, whereas the Results section limits the finding to one subgroup. Query the discrepancy and align the abstract with the verified result, retaining the subgroup boundary in the shortened account.
Common pitfall: An abstract is not merely advertising for the paper. Space limits do not justify removing the condition that determines which participants or samples the conclusion concerns.
ICMJE — Preparing a Manuscript for Submission to a Medical Journal
24.How can a list reveal the logic of a procedure?
A list makes relationships visible when each item represents the same logical level. Numbering can signal a sequence, while bullets can present unordered alternatives or components. Keep introductory wording compatible with every item and use parallel grammar. Separate mandatory actions from optional branches rather than presenting them as equivalent steps. A well-designed list reduces memory demands, but its structure must preserve the procedure's dependencies and conditions rather than merely break a dense paragraph into fragments.
Apply it
A protocol combines three required preparation actions with an optional quality check in one numbered sequence. Keep the required actions ordered and mark the quality check as conditional, identifying the condition under which it must be performed.
Common pitfall: Numbering can imply an order that the author never intended. Bullets can hide dependencies when a later action cannot occur until an earlier step is completed.
Purdue OWL — Parallel Structure · BELS Certification Study Guide — currently linked PDF
Numbers, measures, statistics, and displays of informationnot stated
25.Why must every percentage have an identifiable denominator?
A percentage expresses a numerator relative to a defined denominator. Its meaning depends on who or what was eligible, observed, and included at that time point. Report absolute counts alongside percentages when useful, and verify that the denominator matches the stated population. Missing observations or subgroup restrictions can change it. Recalculating a percentage is an arithmetic check; deciding which population belongs in the denominator may require methodological clarification from the authors.
Apply it
A study enrolls 90 participants, but 72 provide follow-up data and 18 report an event. If the result concerns respondents, report 18 of 72, or 25%, and identify the missing follow-up observations separately.
Common pitfall: Using the enrollment total for every percentage can understate a respondent-based proportion. A mathematically correct calculation still misleads when its population is mislabeled or unexplained.
ICMJE — Preparing a Manuscript for Submission to a Medical Journal
26.How do percentage points differ from relative percentage change?
A percentage-point difference subtracts one percentage from another. Relative percentage change divides that difference by the baseline percentage and multiplies by 100. These describe different aspects of a change and should be labeled explicitly. Moving from 20% to 30% is an increase of 10 percentage points and a relative increase of 50%. Check that the baseline is identified and that the wording does not confuse a difference in proportions with a proportional change.
Apply it
An acceptance rate rises from 40% to 50%. Revise “a 10% relative increase” to either “a 10-percentage-point increase” or “a 25% relative increase,” choosing the expression that matches the author's intended comparison.
Common pitfall: Subtracting percentages gives a percentage-point difference, not automatically a relative percentage change. The same numerical increase can have different relative sizes at different baselines.
27.When can subgroup percentages be combined?
An overall proportion is obtained from the combined numerator divided by the combined denominator when the groups are appropriate to pool. Simply averaging subgroup percentages gives each group equal weight regardless of size and usually answers a different question. Reconstruct counts where available, check that categories are compatible and nonoverlapping, and identify any missing data. Pooling is a scientific as well as arithmetic decision; the editor should not merge groups whose definitions or measurement conditions differ.
Apply it
One site records 9 successes among 10 observations and another records 10 among 100. The pooled proportion is 19 of 110, about 17.3%, rather than the unweighted average of 90% and 10%, which is 50%.
Common pitfall: Averaging displayed percentages is tempting because the calculation is easy. It can greatly misrepresent the overall proportion when subgroup denominators differ substantially in size.
28.How should rounding reflect precision without inventing accuracy?
Displayed precision should suit the measurement, analysis, and journal instructions. Extra decimal places do not create information and can suggest unsupported accuracy. Preserve sufficient precision during calculation, then round the final reported value according to the applicable convention. Check consistency across text and displays while allowing justified differences in purpose. Rounded percentages may not sum to exactly 100%; that alone does not prove an error or authorize changing individual values to force a total.
Apply it
Three equal categories are each displayed as 33.3%, totaling 99.9%. Retain the correctly rounded values and add a rounding note if needed. Do not increase one category to 33.4% unless a stated allocation convention requires it.
Common pitfall: Forcing rounded entries to sum exactly can alter valid values. Conversely, retaining every calculator digit can imply a level of measurement precision that the study lacks.
