Board Certified Behavior Analyst (BCBA) Certification Examination Study Guide

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An analyst records interruptions during lessons, notices they predictably increase during lengthy lectures, and later systematically alternates lecture length. Only replicated behavior changes linked to that manipulation would support control rather than prediction alone.

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A learner reports feeling anxious before presentations. The analyst acknowledges that report, measures presentation avoidance, and examines audience reactions and escape opportunities instead of explaining every instance solely through an unmeasured anxiety trait.

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A report provides exact teaching steps and shows improvement in one clinic session. Its procedures may be technological, but additional evidence is needed to demonstrate experimental control, meaningful benefit, and skill use outside that session.

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A student asks for help, the teacher assists, and help requests increase. Another student requests a pause, work stops briefly, and pause requests increase. The first contingency adds assistance; the second removes task demands.

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After a game-rule violation, a player loses a token and subsequent violations decrease. This is negative punishment. If complaining instead ends an unwanted drill and complaining increases, that separate contingency is negative reinforcement.

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A learner's shouting previously produced access to a tablet. Adults stop providing tablet access after shouting while reinforcing an appropriate request. Simply withholding conversation would not discontinue the identified tangible-reinforcement contingency in this case.

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A workstation displays green when every fifth assembly earns a point and blue when the first assembly after two minutes earns a point. Alternating these signaled components creates a multiple schedule with ratio and interval components.

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After a long period without water, drinking becomes more valuable. A functioning fountain's indicator signals where pressing a button will produce water. Deprivation concerns effectiveness; the indicator concerns the availability of reinforcement for pressing.

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A child says 'water' after seeing a river, after being asked what fills a swimming pool, and when requesting a drink. The word's form stays constant, but the controlling conditions support different verbal classifications.

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After learning to greet one instructor with 'hello,' a learner greets a new instructor, later says 'good morning' without direct teaching, and continues greeting next month. These observations illustrate stimulus generalization, response generalization, and maintenance respectively.

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A learner earns points exchangeable for several chosen activities. If points stop increasing work completion after preferred activities become unavailable, the analyst checks the exchange system and current backup value before increasing the response requirement.

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Instead of recording 'disrespect,' a team defines an interruption as audible speech beginning while another speaker is talking, excluding assigned choral responses. They add an episode-separation rule so rapid bursts are counted consistently across observers.

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A learner makes 18 requests in 30 minutes and 20 requests in 50 minutes. Rates are 0.60 and 0.40 requests per minute, respectively. The second session's larger count therefore does not indicate a higher response rate.

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A student begins work eight minutes after an instruction, then works continuously for twelve minutes. To evaluate delayed initiation, measure instruction-to-start latency. Measuring the twelve-minute work duration would address persistence after starting instead.

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During each one-minute interval, a learner briefly hums for two seconds. Partial-interval recording could show humming in every interval although total duration is low. Continuous duration recording would better answer how much session time humming occupies.

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Observers record 16 and 20 responses, producing 80% total-count agreement. On another day, both record 20, producing 100%. Reviewing timestamps reveals different events, showing why equal totals cannot establish event-by-event agreement in that session.

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A supervisor counts completed worksheets to estimate independent work. Because peers sometimes supply answers, worksheet totals cannot establish independence. Direct observation of task steps and assistance would better address the stated goal in this classroom.

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A graph shows higher counts after treatment, but sessions also doubled in length. Replotting rate reveals little change. The analyst checks observation units before attributing the apparent level increase to the intervention or changing the plan.

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A harmless classroom response changes during a point system, returns toward baseline when points stop, and changes again when points resume. Those replicated transitions offer stronger evidence than one baseline-to-treatment comparison without a planned replication.

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Three classrooms are measured concurrently. A teaching package starts in successive classrooms on different dates, and improvement occurs only after each start. Continued baseline performance in untreated classrooms helps evaluate the explanation that a schoolwide event caused improvement.

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An analyst compares two brief teaching formats through planned alternation. In a separate project, daily walking gradually tracks successive step goals. The first question fits multielement comparison; the second may fit a changing-criterion evaluation.

