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An RBT is recording every instance of a child saying a word during a 30-minute session. Which measurement system is being used?

Momentary time sampling

Whole interval recording

Frequency (event) recording

Duration recording

to track

2026 Statistics

Key Facts: RBT Exam

Total Questions

BACB RBT Handbook (01/2026)

75+10

Scored + Pilot

BACB RBT Handbook

90 min

Exam Time

BACB RBT Handbook

200/300

Passing Score

BACB scaled scoring

$95

Total Exam Fee

BACB + Pearson VUE

2026

TCO 3rd Edition

BACB RBT Test Content Outline

The RBT examination includes 75 scored questions and 10 unscored pilot questions, for 85 total items in a 90-minute window delivered through Pearson VUE. The RBT Test Content Outline (3rd ed.) organizes the exam into 6 content areas: Data Collection and Graphing (17%), Behavior Assessment (11%), Behavior Acquisition (25%), Behavior Reduction (19%), Documentation and Reporting (13%), and Ethics (15%). Passing requires a scaled score of 200 out of 300.

Sample RBT Practice Questions

Try these sample questions to test your RBT exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 200+ question experience with AI tutoring.

1An RBT is recording every instance of a child saying a word during a 30-minute session. Which measurement system is being used?

A.Momentary time sampling

B.Whole interval recording

C.Frequency (event) recording

D.Duration recording

Explanation: Frequency (event) recording involves counting each discrete occurrence of a behavior as it happens. It is best used with behaviors that have a clear beginning and end. Momentary time sampling and interval recording only sample behavior at specific points or intervals rather than capturing every occurrence.

2An RBT starts a timer when the supervisor gives a "clean up toys" instruction and stops the timer when the client begins picking up a toy. Which measurement dimension is being recorded?

A.Duration

B.Latency

C.Interresponse time

D.Rate

Explanation: Latency measures the elapsed time between the onset of an antecedent stimulus (the instruction) and the beginning of the response. Duration measures how long a behavior lasts from start to finish, while interresponse time measures the time between two consecutive responses of the same behavior.

3A supervisor asks an RBT to record data during a 20-minute observation by checking whether a target behavior is occurring exactly at the end of each 2-minute interval. Which procedure is the RBT using?

A.Whole interval recording

B.Partial interval recording

C.Momentary time sampling

D.Frequency recording

Explanation: Momentary time sampling requires the observer to check whether the behavior is occurring at the exact moment each interval ends. Whole interval recording scores a behavior only if it occurs throughout the entire interval, and partial interval recording scores a behavior if it occurs at any point during the interval.

4After a session, an RBT counts the number of math problems a student completed correctly on a worksheet. This is an example of which data collection method?

A.Duration recording

B.Partial interval recording

C.Permanent product recording

D.Latency recording

Explanation: Permanent product recording involves measuring the tangible outcomes or results of behavior rather than observing the behavior directly. Counting completed worksheets, assembled items, or written answers are classic examples. This method is convenient because data can be collected after the behavior has occurred.

5An RBT recorded the following frequency data for vocal stereotypy across five sessions: 12, 15, 10, 8, 6. Which trend best describes this data path?

A.Ascending (increasing) trend

B.Descending (decreasing) trend

C.Variable trend with no clear direction

D.Flat (stable) trend

Explanation: A descending trend means the data values are consistently moving downward over time. The sequence 12, 15, 10, 8, 6 shows an overall downward direction despite the slight increase at session 2, making descending the best descriptor. For a behavior targeted for reduction, a descending trend is the desired outcome.

6An RBT recorded 8 occurrences of hand-flapping during a 20-minute session. What is the rate of hand-flapping per minute?

A.0.4 per minute

B.1.6 per minute

C.2.5 per minute

D.160 per minute

Explanation: Rate is calculated by dividing the frequency count by the total observation time: 8 ÷ 20 = 0.4 occurrences per minute. Rate is the preferred measure when observation periods vary in length because it allows fair comparison across sessions of different durations.

7Two RBTs simultaneously and independently recorded the frequency of self-injurious behavior during a 10-minute observation. RBT 1 recorded 20 occurrences and RBT 2 recorded 16 occurrences. Using the smaller-over-larger method, what is the inter-observer agreement (IOA) percentage?

A.60%

B.72%

C.80%

D.90%

Explanation: The smaller-over-larger (total count) IOA formula divides the smaller count by the larger count and multiplies by 100: (16 ÷ 20) × 100 = 80%. IOA of 80% or higher is generally considered acceptable. IOA checks are conducted regularly to ensure data quality and observer consistency.

8A supervisor reviews a graph of a client's on-task behavior and sees that data points over the last two weeks range from 20% to 85% with no consistent direction. The supervisor asks the RBT to examine possible causes. Which term BEST describes this data pattern, and what is one common reason for it?

A.Stable trend; the behavior has plateaued due to effective intervention

B.Ascending trend; the intervention is beginning to work

C.Variable trend; inconsistent implementation of the intervention procedure may be contributing

D.Descending trend; extinction is causing a temporary increase in variability

Explanation: High variability (wide swings in data without a clear direction) is described as a variable trend and often signals inconsistent treatment implementation, changes in client health or motivation, or procedural drift. When variability is high, supervisors investigate procedural fidelity before drawing conclusions about intervention effectiveness.