NIST Guide to the SI, Chapter 7 — Expressing Values of Quantities · ICMJE — Preparing a Manuscript for Submission to a Medical Journal
29.How should a numerical value and its SI unit be written?
A quantity value combines a number with a unit, and clear notation keeps those components distinct. NIST generally places a space between the numerical value and unit symbol, including before °C; plane-angle degree, minute, and second symbols are exceptions. Unit symbols retain their established form rather than taking ordinary plural endings. Make the unit's application unambiguous in ranges, products, and compound expressions, following supplied instructions without changing the underlying physical quantity.
Apply it
A report gives a chamber temperature as 24°C and a sample mass as 6 kgs. Under NIST SI conventions, edit these to 24 °C and 6 kg, checking that the numerical values themselves remain unchanged.
Common pitfall: Applying ordinary word-plural rules to unit symbols creates incorrect forms. Removing spaces everywhere around degree symbols also overlooks the distinction between temperature and plane-angle notation.
NIST Guide to the SI, Chapter 7 — Expressing Values of Quantities
30.How can units expose an improbable reported value?
A value is interpretable only with the quantity and unit attached. Check whether the unit measures the stated property and whether prefixes, table headings, and text agree. A large discrepancy may reflect a transcription error, unit mismatch, or genuine finding; plausibility is a cue to investigate, not permission to replace the number. Compare related descriptions and ask a focused question when the intended value cannot be established from authoritative manuscript information.
Apply it
A specimen mass appears as 4 mg in Methods and 4 g in a table describing the same specimen. Flag the thousandfold unit discrepancy and request the verified mass rather than selecting the value that looks more plausible.
Common pitfall: Scientific plausibility does not identify the correct replacement. A surprising value can be real, while an ordinary-looking value can still contain a consequential unit error.
31.How do parentheses preserve an equation's meaning?
A fraction bar groups its entire numerator and denominator. When converting a displayed fraction into a single-line expression, parentheses must preserve those groups and the order of operations. Multiplication and division otherwise precede addition and subtraction, so removing grouping can change the result. Test a rewritten expression using simple values if necessary. Also verify that variable definitions and units remain attached to the same mathematical relationships after formatting changes or equation reflow.
Apply it
A displayed fraction has numerator x + y and denominator z − 1. Its linear form is (x + y)/(z − 1). With x = 2, y = 4, and z = 3, the value remains 3.
Common pitfall: Replacing a fraction bar with a slash without parentheses can change both numerator and denominator. A visually compact equation may therefore express a different calculation.
NIST Guide to the SI, Chapter 7 — Expressing Values of Quantities · BELS Certification Study Guide — currently linked PDF
32.Why must SD, SE, and confidence intervals be identified?
Standard deviation describes the spread of observations, whereas standard error describes the sampling variability of an estimate. A confidence interval presents uncertainty about an estimated parameter under the analysis's assumptions. These quantities answer different questions and cannot be substituted merely to shorten a label. Require tables and legends to identify the summary and uncertainty measure explicitly. An unlabeled “mean ± value” is insufficient because readers cannot determine whether it describes sample dispersion or estimate precision.
Apply it
A graph legend reports “mean ± error” without defining error. Ask whether the bars show SD, SE, or a specified confidence interval, then label them accordingly. Do not infer the measure from how narrow the bars appear.
Common pitfall: Small error bars do not prove that observations were tightly clustered. They may represent estimate precision rather than the variability among the individual observations.
ICMJE — Preparing a Manuscript for Submission to a Medical Journal
33.How should effect size, uncertainty, and P values be distinguished?
An effect estimate describes the size and direction of a difference or association; its uncertainty describes precision. A P value concerns compatibility with a specified statistical model and does not itself measure effect magnitude or practical importance. Scientific reporting should let readers assess these dimensions separately. Query an unsupported claim of statistical significance and seek the relevant analysis or result. Do not invent a threshold, infer importance from significance, or interpret nonsignificance as proof of equivalence.
Apply it
A paper calls a tiny difference “important” solely because its P value is small. Request the effect estimate and uncertainty, and ask the authors to justify practical importance using the study's context rather than statistical significance alone.
Common pitfall: A statistically detectable difference can be practically small. A nonsignificant result can also remain compatible with meaningful effects when the estimate is too imprecise.
ICMJE — Preparing a Manuscript for Submission to a Medical Journal
34.What makes a table independently interpretable?
