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The RBT behavior assessment study guide covers Domain B of the BACB RBT Test Content Outline (3rd ed.): preference assessments, skill assessment participation, and functional assessment participation. The TCO assigns Behavior Assessment 8 scored questions out of 75 scored questions.
Start Here#
Start with the main rbt study guide when Behavior Assessment is one part of a full exam plan. The parent guide shows how Domain B fits between data collection, acquisition, reduction, documentation, and ethics.
Study preference assessment first because many teaching and reduction examples depend on identifying items or activities that may function as reinforcers. The preference assessment aba page breaks down paired-stimulus, multiple-stimulus, and free-operant formats before mixed Domain B practice.
Behavior Assessment connects to teaching because skill assessments can identify what a learner already does independently and what still needs instruction. Use the rbt behavior acquisition study guide when a study scenario shifts from assessment participation to prompts, chaining, shaping, or reinforcement during teaching.
Functional assessment concepts lead into behavior-reduction decisions, but Domain B stops at participation in assessment procedures. Review the rbt behavior reduction study guide when the question moves from gathering assessment information to implementing antecedent, reinforcement, extinction, punishment, or crisis procedures.
Assessment data still need accurate recording. The rbt data collection and graphing study guide helps separate the assessment purpose from the measurement rule, graph update, or data-quality issue in the same scenario.
Domain Weight#
The RBT Test Content Outline (3rd ed.) lists Behavior Assessment as Domain B with 8 scored questions, or 11% of the scored exam, and the RBT Handbook says the exam includes 75 scored questions plus 10 unscored questions.
The table below shows official scored-exam weights from the RBT Test Content Outline (3rd ed.), not the four-question practice allocation on this page.
| Domain | Official scored-exam allocation |
|---|---|
| A. Data Collection and Graphing | 13 scored questions (17%) |
| B. Behavior Assessment | 8 scored questions (11%) |
| C. Behavior Acquisition | 19 scored questions (25%) |
| D. Behavior Reduction | 14 scored questions (19%) |
| E. Documentation and Reporting | 10 scored questions (13%) |
| F. Ethics | 11 scored questions (15%) |
Coverage Map#
The map below turns each Domain B task from the RBT Test Content Outline (3rd ed.) into a study decision for practice scenarios.
| Task | Page | Official task wording | Original practice focus |
|---|---|---|---|
| B.1 | Preference assessments | Conduct preference assessments such as multiple stimulus, paired stimulus, and free operant. | Identify the assessment format, follow the presentation rule, and record selections or engagement accurately. |
| B.2 | B.2 skill assessment participation | Participate in assessments of relevant skill strengths and deficits, including curriculum-based, developmental, and social skills. | Sort assigned probes, performance records, and assessor-selected materials into skill assessment participation. |
| B.3 | B.3 functional assessment participation | Participate in components of functional assessment procedures, including descriptive assessment and functional analysis. | Distinguish interviews or records, ABC-style descriptive data, and arranged test conditions without independently naming a final function. |
Worked Sorting Example#
The example below shows how similar assessment scenarios sort into different Domain B tasks.
| Scenario detail | Best Domain B label | Why that label fits |
|---|---|---|
| The RBT presents toys two at a time and records which item a learner selects across trials. | B.1 preference assessment | The procedure compares potential reinforcers by recording selections. |
| The RBT presents matching, imitation, and listener-response tasks from a supervisor-selected protocol. | B.2 skill assessment participation | The procedure samples skill strengths and deficits rather than item preference or behavior function. |
| The RBT records what happened before and after aggression during recess. | B.3 functional assessment participation | ABC-style descriptive data are a component of functional assessment procedures. |
| The supervisor arranges brief attention and demand conditions while the RBT follows the assigned role. | B.3 functional assessment participation | Functional analysis is listed under B.3 in the TCO; the RBT participates under direction. |
What To Know First#
Preference assessment is the cleanest starting point. Paired-stimulus formats compare two options, multiple-stimulus formats present several options, and free-operant formats observe engagement when options are available. For original practice, treat the format and recording rule as the study target, not a promise that an item will work forever as a reinforcer.
Skill assessment participation is different from teaching. Study examples can include a protocol, probe, checklist, curriculum-based task, developmental item, social-skill sample, independent response, prompt level, or error record. The RBT role is to follow the assigned procedure and record what occurred.
Functional assessment participation asks why behavior may be occurring, but a study scenario may focus on one component. Indirect information, descriptive ABC data, and arranged test conditions are not the same procedure. For RBT-level study, the safest distinction is to name the component shown and avoid treating one observation as a clinical conclusion.
