RBT Study Guide 2026: All Six Domains Explained

This guide walks through the six domains of the RBT exam, following the 3rd Edition Test Content Outline that took effect January 1, 2026. Read a section, then practice that domain with the linked quiz.

A. Data Collection and Graphing (17%, 13 questions)

Continuous measurement records every instance: frequency (count), rate (count per time), duration (how long) and latency (time from a cue to the start of the behavior).
Discontinuous measurement samples behavior: partial-interval (behavior occurred at any point in the interval), whole-interval (throughout the interval) and momentary time sampling (at the instant the interval ends).
Permanent product recording measures the lasting result of a behavior, such as completed worksheets.
Graphs show data over time. The x-axis usually shows time (sessions or dates) and the y-axis shows the measure. Look at level, trend and variability.

Practice Data Collection and Graphing

B. Behavior Assessment (11%, 8 questions)

Assessment gathers information used to plan treatment. The RBT assists and collects data, and the supervisor interprets results and designs the plan.
Preference assessments identify items likely to work as reinforcers. Common formats are single-stimulus, paired-choice and multiple-stimulus.
Indirect assessment uses interviews and questionnaires. Direct assessment uses observation such as ABC data (antecedent, behavior, consequence).
Functional assessment looks for the function of a behavior, commonly attention, escape, access to tangibles or automatic reinforcement.

Practice Behavior Assessment

C. Behavior Acquisition (25%, 19 questions)

Reinforcement increases future behavior: positive reinforcement adds something, negative reinforcement removes something aversive. Punishment decreases behavior.
Prompting helps a learner respond correctly, and prompt fading reduces help over time to avoid prompt dependence. Types include physical, model, gestural, verbal and visual prompts.
Shaping reinforces successive approximations. Chaining teaches a sequence of steps, using forward, backward or total task presentation.
Discrete-trial teaching uses a clear cue, response and consequence. Naturalistic teaching builds skills within everyday activities.
Generalization means a skill appears across people, places and materials. Maintenance means it continues over time.

Practice Behavior Acquisition

D. Behavior Reduction (19%, 14 questions)

The RBT implements the behavior intervention plan written by the supervisor. Do not change it on your own.
Antecedent strategies prevent problem behavior, for example offering choices or a visual schedule.
Replacement behaviors serve the same function in an appropriate way, such as teaching a learner to ask for a break.
Extinction withholds the reinforcer that maintained a behavior. Expect a temporary increase, called an extinction burst.
Differential reinforcement (DRA, DRI, DRO) reinforces desired behavior while not reinforcing the problem behavior.
Follow the crisis procedures in the plan, prioritize safety, and report incidents to your supervisor.

Practice Behavior Reduction

E. Documentation and Reporting (13%, 10 questions)

Session notes should be objective: describe what you saw and did, not opinions or guesses.
Report concerns, incidents and changes to your supervisor promptly, and follow your employer rules on timing.
Protect client privacy. Share information only with authorized people and store records securely.

Practice Documentation and Reporting

F. Ethics (15%, 11 questions)

RBTs work under the direction and supervision of a BACB certificant. You do not design programs or work independently.
Stay within your competence and training, and decline or ask for help with tasks you have not been trained on.
Keep professional boundaries, avoid dual relationships, and keep client information confidential.
The BACB Ethics Code for Behavior Technicians sets the standards. Read it directly at bacb.com.

Practice Ethics