A useful table identifies its population, variables, units, summary measures, and relevant denominators without forcing readers to reconstruct them from scattered prose. Clear row and column headings establish what each cell means; notes define abbreviations and statistical symbols. Align precision where comparisons require it and distinguish missing observations from genuine zeros. Check totals and cross-references against the text. Independent interpretability does not require repeating the entire methods section in the table's title or notes.
Apply it
A table lists “12 (30)” under an unexplained heading. Revise the heading or note to identify whether entries are counts with percentages, and specify the denominator. Add a separate definition for any symbol marking unavailable observations.
Common pitfall: A blank, zero, and not-applicable symbol communicate different states. Treating them interchangeably can change the apparent sample size or imply observations that were never made.
ICMJE — Preparing a Manuscript for Submission to a Medical Journal
35.How do axis scales change a graph's interpretation?
An axis must identify the variable, unit, and scale so readers can interpret position and distance correctly. Equal distances on a linear axis represent equal differences; equal distances on a logarithmic axis represent equal ratios. A truncated axis can magnify apparent differences, especially in bar charts whose lengths encode magnitude. Inspect labels, tick progression, legends, and scale changes. The appropriate scale depends on the data and purpose, but its presentation must make the mapping transparent.
Apply it
A graph places 1, 10, 100, and 1000 at equal vertical intervals. Identify the axis as logarithmic and ensure the label or legend makes that clear. Do not relabel those positions as equally spaced arithmetic values.
Common pitfall: Equal spacing on the page does not imply equal numerical differences. Correctly reading a curve requires checking the axis scale before interpreting apparent growth rates.
36.Which display best serves the reader's task?
Choose a display according to the relationship readers need to see. Tables support retrieval of exact values; graphs can reveal trends, distributions, or comparisons more quickly. A line connecting observations implies an ordered relationship and should not casually join unrelated categories. Avoid duplicating every value across text, table, and figure without a purpose. Text should highlight the principal finding, while the selected display provides the supporting detail and makes its measurement structure clear.
Apply it
A manuscript presents monthly instrument drift in a dense table and repeats every value in prose. Recommend a time-based line graph if the trend is central, retain a table only if exact values are needed, and shorten the prose.
Common pitfall: A visually attractive graph can encode the wrong relationship. Connecting unrelated categories with a line suggests continuity or order that the underlying variable does not possess.
ICMJE — Preparing a Manuscript for Submission to a Medical Journal · BELS Certification Study Guide — currently linked PDF
Editorial knowledge and judgmentnot stated
37.How should editing change for a different audience?
Audience determines what background knowledge can be assumed, which terms need explanation, and what information should be emphasized. Preserve the scientific content while adjusting vocabulary, organization, and explanatory detail. A specialist may need methodological precision, whereas a public audience may first need the purpose and practical meaning. Avoid replacing a technical term with an inaccurate everyday synonym. Instead, define the term or explain the relationship that readers need in order to understand the claim.
Apply it
A public summary repeatedly uses a specialized assay name without explanation. Introduce its purpose in plain language before naming it, retain the technical name where useful, and explain what its result can and cannot establish.
Common pitfall: Simplification should reduce decoding effort without overstating certainty or removing essential conditions. An accessible explanation can still preserve technical boundaries and important qualifications.
38.How should stakeholder requests be reconciled with editorial scope?
An editing brief defines the intended audience, deliverable, authority, and depth of intervention. Stakeholders may prioritize readability, speed, promotion, or methodological detail, but these preferences do not justify inaccurate statements. Identify conflicting requests early and distinguish corrections within scope from recommendations needing approval. When a requested change affects the scientific claim, explain its consequence concretely. A documented decision helps preserve accountability when authors, sponsors, and publishers have different expectations for the same text.
Apply it
A sponsor requests removal of a limitation because it weakens the summary. Explain how that deletion would broaden the claim beyond the reported evidence and propose a concise limitation that preserves accuracy while meeting the length requirement.
Common pitfall: A stakeholder's authority over presentation does not establish scientific support. Quietly making a requested substantive change can leave the author responsible for a claim they never approved.
BELS Certification Study Guide — currently linked PDF · BELS Code of Ethics
39.What makes an author query effective?
An effective query identifies the exact problem, explains why it matters, and requests a specific decision or missing fact. Use neutral language and provide a proposed revision when it can clarify the options without presuming the answer. Avoid vague requests to check a whole section when one discrepancy can be named. Combine related issues when useful, but keep independent decisions distinguishable so the author's response can be implemented without guessing which change was approved.