9A supervisor asks an RBT to present a client with two food items at a time, record which one the client selects, remove it, and then pair each remaining item with every other remaining item. Which preference assessment is the RBT conducting?

A.Free operant observation

B.Single stimulus presentation

C.Paired stimulus (forced choice) assessment

D.Multiple stimulus without replacement (MSWO)

Explanation: The paired stimulus (forced choice) assessment presents items two at a time; the selected item is removed and the remaining items are systematically paired until a preference hierarchy is established. MSWO presents all items simultaneously and removes the chosen item before re-presenting the remaining items. Free operant observation simply tracks what the client naturally contacts in an unrestricted environment.

10An RBT is asked to place five preferred items on a table, allow the client to choose one, remove the chosen item, shuffle the remaining items, and repeat until all items have been chosen. Which preference assessment method is this?

A.Multiple stimulus without replacement (MSWO)

B.Paired stimulus (forced choice)

C.Free operant observation

D.Single stimulus presentation

Explanation: Multiple Stimulus Without Replacement (MSWO) presents an array of items simultaneously, removes the chosen item after each selection, reshuffles the remaining items, and continues until all items have been selected or a set number of trials is complete. This produces a preference hierarchy more efficiently than the paired stimulus method.

About the RBT Exam

The RBT exam assesses whether candidates have the knowledge and skills to implement ABA-based services under BCBA supervision. Based on the RBT Test Content Outline (3rd ed., effective 2026), it covers data collection, preference and functional assessments, skill acquisition, behavior reduction, documentation, and professional ethics.

Questions

75 scored questions

Time Limit

90 minutes

Passing Score

200/300 (scaled score)

Exam Fee

$95 ($50 application + $45 exam appointment) (BACB / Pearson VUE)

RBT Exam Content Outline

25%

Behavior Acquisition

DTT, naturalistic teaching, prompting strategies, chaining, reinforcement schedules, token economies, and generalization

19%

Behavior Reduction

Antecedent interventions, differential reinforcement, extinction, punishment procedures, and crisis prevention

17%

Data Collection and Graphing

Continuous and discontinuous measurement, permanent product recording, data entry, graphs, and trend analysis

15%

Ethics

Scope of practice, confidentiality, supervisory relationships, dual relationships, and professional conduct

13%

Documentation and Reporting

Session notes, reporting changes, incident documentation, and communication with supervisors

11%

Behavior Assessment

Preference assessments (MSWO, paired stimulus, free operant), skill assessments, and FBA support

How to Pass the RBT Exam

What You Need to Know

Passing score: 200/300 (scaled score)
Exam length: 75 questions
Time limit: 90 minutes
Exam fee: $95 ($50 application + $45 exam appointment)

Keys to Passing

Complete 500+ practice questions
Score 80%+ consistently before scheduling
Focus on highest-weighted sections
Use our AI tutor for tough concepts

RBT Study Tips from Top Performers

1Master the six content domains proportionally — weight Behavior Acquisition (25%) and Behavior Reduction (19%) most heavily in your prep

2For Data Collection, practice calculating rate, mean duration, IOA, and percentage correct — expect calculations on the exam

3Know your reinforcement schedules (FR, VR, FI, VI, CRF) and when to use each during acquisition vs. maintenance

4For Ethics, read the RBT Ethics Code 2.0 directly — the exam tests specific Code language, not just general concepts

5Practice identifying the function of behavior (attention, escape, tangible, sensory) before selecting a behavior reduction strategy

6For preference assessments, know the procedural differences: paired stimulus removes nothing; MSWO removes the chosen item and re-randomizes

Frequently Asked Questions

How many questions are on the RBT exam?

The RBT exam has 85 total questions: 75 scored questions and 10 unscored pilot questions. You cannot tell which questions are unscored, so treat every question as if it counts.

How long is the RBT exam?

Candidates have 90 minutes to complete the exam. This includes the time for reviewing Terms and Conditions, the navigation tutorial, and the exam itself. Average pace is about 1 minute per question.

What score do I need to pass the RBT exam?

The BACB uses a scaled scoring system (100-300). The passing score is 200. BACB does not publish the exact number of raw questions needed to pass, as it varies slightly by exam form. Aim for at least 80% correct on practice exams.

What changed with the 2026 RBT exam?

The RBT exam is now based on the RBT Test Content Outline (3rd ed.), which took effect in 2026. The 3rd edition updated content area weights and tasks based on a 2023 job task analysis. It also introduced the 2026 40-Hour Training Requirements, and RBT recertification cycles changed from 1 to 2 years.

What is the RBT exam fee?

The total cost is approximately $95: a $50 BACB application processing fee plus a $45 Pearson VUE exam appointment fee. Fees are subject to change; always verify on the BACB website.

What are the requirements to take the RBT exam?

You must be at least 18 years old, have a high school diploma or equivalent, complete the BACB-approved 40-hour training, pass the Initial Competency Assessment conducted by a BCBA or BCaBA, and submit a certification application with a clean background check.