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The RBT exam has 85 multiple-choice questions, made up of 75 scored questions and 10 unscored questions. Per the RBT Handbook, each item has 4 possible answers and only 1 correct answer, and candidates have 90 minutes for the appointment screens, exam navigation tutorial, questions, and review.
Official exam count#
The facts table separates the total appointment format from the scored content outline.
| Question-count fact | Current value | BACB source |
|---|---|---|
| Total exam items | 85 multiple-choice questions | RBT Handbook, What to Expect |
| Scored items | 75 scored questions | RBT Handbook, Examination Outline |
| Unscored pilot items | 10 unscored questions | RBT Handbook, What to Expect |
| Answer format | 4 possible answers and only 1 correct answer | RBT Handbook, Examination Outline |
| Time allowed | 90 minutes including tutorial, terms, load prompt, questions, and review | RBT Handbook, What to Expect |
| Language | The RBT examination is only offered in English. | RBT Handbook, What to Expect |
| Delivery | in person at authorized Pearson VUE testing sites and US military bases | RBT Handbook, Scheduling |
Facts on this page were checked against the RBT Handbook updated 06/2026, the RBT Test Content Outline (3rd ed.) updated 09/2024, and the BACB Examination Information page retrieved 2026-10-01.
The rbt exam hub connects question count with scheduling, cost, scoring, and content-outline pages when a candidate needs the full testing sequence rather than one exam-format fact.
Why total and scored counts differ#
The RBT Handbook states that the exam includes scored and unscored questions. The RBT Test Content Outline calls the unscored items pilot questions; the RBT Handbook still requires candidates to answer the full 85-question appointment.
That split matters for practice. A practice set may choose to imitate the full appointment length or the scored outline, but the label should be clear. A full-length rbt mock exam should explain whether its score report treats every practice item as scored or reserves items for review practice.
The BACB scoring rule also limits what can be said about "how many questions can you get wrong." The RBT Handbook says all scored questions are equally weighted and results are based on overall exam performance. It also says the BACB uses the modified Angoff method to set the passing score. A practice percentage can guide review, but it is not a BACB passing rule.
Official scored-exam weights#
The official domain table shows how the scored portion is allocated in the RBT Test Content Outline (3rd ed.).
| TCO domain | Official scored questions | Official rounded percent |
|---|---|---|
| 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% |
The practice questions on this page are a short format check, not a miniature version of the official blueprint.
| Practice tag on this page | Domain | Item count here |
|---|---|---|
| A.6 | Data Collection and Graphing | 1 |
| F.6 | Ethics | 2 |
Myths on other sites#
The myths table corrects common count and format claims without naming or linking the sites that repeat them.
| Wrong claim | Current fact | Source |
|---|---|---|
| The exam uses a public scaled score with a fixed cut number. | The RBT Handbook describes a pass/fail result set by the modified Angoff method; no public scale is published. | RBT Handbook, Scoring Methodology |
| The exam is only the scored portion. | The RBT Handbook lists 85 multiple-choice questions, including scored and unscored items. | RBT Handbook, What to Expect |
| A practice percentage tells exactly how many misses are allowed. | The BACB publishes the scoring method, not a fixed passing percentage. | RBT Handbook, Scoring Methodology |
| The current RBT exam can be taken at home. | The RBT Handbook says delivery is in person at authorized Pearson VUE testing sites and US military bases. | RBT Handbook, Scheduling |
Timing is the next practical constraint after item count. The how long is the rbt exam guide breaks down the same clock rule, including why the tutorial and terms screens belong inside the appointment time.
What to do with the count while studying#
Use the total count for full-length pacing and the scored outline for content review. A candidate who practices only isolated terms may know definitions but miss the mixed scenarios that appear when measurement, teaching procedures, documentation, and ethics are combined.
Question count should not become a guessing formula. After an unsuccessful attempt, the next decision is governed by the retake rule, not by a self-calculated cutoff; the how many times can you take the rbt exam page covers the wait period and attempt limit.
Test-day logistics should be settled before the final practice week. The what to bring to rbt exam checklist helps candidates avoid turning a known question count into a check-in problem.
Practice items#
These original items connect the exam-format facts above to the kinds of TCO decisions candidates still have to make. They are not real BACB exam questions.
1. During review, Lena answers 60 of 75 scored-format practice questions correctly. Which summary should she record?
A Seventy percent would understate the result because 60 divided by 75 is higher.
B Seventy-five percent would match a smaller correct count, not 60 of 75.
C Correct. Sixty divided by 75 equals 0.80, or 80 percent, for practice review only.
D Eighty-five percent would overstate the result and should not be used as a BACB cutoff.
2. A clinic profile draft says RBT candidates can take the certification exam online at home. Nia is asked to review the wording before it is posted. Which edit is best?
A Online-at-home testing would misstate the RBT Handbook delivery rule and conflict with RBT Ethics Code 2.0 standard 1.05 on false or misleading statements.
B Correct. The RBT Handbook says the exam is delivered in person, and RBT Ethics Code 2.0 standard 1.05 requires accurate credential and service-related statements.
C Clinics do not decide BACB examination delivery, so this edit would leave a misleading public statement.
D Removing every exam detail avoids one error but is less accurate than replacing the sentence with the sourced delivery rule.
3. Riya updates a clinic profile after certification and wants to mention her exam experience. Which wording best fits the ethics rule?
A The RBT Handbook says the exam is delivered in person, so this wording would misstate the format.
B Practice scores do not guarantee BACB exam results or establish a public passing rule.
C An exam result does not prove client service outcomes.
D Correct. RBT Ethics Code 2.0 standard 1.05 prohibits false, misleading, or exaggerated statements, so an accurate credential statement is the safest wording.
FAQ
How many questions are on the RBT certification exam?
The RBT certification exam has 85 multiple-choice questions. The RBT Handbook explains that the total includes 75 scored questions and 10 unscored questions.
How many questions does the RBT exam have that count?
The scored portion has 75 scored questions. Candidates still answer the full 85-question appointment, which includes the unscored pilot items described by the RBT Test Content Outline.
Is the RBT exam all multiple choice?
Yes. The RBT Handbook says each question has 4 possible answers and only 1 correct answer. The BACB Examination Information page also describes BACB exams as multiple-choice examinations.
How many questions can you get wrong on the RBT exam?
The BACB does not publish a fixed number of misses allowed. The RBT Handbook states that pass/fail result; passing score set by the modified Angoff method; no percentage published, so practice-score targets should be treated as study signals.
Does the RBT exam clock include the tutorial?
Yes. The RBT Handbook says the 90 minutes allocation includes terms and conditions, the navigation tutorial, the load prompt, the examination, and review.
Sources
- RBT Handbook, updated 06/2026, Examination Outline, Scheduling, What to Expect, and Scoring Methodology sections.
- RBT Test Content Outline (3rd ed.), updated 09/2024, overview and domain weights.
- BACB Examination Information, examination format and delivery notes, retrieved 2026-10-01.