Apply it
Text reports 46 specimens, while the corresponding table reports 49. Ask, “The Results text gives 46 specimens and Table 2 gives 49 for this analysis. Please confirm the correct denominator and identify any exclusions that explain the difference.”
Common pitfall: “Please check” transfers the investigation without identifying the issue. A leading query can be equally weak when it presents an unverified replacement as already correct.
40.When is a silent correction appropriate?
A silent correction is appropriate when the error and intended meaning are clear, the change lies within the agreed scope, and no scientific judgment is required. Correcting an ordinary misspelling differs from changing a sample size, endpoint, or interpretation. Query changes with multiple plausible meanings or substantive consequences. The distinction depends on certainty and impact, not merely the number of characters edited: changing one digit can matter more than rewriting an entire awkward sentence.
Apply it
Correct a repeated ordinary typo in a section heading under the agreed copyediting brief. Query a reported incubation interval that conflicts with the protocol, because either value could be intentional and the choice affects reproducibility.
Common pitfall: A correction that seems obvious from general knowledge can still be wrong for this study. Low character count does not make a substantive edit routine.
BELS Certification Study Guide — currently linked PDF · BELS Code of Ethics
41.How should conflicting data across a manuscript be resolved?
Internal inconsistency establishes that a check is needed, but it does not identify which version is correct. Compare definitions, populations, time points, and rounding before treating different values as contradictory. If they describe the same quantity and remain inconsistent, ask the author to identify the authoritative result and update all dependent locations. Maintain a record of the resolution so the abstract, text, tables, and figures reflect the same approved information after revision.
Apply it
An abstract reports a median of 14, while the Results section reports 16. Confirm that both concern the same analysis population and time point, then request the verified value and check every location that repeats it.
Common pitfall: The table is not automatically more authoritative than the prose, and the most frequently repeated value may simply be the most widely copied error.
42.Which reference components establish a source's identity?
A reference must contain enough accurate information to identify and locate the cited work in the required format. Journal article references commonly include authors, article title, journal, date, and appropriate volume, page range, or electronic locator information. Required components vary by source type. Check completeness against the applicable model rather than forcing every source into a print-article pattern. An electronic article number can be correct even when no conventional page range exists.
Apply it
A reference lists authors, title, and year but omits the journal and article locator. Request the missing identifying details. Do not invent a page range for an electronic-only article that legitimately uses an article number.
Common pitfall: A reference can look polished while remaining untraceable. Conversely, absence of traditional page numbers does not itself establish incompleteness for an electronically published article.
NLM — Samples of Formatted References for Authors of Journal Articles
43.How should a reference list follow a supplied model?
Reference editing combines source verification with adherence to the journal's model. Identify the source type, then match the order of elements, author treatment, punctuation, journal form, and locator presentation required by that model. Consistency alone is insufficient if every entry follows the wrong pattern. Avoid importing rules from another style through habit. When the model lacks an unusual source type, seek the publisher's applicable guidance instead of inventing a format that obscures identification.
Apply it
A project supplies a model that places the year after the journal title and abbreviates journal names. Apply that pattern to comparable journal articles, while using the separate book model for a chapter citation.
Common pitfall: One universal punctuation template cannot correctly represent every source type. Mechanical consistency can hide a failure to follow the actual model supplied for the project.
NLM — Samples of Formatted References for Authors of Journal Articles · BELS Certification Study Guide — currently linked PDF
44.How can an editor check whether a citation supports its claim?
A citation links a particular statement to evidence, so bibliographic correctness and evidentiary relevance are separate checks. Compare the claim with what the cited source actually investigated and concluded. Differences in population, design, outcome, or certainty can make a superficially relevant citation inadequate. Prefer direct support where appropriate and query mismatches. Do not assume that a source supports a statement because it discusses the same topic or is repeatedly cited by other authors.
Apply it
A sentence claims a method improves long-term outcomes, but its citation reports only short-term measurement agreement. Ask for evidence supporting the outcome claim or recommend narrowing the sentence to the measurement finding actually addressed.
Common pitfall: A correct reference entry does not validate the sentence attached to it. Topic overlap cannot substitute for evidence matching the specific claim and its strength.
ICMJE — Preparing a Manuscript for Submission to a Medical Journal
45.What distinguishes copyediting from scientific peer review?