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A package combines modeling, rehearsal, and feedback. Removing feedback while holding other elements stable examines a component. Keeping all elements while comparing five versus ten practice opportunities examines a parameter of the training arrangement.

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An analyst experienced in classroom instruction is asked to lead an unfamiliar high-risk assessment. The analyst evaluates specific skill gaps, arranges qualified consultation and supervised training, and limits responsibilities until competent performance can be demonstrated.

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A teacher requests an entire assessment file to learn how to implement one classroom procedure. The analyst checks authorization and shares the relevant implementation information through an approved secure channel rather than automatically forwarding the full record.

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A previously approved teaching program is being changed to include a materially different behavior-reduction procedure. The analyst explains the new arrangement and alternatives, checks understanding, obtains appropriate authorization, and discusses how the client's participation will be monitored.

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A clinician proposes direct eye contact as a goal. The client explains that another communication style is more comfortable and culturally appropriate. The team instead measures whether communication partners understand requests and whether the client values the interaction.

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A learner suddenly refuses meals and repeatedly touches one side of the mouth. The analyst documents the change, communicates with the caregiver, and supports timely medical or dental evaluation before treating refusal solely as escape-maintained behavior.

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A supervisor is offered a business partnership by a current supervisee. The supervisor examines how financial dependence could affect evaluations and feedback, declines the overlapping arrangement, and preserves the clarity of the existing supervisory relationship.

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A clinic wants to advertise that its program guarantees independent living. The analyst replaces the guarantee with an accurate description of services and appropriately qualified outcome information, and reviews any proposed client material for confidentiality concerns.

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An analyst will leave an agency while a learner still needs services. The analyst coordinates with the family and receiving professional, communicates effective procedures and unresolved concerns, and documents responsibilities and timing for the planned handoff.

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An old report describes aggression during work demands, but current incidents occur during crowded transport. The analyst reviews the earlier procedures and medical history while collecting current information rather than importing the former escape hypothesis unchanged.

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A learner follows household routines in the family's primary language but fails unfamiliar clinic instructions in another language. The analyst assesses the skill with accessible communication before concluding that the learner lacks the underlying daily-living repertoire.

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A learner independently sorts recycling in a structured probe but rarely sorts at lunch. The analyst examines bin visibility, available time, and natural consequences before scheduling basic sorting instruction that the learner may not need.

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A learner selects a music toy on most paired-choice trials. Before relying on it for instruction, the analyst evaluates whether contingent access increases responding and checks that the learner can use the toy in that setting.

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Attention follows most shouting episodes, but adults also provide attention almost continuously when shouting is absent. The analyst compares those contexts and treats attention maintenance as a hypothesis requiring stronger assessment rather than a confirmed conclusion.

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An analyst measures operationally defined hand biting. During demand sessions, tasks are presented and each occurrence of hand biting produces a 30-second break with work materials removed. In the play comparison, no demands are presented and attention and preferred items are available independently of hand biting. Repeatedly higher hand-biting rates in demand sessions support escape maintenance. This contingency follows the original experimental procedure described in the cited 2009 assessment.

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Behavior remains low in every assessment condition although caregivers report frequent episodes at home. The analyst checks whether the relevant routines, materials, and motivating conditions were represented, then plans a justified revision rather than declaring that no function exists.

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An adult identifies independently requesting transport as more useful than completing another tabletop sorting task. Assessment shows transport requests are feasible with accessible communication. The team prioritizes that goal and evaluates whether it improves valued community participation.

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Assessment supports escape-maintained disruption. The team teaches an accessible break request and reinforces it with a brief pause from work. They measure independent requests, disruption, and whether staff deliver the planned consequence consistently during relevant tasks.

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A learner asks appropriate questions but does so too frequently for a discussion format. A carefully designed DRL arrangement may fit reduced frequency. If questions are appropriate in rate but need a different form, DRA addresses that distinct goal.

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An attention-based plan schedules brief interaction every two minutes independently of calling out. This is fixed-time delivery. If attention instead follows the first appropriate request after two minutes, the arrangement includes a response requirement and is an interval schedule.

