A reversal design may be a poor choice for treating severe self-injury because:

Withdrawing treatment risks harm

Free BCaBA Practice Test 2026

200 original questions on the BACB BCaBA Test Content Outline (6th ed.): concepts and principles, measurement, experimental design, ethics, assessment, behavior-change procedures, intervention monitoring and supervisory relationships. Four 50-question practice tests. Tuned for mobile. Free to start, no account needed.

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A child raises a hand once at 9:05 during a lesson. That single instance is best called:

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The BCaBA exam at a glance

The BCaBA exam is the Behavior Analyst Certification Board's certification exam for Board Certified Assistant Behavior Analysts, the undergraduate-level credential in behavior analysis; BCaBAs practice under the supervision of a BCBA and may supervise RBTs. It has 175 multiple-choice questions in 4 hours, 150 scored and 25 unscored, each with 4 options and 1 correct answer, taken in English on a computer at Pearson VUE testing centers. It follows the BCaBA Test Content Outline (6th ed.): 90 tasks in 9 domains, led by behavior-change procedures (15%). The result is pass or fail against a passing score set by the modified Angoff method, not published as a percentage. Candidates may test up to 8 times in the 2-year authorization period, 30 days apart.

Tigertest has 200 BCaBA practice questions with explanations, free to start with no account required.

Questions: 175 multiple choice (150 scored, 25 unscored), 4 options each
Time: 4 hours
Pass mark: Pass/fail; passing score set by modified Angoff, no published percentage
Content: 9 domains, 90 tasks (6th ed. outline)
Biggest domain: Behavior-Change Procedures, 22 of 150
Retakes: Up to 8 attempts in 2 years, 30 days apart
Where: Pearson VUE testing centers, English only
Run by: Behavior Analyst Certification Board (BACB)

Updated November 2026 by the Tigertest team. Practice questions follow The BACB BCaBA Test Content Outline (6th ed.) and the BCaBA Handbook (updated October 2026), checked November 2026. Exam rules change, so confirm current details with BACB: BCaBA certification.

How It Works

Train by Domain

Five training sets follow the outline in order: philosophy and principles; measurement and experimental design; ethics and behavior assessment; behavior-change procedures and intervention monitoring; and supervisory relationships. Questions you miss come back until you have mastered them.

Weighted Practice Tests

Four practice tests of 50 questions, each weighted like the 150 scored questions on the real exam. Aim for 70% or better. No question appears in more than one test, and every one comes with an explanation.

Built on the BCaBA Test Content Outline (6th ed.)

The BACB publishes how many of the 150 scored questions come from each of the nine domains, and every practice test here keeps that balance, scaled to 50 questions. Ethics questions follow the Ethics Code for Behavior Analysts. Faculty teaching a BCaBA course sequence can set Tigertest as BCaBA review at tigertest.io/teach and see which topics the class misses most.

Behavior-Change Procedures15%

Measurement, Data Display, and Interpretation13%

Intervention Development and Monitoring13%

Concepts and Principles12%

Ethical and Professional Issues12%

Behavior Assessment11%

Supervisory Relationships10%

Behaviorism and Philosophical Foundations7%

Experimental Design7%

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How to Pass the BCaBA Exam

1. Master the principles

Behavior-change procedures is the largest domain, followed by measurement and intervention development. Be able to tell reinforcement from punishment in any scenario, name schedules from their patterns, separate motivating operations from discriminative stimuli, and classify the verbal operants.

2. Read graphs and designs fluently

Practice judging level, trend and variability, calculating rate and IOA, and picking the single-case design that fits a question. Know what each threat to internal validity looks like.

3. Know the Ethics Code by situation

Ethics questions describe a case and ask what to do. Learn the Code's standards on competence, confidentiality, multiple relationships, consent, billing, referrals and when to seek your supervisor's guidance well enough to apply them.

4. Fix your misses, then retest

Tigertest tracks your accuracy by domain. Aim for 70% or better on every practice test before your exam date. After each test, drill the questions you missed and retrain the weakest domain.

