The BCaBA exam is the BACB's certification exam for Board Certified Assistant Behavior Analysts. It has 175 multiple-choice questions (150 scored and 25 unscored pilot questions), takes 4 hours at a Pearson VUE testing center, and is based on the BCaBA Test Content Outline (6th ed.), which has 90 tasks across 9 domains.
The Board Certified Assistant Behavior Analyst (BCaBA) is an undergraduate-level certification in applied behavior analysis (ABA), issued by the Behavior Analyst Certification Board (BACB). BCaBAs deliver behavior-analytic services under the supervision of a BCBA or BCBA-D, and can supervise RBTs and other paraprofessionals.
In the BACB career path, BCaBA sits between the entry-level RBT and the graduate-level BCBA.
Since January 1, 2025, the BCaBA exam has been based on the BCaBA Test Content Outline (6th ed.), which replaced the 5th-edition Task List. The key changes:
The BACB now uses the term "Test Content Outline" (TCO) instead of "Task List."
The outline has 90 tasks in 9 domains.
The exam includes 25 unscored pilot questions, bringing the total to 175.
Practice material written for the 5th-edition Task List no longer matches the current exam.
Code : BCaBA
Exam Name : Board Certified Assistant Behavior Analyst
Vendor : Behavior Analyst Certification Board (BACB)
Level : Undergraduate (bachelor's degree)
Number of Questions : 175 (150 scored + 25 unscored pilot questions)
Duration : 4 hours
Question Format : Multiple-choice, four options
Scoring : Pass/fail
Delivery : Pearson VUE testing centers
Content Outline : BCaBA Test Content Outline (6th ed.), in effect since January 2025
Status : Active
Domain : G. Behavior-Change Procedures
Questions : 22
Weight : 15%
Domain : C. Measurement, Data Display, and Interpretation
Questions : 22
Weight : 15%
Domain : H. Selecting and Implementing Interventions
Questions : 22
Weight : 15%
Domain : B. Concepts and Principles
Questions : 18
Weight : 12%
Domain : E. Ethical and Professional Issues
Questions : 18
Weight : 12%
Domain : F. Behavior Assessment
Questions : 17
Weight : 11%
Domain : I. Personnel Supervision and Management
Questions : 15
Weight : 10%
Domain : A. Behaviorism and Philosophical Foundations
Questions : 10
Weight : 7%
Domain : D. Experimental Design
Questions : 10
Weight : 7%
Total Questions: 150
weight : 100%
To sit for the BCaBA exam, candidates generally need to:
Earn a bachelor's degree from a qualifying institution.
Complete behavior-analytic coursework that meets BACB requirements.
Complete supervised fieldwork in applied behavior analysis.
Apply to the BACB and, once approved, schedule the exam with Pearson VUE.
Pass the BCaBA exam.
Bachelor's graduates in psychology, education or a related field who want a career in ABA
RBTs ready to move up to an analyst-level role
ABA professionals who want to supervise RBTs
Students planning to become a BCBA after completing a master's degree
The BCaBA exam has 175 multiple-choice questions: 150 scored and 25 unscored pilot questions.
You have 4 hours to complete the exam at a Pearson VUE testing center.
It is the BACB's official outline of BCaBA exam content, in effect since January 2025. It has 90 tasks organized into 9 domains and replaced the 5th-edition Task List.
Behavior-Change Procedures carries the most weight, with 22 questions (15%). It is followed by Measurement, Data Display, and Interpretation (13%) and Selecting and Implementing Interventions (13%).
The BCaBA exam is pass/fail. The BACB sets the passing standard through a criterion-referenced process rather than publishing a fixed percentage.
You need a bachelor's degree, plus qualifying behavior-analytic coursework and supervised fieldwork.
A BCaBA holds a bachelor's degree and practices under the supervision of a BCBA. A BCBA holds a master's degree and practices independently.
Yes. BCaBAs can supervise RBTs and other paraprofessionals, while they themselves remain under BCBA supervision.
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Everything you need to know about the Board Certified Assistant Behavior Analyst Practice Exam certification
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Updated September 02, 2026
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