Scope And Freshness#
Facts on this page were checked against the official BACB routes for the RBT Test Content Outline (3rd ed., updated 09/2024), the RBT Handbook (updated 06/2026), and the RBT Ethics Code 2.0 (updated 08/2024). The TCO states that Domain B is Behavior Assessment and lists tasks B.1, B.2, and B.3; the handbook supplies the exam item structure used for context.
This page is educational exam preparation, not clinical assessment guidance. The RBT Ethics Code 2.0 says RBTs work under close supervision and must follow applicable laws and employer requirements, so real preference, skill, and functional assessment procedures depend on the supervising professional's written plan, training, materials, consent requirements, and workplace rules.
Practice Items#
These original questions sample B.1, B.2, and B.3 without using BACB exam content; the four-item set is page practice, not the official Domain B exam allocation.
1. The RBT places six leisure items on a table, lets Mara choose one, removes the chosen item, and rearranges the remaining items before the next trial. Which format best matches the procedure?
A Correct. Multiple-stimulus without replacement presents several options and removes the selected item after each choice.
B Paired-choice checks compare two options at a time, not a set of several items.
C Free-operant checks observe engagement with available options rather than removing one after each choice.
D Skill probes sample performance on tasks, not selection among possible reinforcers.
2. A supervisor gives Priya an assessment kit and asks her to present imitation, matching, and listener tasks while marking independent and prompted responses. Which role is Priya filling?
A Reducing behavior rate would belong to behavior-reduction procedures, not task probes for strengths and deficits.
B Correct. B.2 covers participation in assessments of relevant skill strengths and deficits.
C Testing behavior function would involve functional assessment components, not a skill protocol.
D Public statements are an ethics topic and do not match assigned assessment-kit probes.
3. During recess, Leila records what happened right before hitting, the exact hitting response, and what followed afterward. Which assessment component is shown?
A Skill probe scoring records performance on skill tasks, not antecedent-behavior-consequence events.
B Preference item trials compare or observe potential reinforcers, which the scenario does not show.
C Correct. ABC recording is descriptive data used as a component of functional assessment procedures.
D Maintenance checks test whether a learned skill continues after teaching.
4. Under the BCBA's direction, an RBT helps prepare materials while brief attention, demand, and play conditions are arranged to compare behavior patterns. Which Domain B area fits best?
A Skill deficit probes sample current abilities, not behavior across arranged test conditions.
B Free-operant preference assessment observes engagement with available items, not behavior patterns across conditions.
C Graph updating may happen later, but the described assessment activity is not data entry.
D Correct. B.3 includes participating in components of functional assessment procedures, including functional analysis.
Continue your study path
RBT Task B.2 Skill Assessment Participation: Examples: RBT task B.2 skill assessment participation explained with official scope, scenario sorting, study mistakes, and five original practice questions.
FBA in ABA: Definition, Examples & RBT Practice: FBA explained for RBT task B.3: functional behavior assessment components, study decisions, study mistakes, and five original practice questions.
Preference Assessment ABA: Types, Examples & RBT Questions: Preference assessment ABA guide for RBT task B.1: types, data rules, a worked sequence, study mistakes, and five practice questions.
Pages in this hub
Behavior Assessment
- RBT Task B.2 Skill Assessment Participation: Examples
RBT task B.2 skill assessment participation explained with official scope, scenario sorting, study mistakes, and five original practice questions. Tasks: B.2.
- FBA in ABA: Definition, Examples & RBT Practice
FBA explained for RBT task B.3: functional behavior assessment components, study decisions, study mistakes, and five original practice questions. Tasks: B.3.
- Preference Assessment ABA: Types, Examples & RBT Questions
Preference assessment ABA guide for RBT task B.1: types, data rules, a worked sequence, study mistakes, and five practice questions. Tasks: B.1.
FAQ
What is Behavior Assessment on the RBT exam?
Behavior Assessment is Domain B of the BACB RBT Test Content Outline (3rd ed.). The domain covers conducting preference assessments, participating in skill assessments, and participating in functional assessment components.
How many scored questions are in Domain B?
The RBT Test Content Outline (3rd ed.) lists Behavior Assessment as 8 scored questions, and the RBT Handbook says the exam includes 75 scored questions plus 10 unscored questions.
What should I study first for Behavior Assessment?
Study preference assessment formats first, then skill assessment participation, then functional assessment components. That order keeps "what the learner may like," "what the learner can do," and "why behavior may occur" separate.
Is functional assessment the same as behavior reduction?
No. Functional assessment participation belongs to Domain B, while behavior-reduction procedures belong to Domain D. Assessment information may guide a plan, but RBT study scenarios should separate gathering information from implementing the written reduction procedure.