BCaBA Exam Frequently Asked Questions

What is the BCaBA exam?

It is the certification exam for the Board Certified Assistant Behavior Analyst credential from the Behavior Analyst Certification Board (BACB), the undergraduate-level certification in behavior analysis. Candidates take it after meeting the degree, coursework and fieldwork requirements and having their application approved. BCaBAs provide behavior-analytic services under the supervision of a BCBA and may supervise RBTs.

How many questions are on the BCaBA exam?

The BACB's BCaBA Handbook says the exam is 4 hours and has 175 multiple-choice questions: 150 scored and 25 unscored. Each question has 4 possible answers with only 1 correct. It is offered only in English, on a computer at Pearson VUE testing centers.

What score do you need to pass the BCaBA exam?

The BCaBA exam is pass/fail. The BACB sets the passing score with the modified Angoff method, a criterion-referenced process run by a panel of certified subject matter experts, and does not publish it as a percentage. The 70 percent line on these practice tests is a readiness target, not the official standard. Candidates may take the exam up to 8 times within the 2-year authorization period, waiting 30 days between attempts.

What is on the BCaBA exam?

The BCaBA Test Content Outline (6th ed.) has 90 tasks in 9 domains: Behaviorism and Philosophical Foundations (10 questions), Concepts and Principles (18), Measurement, Data Display, and Interpretation (20), Experimental Design (10), Ethical and Professional Issues (18), Behavior Assessment (17), Behavior-Change Procedures (22), Intervention Development and Monitoring (20), and Supervisory Relationships (15). Each practice test here keeps that balance, scaled to 50 questions.

Are these the real BCaBA exam questions?

No. Every question is original, written by Tigertest from the BACB's published test content outline, BCaBA Handbook and Ethics Code, so it covers the same knowledge without copying the exam. Graphs are described in words. Tigertest is not affiliated with the Behavior Analyst Certification Board.

I teach an undergraduate BCaBA course sequence. Can my students use Tigertest?

Yes, for free. Make a class at tigertest.io/teach, post one link, and students join with just their name. You see who practiced, their test scores and the topics your class misses most.

BCaBA sample questions and answers

6 of the 200 practice questions, one from each topic, with the answer explained.

1. Why should a caregiver rating scale not be the only basis for naming a function?
- A.They need a lab setting
- B.Reports can be inaccurate
- C.Scales are too costly
- D.They take many months
Answer: B. Indirect assessments depend on memory and opinion, so their results should be confirmed with direct observation or analysis.
2. A child who hits during a game must sit at the edge of the game and watch for 2 minutes. This is:
- A.Exclusion time-out
- B.Overcorrection
- C.Response cost
- D.Contingent observation
Answer: D. Contingent observation is a nonexclusion time-out in which the person stays nearby and watches but cannot take part.
3. After learning to point to a picture of a dog when hearing 'dog', a child says 'dog' when shown the picture, with no teaching. This untrained response is:
- A.An emergent relation
- B.Stimulus fading
- C.Prompt dependence
- D.A response cost effect
Answer: A. A relation that appears without direct training, here from listener to speaker, is an emergent relation.
4. A reversal design may be a poor choice for treating severe self-injury because:
- A.It needs many clients at once
- B.Baseline is not needed for it
- C.Withdrawing treatment risks harm
- D.Its data cannot be graphed
Answer: C. Returning to baseline means removing an effective treatment, which can be dangerous or unethical for severe behavior.
5. A BCaBA suspects a client is being abused at home. She must:
- A.Ask the parent about it
- B.Tell only the RBT on the case
- C.Follow mandated reporting laws
- D.Wait for more proof first
Answer: C. Code 3.01: behavior analysts know and comply with laws on mandated reporting.
6. Which data best support ending services?
- A.Goals met and maintained
- B.The client likes the RBT
- C.Sessions feel routine
- D.The parent is busy
Answer: A. Code 3.15 lists meeting all behavior-change goals as a reason to consider discontinuing services.

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