What’s on the RBT Exam? Content Areas Explained (2026)
As of September 2026, the RBT exam covers 6 content areas across 85 multiple-choice questions: 75 scored plus 10 unscored pilot items, delivered in a single 90-minute session at a Pearson VUE testing center. The current version is the RBT Test Content Outline (3rd ed.), effective for exams administered beginning in 2026, and it publishes an exact item count for every domain rather than only a percentage. Behavior Acquisition carries the most weight at 19 of 75 scored questions (25%), followed by Behavior Reduction at 14 questions (19%) and Ethics at 11 questions (15%). The remaining three domains, Data Collection and Graphing, Documentation and Reporting, and Behavior Assessment, split the rest across 13, 10, and 8 questions respectively. Each question offers 4 answer choices with one correct answer, and the outline organizes all 6 domains into 43 distinct tasks. This guide breaks down every content area, its exact question count, and what candidates are expected to know inside each one, sourced directly from the BACB’s own Test Content Outline.
Figures from the RBT Test Content Outline (3rd ed.), updated 09/2024, as of September 2026.
The Six Content Areas and Their Weight
The RBT Test Content Outline (3rd ed.) is the exam’s blueprint, and it is unusually precise: rather than giving a percentage range for each domain, the BACB publishes an exact number of scored questions per domain out of the 75 that count toward your score. Behavior Acquisition is the largest single area by a wide margin, at 19 questions, meaning close to one in four scored questions comes from this domain. Ethics is the third largest at 11 questions despite covering no clinical procedures at all, a reminder that professional conduct is tested almost as heavily as any single clinical skill area.
A. Data Collection and Graphing (13 questions, 17%)
This domain covers how an RBT records and reports behavior objectively. Expect items on continuous measurement procedures such as frequency, duration, latency, and interresponse time, alongside discontinuous measurement approaches like partial interval, whole interval, and momentary time sampling. Candidates also need to know permanent product recording, how to enter data and update graphs accurately, how to putting what you see and hear into observable, measurable language, and how to calculate and summarize data using rate, mean duration, or percentage. The domain closes with identifying trends in graphed data and describing the risks of data collected inconsistently or procedures drifting from the plan.
B. Behavior Assessment (8 questions, 11%)
The smallest domain by question count still spans three distinct skill areas: conducting preference assessments (multiple stimulus, paired stimulus, and free operant formats), participating in assessments of skill strengths and deficits (curriculum based, developmental, and social skills), and participating in components of functional assessment procedures such as descriptive assessment and functional analysis. An RBT’s role here is participation and data collection under supervision, not independent assessment design.
C. Behavior Acquisition (19 questions, 25%)
The single largest domain focuses on teaching new skills. It covers positive and negative reinforcement procedures delivered immediately and contingently, according to a schedule of reinforcement, and along dimensions like magnitude, intensity, and variety. Candidates need to know how to establish and use conditioned reinforcers, implement discrete trial teaching, naturalistic teaching methods like incidental teaching and natural environment training, and task analyzed chaining in forward, backward, and total task formats. The domain also covers discrimination training, prompting and prompt fading procedures (errorless learning, least to most, stimulus fading, time delay), generalization procedures, the distinction between maintenance and acquisition, shaping, and token economies.
D. Behavior Reduction (14 questions, 19%)
This domain tests procedures that decrease interfering behavior. It opens with identifying common functions of behavior, then moves into antecedent interventions such as noncontingent reinforcement, high probability request sequences, and demand fading. Differential reinforcement procedures (DRO, DRA, DRI, DRL, and functional communication training), extinction procedures, and positive and negative punishment procedures such as time out are all covered. The domain closes with the secondary effects of extinction and punishment, including extinction bursts and emotional responding, and implementing crisis or emergency procedures.
E. Documentation and Reporting (10 questions, 13%)
This domain covers how an RBT communicates with the treatment team. It includes communicating concerns and suggestions from the intervention team to a supervisor in a timely manner, seeking and prioritizing clinical direction, reporting variables that might affect client progress such as illness, medication changes, or schedule changes, and communicating objectively about what occurred during a session in accordance with legal, regulatory, and workplace requirements.
F. Ethics (11 questions, 15%)
Ethics is tested more heavily than Documentation and Reporting despite being entirely non clinical. This domain covers core ethical principles for RBT certificants, providing services only after demonstrating competence, working only under ongoing qualified supervision, identifying effective supervision practices, requirements for collecting and protecting confidential information, requirements for public statements about professional activities including social media, types of multiple relationships and how to mitigate their risks, gift giving and receiving guidelines, interpersonal and professional skills, and ongoing cultural humility in service delivery.
Practicing across all six content areas, weighted the same way the real exam weighs them, is the fastest way to walk in prepared. Try our RBT practice test to work through original questions across every domain, or start with a free RBT practice test to see where you stand first.
Frequently Asked Questions
How many questions are on the RBT exam and how many domains does it cover?
The RBT exam has 85 total questions, 75 scored and 10 unscored pilot items, spanning 6 content domains defined by the RBT Test Content Outline (3rd ed.).
What is the largest content area on the RBT exam?
Behavior Acquisition is the largest, at 19 of 75 scored questions (25%), covering reinforcement, discrete trial teaching, chaining, prompting, generalization, shaping, and token economies.
Does Ethics count for much on the RBT exam?
Yes. Ethics accounts for 11 of 75 scored questions (15%), the third largest domain, ahead of Documentation and Reporting and Behavior Assessment.
How long is the RBT exam?
Candidates have 90 minutes total to complete all 85 multiple-choice questions, each with 4 answer options and one correct answer.
Sources
- bacb.com, RBT Test Content Outline (3rd ed.), updated 09/2024
- bacb.com, Registered Behavior Technician Handbook (updated June 2026)
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