Copyediting improves language, consistency, organization, and presentation while identifying issues that need author attention. Scientific peer review evaluates aspects such as methodological validity, interpretation, and contribution using relevant expertise. The roles can overlap in detecting problems, but noticing a statistical inconsistency does not authorize the editor to redesign an analysis. State the issue, seek clarification, and recommend specialist assessment when resolution requires expertise beyond the assignment or the editor's demonstrated competence.
Apply it
An editor notices that a reported analysis may not account for repeated measurements. Flag the concern and request clarification or statistical review rather than selecting a different model and rewriting the results independently.
Common pitfall: Recognizing a possible methodological problem is valuable; presenting an unverified technical solution as an editorial correction can exceed both the assignment and the editor's expertise.
BELS Certification Study Guide — currently linked PDF · BELS Code of Ethics
46.How should journal instructions guide submission preparation?
Journal instructions define submission requirements such as article structure, abstract headings, reference style, display limits, and required statements. Identify the correct article type and distinguish mandatory requirements from preferences. Apply them systematically while preserving complete reporting. If a length or display limit conflicts with necessary information, propose an allowed solution such as supplementary material or ask the journal for clarification. Compliance is not achieved by deleting essential methods or qualifications simply to satisfy a numerical limit.
Apply it
A journal allows a structured abstract with specified headings. Reorganize the existing content under those headings and check the required elements. If essential information exceeds the limit, recommend focused shortening rather than dropping the principal limitation.
Common pitfall: Instructions for a different article type may look plausible but impose the wrong structure. Meeting a word limit does not compensate for incomplete scientific reporting.
ICMJE — Preparing a Manuscript for Submission to a Medical Journal · BELS Certification Study Guide — currently linked PDF
47.Why does version control matter to editorial accuracy?
Editorial accuracy depends on knowing which document and decisions are current. Version control prevents approved corrections from being lost and obsolete values from being restored. Establish a clear master version, retain an audit trail of substantive decisions, and reconcile parallel changes before final checks. Review changes in context rather than accepting them solely because they are newer. A revised table may require corresponding changes in the abstract, Results, legends, and response to reviewers.
Apply it
Two collaborators return different revisions of the same manuscript. Reconcile them into an identified master, resolve conflicting changes with the responsible author, and check every repeated result after an approved analysis update is incorporated.
Common pitfall: The newest file is not automatically the authoritative version. Parallel revisions can contain mutually incompatible changes, including accidental restoration of values that were already corrected.
BELS Certification Study Guide — currently linked PDF · BELS Code of Ethics
48.When should an editor seek specialist assistance?
An editor should recognize the boundary between a detectable problem and a problem they are qualified to resolve. Specialist assistance is appropriate when a decision depends on unfamiliar nomenclature, complex analysis, legal interpretation, or technical methods beyond the editor's expertise. Describe the uncertainty specifically so the appropriate expert can address it. Continue safe work elsewhere while the issue is resolved, and preserve the distinction between a confirmed error and a concern awaiting verification.
Apply it
A manuscript contains an unfamiliar taxonomic change that may alter several names. Flag the exact affected terms and request verification from the author or a qualified specialist, while completing unrelated grammar and consistency edits.
Common pitfall: Confidence from general editing experience does not establish expertise in every scientific field. Equally, unfamiliarity is not evidence that the author's terminology is wrong.
Legal and ethical responsibilitiesnot stated
49.Which four criteria establish ICMJE authorship?
ICMJE authorship requires all four criteria: a substantial contribution to conception or design, or acquisition, analysis, or interpretation of data; drafting or critically revising important intellectual content; final approval of the version to be published; and agreement to accountability for the work's accuracy and integrity. Meeting only one criterion is insufficient. Contributors satisfying the first should have an opportunity to participate in the remaining activities rather than being deliberately excluded from authorship eligibility.
Apply it
A researcher performs substantial data analysis but has not reviewed the manuscript. Invite meaningful drafting or critical revision, final approval, and accountability discussion before deciding authorship. Do not treat analysis alone as either automatic authorship or automatic exclusion.
Common pitfall: Seniority, funding acquisition, or a single contribution does not independently satisfy all four criteria. Authorship should not be granted solely as a courtesy or reward.
50.When should a contributor be acknowledged rather than listed as an author?