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Students earn points for independently organizing materials and exchange them at a stated time for chosen activities. When responding declines, the analyst checks missing exchange opportunities and backup availability before assuming that students need larger response requirements.

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A learner can complete a sorting action but misses the relevant visual feature. Highlighting that feature may be more appropriate than physically guiding every response. The analyst records independent selections separately and plans to remove the highlighting.

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An instructor initially models a label immediately, then delays the model. The learner begins labeling correctly before the model appears. Recording those pre-prompt responses separately demonstrates a change that an undifferentiated accuracy percentage would conceal.

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A learner currently speaks a request too softly to be heard across a counter. The instructor reinforces progressively greater audible volume while preserving an appropriate maximum. The target dimension is volume rather than a sequence of separate task steps.

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A learner can perform most handwashing steps but needs help with two transitions. Total-task practice may preserve useful independent performance. Another learner may benefit from backward chaining to complete the last step and immediately contact the finished-task outcome.

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Establish matching spoken words to pictures, then teach matching those spoken words to corresponding printed words. Next, present a printed word as the sample and test picture selection without directly teaching printed-word-to-picture matching. Accurate untrained selections, with comparison positions varied, support an emergent relation connecting the trained relations. This distinction is illustrated by Sidman's original experiment: https://pubs.asha.org/doi/10.1044/jshr.1401.05.

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Instead of 'improve self-advocacy,' a learner's goal specifies independently requesting clarification during naturally occurring confusing instructions, measured across relevant opportunities and communication partners. The team selects a criterion tied to useful participation and the learner's priorities.

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A plan requires continuous one-to-one attention, but a community program has shared staffing. The analyst collaborates on a feasible, function-based arrangement, trains implementers, and measures both integrity and outcomes instead of issuing an impossible schedule.

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A learner can easily hand over a break card but cannot yet produce a long spoken sentence. The team selects the accessible request, teaches partners to honor it appropriately, and evaluates its use during actual difficult tasks.

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For a response-cost procedure selected under the required criteria and reviews, the team measures target behavior, crying duration, attempts to leave, and voluntary activity participation. If attempts to leave increase or participation declines to the plan's predefined review threshold, staff suspend the response-cost component under the agreed plan, maintain reinforcement of useful alternatives, and reassess the arrangement with the client and team. Lower target counts alone do not establish an acceptable outcome.

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A learner uses a taught request successfully, but requests stop working during a staffing change and earlier problem behavior returns. The analyst restores the functional communication contingency and builds a feasible continuity plan before attempting further schedule changes.

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A program reports 90% integrity, but the omitted component is reinforcement of the new request. The analyst reviews component-level data and supports correct consequence delivery before deciding whether the intervention itself needs a different behavioral mechanism.

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Independent requests remain flat despite reliable measurement and strong implementation. The team discovers that the requested outcome is rarely valuable during teaching. They revise opportunity selection and evaluate the resulting pattern instead of changing several unrelated procedures simultaneously.

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Before training begins, a supervisor and supervisee agree on observation methods, skill criteria, meeting arrangements, and how to raise concerns. They revisit these expectations when the work setting changes rather than assuming the original agreement covers every situation.

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Two supervisees need the same assessment skill, but one has had fewer practice opportunities. The supervisor preserves the competence criterion while arranging additional modeled practice and accessible materials, then evaluates both through direct demonstration under comparable work conditions.

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After describing a prompting procedure, a trainer demonstrates it, observes staff rehearsals, and provides specific feedback until steps are accurate. The trainer then observes implementation with the relevant materials and routines to verify workplace transfer.

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Staff accurately demonstrate data collection during rehearsal but omit it during busy transitions because forms are stored elsewhere. The supervisor places accessible forms at the transition point and evaluates completion before requiring another general training session.

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Instead of saying 'be more attentive,' a supervisor identifies two missed wait intervals, demonstrates the required timing, and observes another practice trial. Accurate steps receive specific acknowledgment, and subsequent workplace observations determine whether timing improves reliably.

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A supervision program receives favorable ratings, but observed assessment accuracy remains unchanged. The supervisor adds performance-based rehearsal and feedback, then measures accuracy in practice and workplace assessments while continuing to seek feedback about accessibility and support.