BCBA 6th Edition Domain B
BCBA Domain B: Concepts and Principles Study Guide
Domain B covers the concepts and principles used to describe, analyze, and change behavior, including reinforcement, punishment, stimulus control, motivating operations, and verbal behavior concepts.
- Domain B: Concepts and Principles
- 24 scored questions, 14% of the exam
- Original study guidance, not copied exam items
Answer first
What Domain B covers
Domain B covers the concepts and principles used to describe, analyze, and change behavior, including reinforcement, punishment, stimulus control, motivating operations, and verbal behavior concepts.
The BACB 6th Edition Test Content Outline assigns Domain B 24 scored questions, or 14% of the exam. The percentage is an official exam weight; the study sequence below is editorial guidance.
Worked vignette
Reason through an original practice scenario
A teacher gives a student access to a preferred drawing activity after the student raises a hand, and hand-raising becomes more frequent. The relevant question is what consequence followed the response and changed its future probability, not whether the teacher intended to reward the student.
This is an original study vignette written for this guide. It is not a BACB exam item and is not copied from Cooper, Heron, and Heward.
Five practice prompts
Practice Domain B without memorizing answer choices
Answer each prompt in writing, then explain what evidence would change your decision. These are prompts for study, not full exam items.
- Name the response, consequence, and change in future probability.
- How would you distinguish reinforcement from bribery in this example?
- What motivating operation could alter the value of the drawing activity?
- What evidence would support stimulus control by the teacher's instruction?
- Write a competing explanation and state what data would discriminate between them.
This week
A focused Domain B study block
Create a comparison table for reinforcement, punishment, motivating operations, and stimulus control. Apply each term to a short vignette, then explain why the consequence and future behavior are necessary to identify the relation.
For textbook concepts used here, consult Cooper, Heron, and Heward (2020) and verify current ethics or exam requirements against the BACB source documents.
Domain B study questions
How many BCBA exam questions come from Domain B?
The 6th Edition TCO assigns Domain B 24 scored questions, or 14% of the 175 scored questions. The BACB can update exam documents, so verify the current outline.
Are the prompts on this Domain B guide actual exam questions?
No. They are original practice prompts for reasoning and discussion, not copied or represented BACB exam items.
How should I practice this domain?
Use the domain-intent practice link on this page, review why each answer is stronger than its distractors, and use a full mock later for pacing across all nine domains.
Sources and verification
Related BCBA study guides
BCBA Domain G: Behavior-Change Procedures Study Guide