Acknowledgment recognizes contributions that do not meet all authorship criteria, such as specified technical assistance or writing support. Describe the contribution accurately rather than using acknowledgment to conceal someone who qualifies as an author. ICMJE recommends obtaining permission from named acknowledged individuals because readers may infer their endorsement of the work. Contributor roles, financial support, and authorship are related but separate reporting decisions, each requiring the appropriate information and agreement from the people concerned.
Apply it
A language editor improves wording but makes no qualifying intellectual contribution and does not meet the remaining authorship criteria. Acknowledge the editing assistance with permission, and disclose its funding where required by the journal.
Common pitfall: Payment neither guarantees nor excludes authorship. An acknowledgment should accurately describe the work performed, and naming someone without permission can imply endorsement they did not provide.
51.How do funding and competing-interest disclosures differ?
Funding disclosure identifies support for the work; competing-interest disclosure identifies relationships and activities that readers may consider relevant to interpretation. They overlap but are not interchangeable. An unfunded study can still involve consulting relationships, intellectual commitments, or other relevant interests. Disclosure promotes transparency rather than proving that a result is biased. Obtain the required information from responsible contributors and follow the journal's process without independently declaring that an undisclosed relationship is harmless or disqualifying.
Apply it
An author reports no study funding but has a consulting relationship with a company whose product is evaluated. Retain the accurate funding statement and separately request the relevant relationship disclosure through the journal's required process.
Common pitfall: “No funding” does not mean “no competing interests.” Conversely, a disclosed relationship does not by itself establish misconduct or invalidate every result in the report.
ICMJE — Disclosure of Relationships, Activities, and Conflicts of Interest
52.How should unpublished manuscripts be kept confidential?
Unpublished manuscripts and associated data can contain confidential findings, personal information, and commercially sensitive details. Access and sharing should remain within the agreed purpose and authorized participants. Use appropriate handling arrangements and avoid exposing content through casual discussion, demonstrations, or unapproved services. Confidentiality also applies when asking for assistance: share only what is necessary and permitted. A concern about integrity should follow the appropriate reporting channel rather than becoming a reason for unrestricted public disclosure.
Apply it
An editor wants advice on an unusual sentence from a confidential manuscript. Seek permission or construct a genuinely nonidentifying example that preserves the language issue without exposing unpublished findings, identities, or distinctive confidential details.
Common pitfall: Removing author names may not anonymize a manuscript excerpt. Unique methods, results, affiliations, or contextual details can still reveal the project and its participants.
53.What responsibility remains when an editor uses automated tools?
Tools can assist with spelling, consistency, and other editorial tasks, but the editor remains responsible for the accuracy and appropriateness of the delivered work. Assess confidentiality, authorization, and the tool's limitations before use. Verify suggested changes against the manuscript, supplied instructions, and relevant evidence. A fluent replacement can introduce a false statement, alter uncertainty, or corrupt nomenclature. Tool use should be transparent when required by the agreement, journal, or applicable professional obligations.
Apply it
A checking tool proposes replacing a technical phrase with a smoother expression that implies causation. Reject the suggestion unless the stronger claim is supported, and verify that the service was authorized to process the manuscript.
Common pitfall: Automation does not transfer accountability to the software. A high-confidence suggestion can still be scientifically wrong, outside scope, or incompatible with confidentiality obligations.
54.How can plagiarism differ from legitimate paraphrase?
Legitimate paraphrase expresses another source's ideas in genuinely new wording and structure while providing appropriate attribution. Replacing a few words in a borrowed passage can retain its distinctive expression and reasoning, even when a citation is added. Exact wording generally needs quotation or another permitted treatment under the applicable publication rules and rights. Evaluate both attribution and textual borrowing. A similarity signal warrants contextual review; it is evidence to investigate, not a complete misconduct determination.
Apply it
A discussion paragraph closely follows a source's sentence sequence with only substituted adjectives. Flag the passage, request an independently written synthesis with citation, and determine whether any retained exact wording requires quotation and permission.
Common pitfall: Adding a citation does not automatically authorize extensive copied expression. Equally, shared technical phrases alone do not prove plagiarism without examining their context and distinctiveness.
BELS Certification Study Guide — currently linked PDF · BELS Code of Ethics
55.When does overlapping publication require disclosure?
Overlapping reports can mislead readers when the same data or findings are presented as independent evidence without clear explanation. Related manuscripts, prior dissemination, and legitimate secondary uses require transparent handling under the journal's policies. Ask what was previously reported, what is new, and whether overlap is disclosed and cited. Shared data do not automatically make every related paper improper, but changing a title or author order does not create an independent study.
