Free BCBA practice questions with explanations

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Practice items are original study examples mapped to domains and concepts. They are not official BACB questions.

Independent study guidance only. Not affiliated with BACB, not a pass guarantee, and not professional clinical advice.

Pause mixed practice and open the related concept page. Write a one-sentence definition in your own words, then answer two similar questions before moving on.

Treat it as a scenario-reasoning miss. Review the key clue, then write why your selected answer was too early, too broad, or not tied to the data.

Stop random practice for one session. Drill that domain, then check whether the misses are concept gaps, ethics/scope decisions, measurement confusion, or intervention timing.

At the early intervention clinic, staff say a 5-year-old learner is "noncompliant" and ask to add a consequence. The notes only show leaving the work area after difficult demands and a break immediately afterward. Across 4 sessions in service week 1, one observer recorded 12 minutes of observation in the early intervention clinic. The most defensible response is to:

Answer: A. The decision point is: Does the answer replace labels or internal explanations with observable behavior-environment relations? This item specifically tests Science goals: description, prediction, and control through a applied-client-service-scenario format. The key clue is in the stem facts: At the early intervention clinic, staff say a 5-year-old learner is "noncompliant" and ask to add a consequence. The notes only show leaving the work area after difficult demands and a break immediately afterward. Across 4 sessions in service week 1, one observer recorded 12 minutes of observation in the early intervention clinic. The most defensible response is to: Answer A is strongest because it follows this rule: Define the response in observable terms and check the environmental events that reliably come before and after it. It fits the source-backed rule without announcing that rule in the stem. The tempting mistake is to choose a shortcut before the scenario's prerequisite is satisfied. This choice turns the scenario into a label instead of using observable evidence for Observable behavior and environmental explanations. It sounds efficient, but it does not answer the Science goals: description, prediction, and control decision point. Exam move: name the missing prerequisite first, then eliminate answers that jump to a label, a familiar procedure, a single data point, or an undocumented action.

A report for a student lists motivation as "attention seeking" but gives no observable definition or antecedent-consequence data. Across 5 sessions in service week 1, 2 observers recorded 13 minutes of observation in the elementary classroom. Before recommending a procedure, the BCBA should:

Answer: B. The decision point is: Does the answer replace labels or internal explanations with observable behavior-environment relations? This item specifically tests Philosophical assumptions of behavior analysis through a applied-client-service-scenario format. The key clue is in the stem facts: A report for a student lists motivation as "attention seeking" but gives no observable definition or antecedent-consequence data. Across 5 sessions in service week 1, 2 observers recorded 13 minutes of observation in the elementary classroom. Before recommending a procedure, the BCBA should: Answer B is strongest because it follows this rule: Treat reports of thoughts or feelings as information while still analyzing observable behavior and environmental relations. It fits the source-backed rule without announcing that rule in the stem. The tempting mistake is to choose a shortcut before the scenario's prerequisite is satisfied. This choice turns the scenario into a label instead of using observable evidence for Private events in radical behaviorism. It sounds efficient, but it does not answer the Philosophical assumptions of behavior analysis decision point. Exam move: name the missing prerequisite first, then eliminate answers that jump to a label, a familiar procedure, a single data point, or an undocumented action.

At the home program, staff say a child is "noncompliant" and ask to add a consequence. The notes only show dropping to the floor after instructions after difficult demands and a break immediately afterward. Across 6 sessions in service week 1, 3 observers recorded 14 minutes of observation in the home program. The most defensible response is to:

Answer: C. The decision point is: Does the answer replace labels or internal explanations with observable behavior-environment relations? This item specifically tests Radical behaviorist explanation of behavior through a applied-client-service-scenario format. The key clue is in the stem facts: At the home program, staff say a child is "noncompliant" and ask to add a consequence. The notes only show dropping to the floor after instructions after difficult demands and a break immediately afterward. Across 6 sessions in service week 1, 3 observers recorded 14 minutes of observation in the home program. The most defensible response is to: Answer C is strongest because it follows this rule: Treat reports of thoughts or feelings as information while still analyzing observable behavior and environmental relations. It fits the source-backed rule without announcing that rule in the stem. The tempting mistake is to choose a shortcut before the scenario's prerequisite is satisfied. This choice turns the scenario into a label instead of using observable evidence for Private events in radical behaviorism. It sounds efficient, but it does not answer the Radical behaviorist explanation of behavior decision point. Exam move: name the missing prerequisite first, then eliminate answers that jump to a label, a familiar procedure, a single data point, or an undocumented action.

A report for an adult client lists motivation as "attention seeking" but gives no observable definition or antecedent-consequence data. Across 7 sessions in service week 1, one observer recorded 15 minutes of observation in the vocational training room. Before recommending a procedure, the BCBA should:

Answer: D. The decision point is: Does the answer replace labels or internal explanations with observable behavior-environment relations? This item specifically tests Differences among behaviorism, EAB, ABA, and professional practice through a applied-client-service-scenario format. The key clue is in the stem facts: A report for an adult client lists motivation as "attention seeking" but gives no observable definition or antecedent-consequence data. Across 7 sessions in service week 1, one observer recorded 15 minutes of observation in the vocational training room. Before recommending a procedure, the BCBA should: Answer D is strongest because it follows this rule: Define the response in observable terms and check the environmental events that reliably come before and after it. It fits the source-backed rule without announcing that rule in the stem. The tempting mistake is to choose a shortcut before the scenario's prerequisite is satisfied. This choice turns the scenario into a label instead of using observable evidence for Observable behavior and environmental explanations. It sounds efficient, but it does not answer the Differences among behaviorism, EAB, ABA, and professional practice decision point. Exam move: name the missing prerequisite first, then eliminate answers that jump to a label, a familiar procedure, a single data point, or an undocumented action.

At the community outing, staff say an adolescent is "noncompliant" and ask to add a consequence. The notes only show grabbing items from shelves after difficult demands and a break immediately afterward. Across 8 sessions in service week 1, 2 observers recorded 16 minutes of observation in the community outing. The most defensible response is to:

Answer: A. The decision point is: Does the answer replace labels or internal explanations with observable behavior-environment relations? This item specifically tests Applied behavior-analysis dimensions through a applied-client-service-scenario format. The key clue is in the stem facts: At the community outing, staff say an adolescent is "noncompliant" and ask to add a consequence. The notes only show grabbing items from shelves after difficult demands and a break immediately afterward. Across 8 sessions in service week 1, 2 observers recorded 16 minutes of observation in the community outing. The most defensible response is to: Answer A is strongest because it follows this rule: Define the response in observable terms and check the environmental events that reliably come before and after it. It fits the source-backed rule without announcing that rule in the stem. The tempting mistake is to choose a shortcut before the scenario's prerequisite is satisfied. This choice turns the scenario into a label instead of using observable evidence for Observable behavior and environmental explanations. It sounds efficient, but it does not answer the Applied behavior-analysis dimensions decision point. Exam move: name the missing prerequisite first, then eliminate answers that jump to a label, a familiar procedure, a single data point, or an undocumented action.