The Free RBT Study Guide

This domain is about turning behavior into numbers you can trust. As an RBT you are the person actually recording data during sessions, so the exam wants to know that you can pick the right measurement system and use it accurately.

The core distinction is continuous versus discontinuous measurement. Continuous measurement (frequency/count, rate, duration, latency, and inter-response time) captures every instance of a behavior. Discontinuous measurement — partial-interval, whole-interval, and momentary time sampling — estimates behavior by sampling intervals, and each type systematically over- or under-estimates behavior in predictable ways.

Assessment is a smaller domain, and the exam is careful to test the RBT's supporting role: you assist the BCBA, you do not design assessments or interpret them independently. Expect questions that hinge on staying inside your scope.

The two areas you must know cold are preference assessments and the data you collect that feeds functional assessment. Know the difference between free-operant, single-stimulus, paired-stimulus (forced-choice), and multiple-stimulus formats, and understand that a preference assessment identifies potential reinforcers — it does not prove something is a reinforcer until it actually strengthens behavior.

This is the heaviest domain on the exam, so it deserves the most study time. Skill acquisition is how you teach new behaviors, and nearly every core ABA teaching procedure lives here.

You need working command of reinforcement, prompting and prompt fading (including most-to-least, least-to-most, and errorless learning), shaping through successive approximations, and behavior chaining (forward, backward, and total task). You must also contrast discrete-trial training (DTT) — structured, massed trials with a clear antecedent-response-consequence — against naturalistic/natural environment teaching (NET), which embeds instruction in play and daily routines.

The second-heaviest domain focuses on decreasing challenging behavior — always in the context of a behavior-reduction plan written by the BCBA. The single most important idea here is that intervention starts with the function of the behavior, not its form.

Master the four functions (access to attention, access to tangibles/activities, escape/avoidance, and automatic/sensory reinforcement) because they drive every strategy. Then learn the differential reinforcement family — DRA (alternative), DRO (other/zero occurrence), DRI (incompatible), and DRL (low rates) — plus extinction and the extinction burst, antecedent strategies, and the RBT's role in following crisis and safety procedures.

Documentation questions are often the fastest points on the exam because the rules are concrete. The theme is objective, professional, timely record-keeping and clear communication with your supervisor.

Know what belongs in a session note (objective, measurable descriptions — what you observed, not your interpretation), when and how to file an incident report, and the basics of confidentiality under HIPAA. You should be able to spot a note that editorializes ('client was being manipulative') versus one that describes behavior objectively ('client screamed for 3 minutes').

The ethics domain is small but high-value, and its rules are testable and unambiguous. Questions here reward candidates who know the RBT Ethics Code and the limits of the RBT role.

Center your study on scope of practice (RBTs implement plans under supervision; they do not create or modify them), the ongoing supervision requirement, and how to handle dual/multiple relationships and conflicts of interest. Boundary scenarios — gifts, social media, romantic or business relationships with clients and families — are common, and the safe answer is almost always to maintain professional boundaries and consult your supervisor.