Apply it
Two manuscripts describe the same participants and primary results, but the newer paper does not mention the earlier report. Ask the authors to explain the overlap and disclose the related publication to the journal before submission.
Common pitfall: A new narrative does not make reused findings new evidence. Conversely, a genuinely distinct secondary analysis may be publishable when its relationship to prior work is transparent.
BELS Certification Study Guide — currently linked PDF · BELS Code of Ethics
56.How should suspected data fabrication or falsification be handled?
Fabrication involves making up data or results; falsification involves manipulating research materials, processes, or data so the record does not accurately represent the work. An unusual pattern or inconsistency may justify inquiry but does not establish intent. Preserve the relevant evidence, identify the discrepancy precisely, and follow the appropriate confidential reporting process. Do not repair suspicious values to make them plausible, conduct an unauthorized investigation, or label an author guilty without a proper determination.
Apply it
Several tables contain an unexplained repeated numerical pattern. Document the exact cells and ask for clarification through the responsible editorial channel. Keep the submitted values intact while the concern is assessed rather than generating replacement values.
Common pitfall: A copy-and-paste error can resemble misconduct. The editor's immediate task is accurate documentation and appropriate escalation, rather than inferring intent from an anomaly alone.
BELS Code of Ethics · BELS Certification Study Guide — currently linked PDF
57.What research oversight information should a manuscript report?
Research involving human participants should report the relevant independent review and explain consent arrangements, including an authorized waiver where applicable. Animal research should report compliance with relevant institutional and applicable animal-care standards. The editor checks that the required statements are present and coherent; an editor cannot retrospectively grant approval. Distinguish an absent statement from absent approval, and request the appropriate documentation or explanation without assuming that a familiar institution name establishes compliance for this particular study.
Apply it
A human-participant report mentions consent but gives no review-board information. Request the reviewing body's identification and approval or applicable exemption details. Do not insert a generic approval sentence merely because similar studies commonly require review.
Common pitfall: Consent and ethics review address related but different safeguards. Reporting one does not automatically establish the other, and a missing statement does not alone prove noncompliance.
58.When is consent for identifiable publication needed?
Research-participation consent does not automatically authorize identifiable publication. Under ICMJE recommendations, identifying information should be published only when scientifically essential and supported by written informed consent for publication from the patient or appropriate parent or guardian. An identifiable patient must be shown the manuscript to be published, and consent discussions must disclose potential availability on the Internet as well as in print. Consent documentation is archived by the journal, authors, or both according to applicable law and journal policy. Assess identification across text, images, pedigrees, and supplements; do not alter data deceptively to disguise identity.
Apply it
A case image hides the eyes, but the text gives distinctive personal details. Assess whether those details are essential. For identifiable publication, verify written publication consent, that the patient was shown the manuscript, and disclosure of potential Internet availability. Confirm that consent documentation is archived under the applicable legal and journal requirements.
Common pitfall: Eye masking or name removal does not reliably prevent identification. A research-consent form also does not establish that the patient reviewed the proposed publication or authorized its identifiable public release.
59.What does CC BY 4.0 require when adapting a figure?
CC BY 4.0 permits sharing and adaptation, including commercial use, subject to its conditions. When sharing adapted material, retain required attribution information, identify the license, and indicate modifications in a reasonable manner. Do not imply that the original creator endorses the adaptation. Check whether third-party elements are actually covered by the license and remember that privacy, publicity, and other rights may still matter. The license supplies permission for covered rights, not a blanket clearance for everything pictured.
Apply it
An editor adapts a CC BY 4.0 chart by regrouping categories. Credit the creator and source, identify and link the license, state that the categories were modified, and check any separately credited third-party elements.
Common pitfall: A license label on an article may exclude particular third-party figures. Attribution alone also does not disclose modifications or establish rights outside the license's scope.
60.How should permissions and copyright exceptions be evaluated?
Reusing protected material requires a valid basis such as permission, an applicable license, public-domain status, or a legally applicable exception. Attribution alone supplies no reuse right. In the United States, fair use requires a case-specific assessment of four factors: purpose and character of the use, including commercial or educational purpose and whether it adds a further purpose; nature of the copyrighted work; amount and substantiality used, including the work's essential expression; and effect on the potential market or value. No factor or fixed word count guarantees an outcome. Other jurisdictions have their own exceptions.
Apply it
A US publisher proposes reproducing an entire unlicensed diagram in a textbook. Examine whether the use critically analyzes the diagram or simply repeats its original function; whether the diagram is predominantly factual or creatively expressive; why the entire diagram, including its central expression, is needed; and whether reuse could substitute for the original or harm its licensing market. Balance the factors without declaring automatic fair use. If no license, permission, or sufficiently supported exception applies, obtain clearance or choose another figure.
Common pitfall: Educational purpose, citation, and online availability do not independently establish fair use. Using an entire diagram is relevant to amount and substantiality but does not alone determine the outcome, and US fair-use criteria do not apply universally.
More Information on Fair Use | U.S. Copyright Office · BELS Certification Study Guide — currently linked PDF
What to focus on during revision
The following are CertMedbry study suggestions. Use the official outline to check the full scope of your examination.
- Apply supplied style instructions consistently while preserving scientific names, symbols, and meaning.
- Distinguish an unambiguous language correction from a change that requires an author decision.
- Check denominators, percentage wording, units, uncertainty measures, and agreement among text and displays.
- Read syntax for restrictive meaning, modifier attachment, comparison boundaries, and causal strength.
- Write focused author queries that identify the discrepancy and request an actionable resolution.
- Separate authorship, acknowledgment, funding, competing interests, research consent, and publication consent.
- Use the complete official five-domain outline to identify topics beyond this selective guide.
A practical preparation plan
1. Build a domain-based error record
Complete the original questions and classify each error under the exact BELS domain. Record the decisive cue you missed, such as an unknown denominator, an essential clause, or an unverified scientific assumption.
2. Practise instruction-driven editing
Create a short style sheet for a fictional manuscript. Apply its spelling, abbreviation, heading, and reference rules to a passage, then explain every exception that preserves a proper name or scientific distinction.
3. Audit one result across the document
Trace a fictional finding through the abstract, Results, table, and figure. Check population definitions, counts, percentages, units, uncertainty, and interpretation before deciding whether a discrepancy is arithmetic or requires an author query.
4. Rehearse query decisions
For each uncertain passage, write one neutral query that states the issue and requests a specific fact or decision. Compare that approach with a silent correction and identify what evidence would justify either action.
5. Separate related ethical obligations
Use paired cases to distinguish authorship from acknowledgment, funding from competing interests, research consent from publication consent, and attribution from permission. State the criterion that changes the decision in each pair.
6. Return to the official scope
Compare your error record with the full linked BELS outline. Revisit weak topics using the relevant primary references, and confirm current administrative instructions separately before arranging the examination.
Use your sample score as a starting point
The free set contains 20 original practice questions. It is a small learning sample, not an official examination or a validated pass prediction. Review each explanation and its source before moving to another topic.
Start the free sampleOfficial sources and updates
- BELS — About Us
- BELS — Study Guide
- BELS Certification Study Guide — currently linked PDF
- BELS Certification Study Guide — older LN PDF
- BELS Code of Ethics
- Purdue OWL — Making Subjects and Verbs Agree
- Purdue OWL — Extended Rules for Using Commas
- Purdue OWL — Dangling Modifiers and How To Correct Them
- Purdue OWL — Parallel Structure
- NIST Guide to the SI, Chapter 7 — Expressing Values of Quantities
- ICMJE — Preparing a Manuscript for Submission to a Medical Journal
- NLM — Samples of Formatted References for Authors of Journal Articles
- ICMJE — Defining the Role of Authors and Contributors
- ICMJE — Disclosure of Relationships, Activities, and Conflicts of Interest
- ICMJE — Protection of Research Participants
- Creative Commons Attribution 4.0 International — Legal Code
- Certification FAQ
- www.itl.nist.gov
- ICMJE | Recommendations | Overlapping Publications
- More Information on Fair Use | U.S. Copyright Office
- Definition of Research Misconduct | ORI - The Office of Research Integrity
- p-valuestatement.pdf
- Frequently asked questions | HUGO Gene Nomenclature Committee
- NIST Guide to the SI, Chapter 6: Rules and Style Conventions for Printing and Using Units | NIST
- 1.3.5.2. Confidence Limits for the Mean
Confirm current eligibility, fees, scheduling and policies directly with the examination provider. CertMedbry is independent and is not endorsed by these organisations. How we handle content and corrections.