How Hard Is the RBT Exam? Pass Rates and What They Mean (2026)

Figures from the BACB’s Historical RBT Examination Results (bacb.com/examination-information/) and RBT Handbook (updated June 2026), as of September 2026.

As of September 2026, the BACB’s own published data puts the RBT exam’s 2025 first-time pass rate at 75%, based on 109,341 candidates tested, while the retake pass rate for that same year was 38%, based on 54,674 candidates tested. That nearly 2-to-1 gap between first-time and retake performance has held every year the BACB has published this data back through 2021. Candidates get 85 questions, 75 scored and 10 unscored questions, to answer in 90 minutes at a Pearson VUE testing center, with a required 7-day wait and up to 8 total attempts inside a 12-month authorization window if a retake is needed. First-time pass rates themselves have shifted over time too, moving from 83% in 2021 down to 73% in 2024 before recovering to 75% in 2025, even as the number of candidates tested each year more than doubled. This guide walks through what the BACB’s published pass rate history actually shows, year by year, and what the numbers mean for someone preparing for a first attempt versus a retake.

What the BACB’s Pass Rate Data Actually Shows

The BACB publishes a Historical RBT Examination Results table on its Examination Information page, broken out separately for first-time test takers and retake test takers, by year. As of September 2026, the most recent full year on record is 2025.

Two patterns stand out in this data on the BACB’s own terms. First, first-time pass rates declined from 83% in 2021 to a low of 73% in 2024, before ticking back up to 75% in 2025, even as the number of candidates tested each year grew substantially, from 43,452 in 2021 to 109,341 in 2025. Second, the gap between first-time and retake performance is consistent and large: retake pass rates have been roughly half of first-time pass rates in every year shown, from a high of 53% in 2021 down to 36% in 2024 and 38% in 2025.

What Makes the Format Itself Demanding

Independent of pass rate trends, the exam’s own structure sets real constraints. Candidates answer 85 multiple-choice questions, 75 of which are scored and 10 of which are unscored pilot items mixed in without being identified, in a single 90-minute sitting. By our arithmetic, that works out to roughly 63 seconds per question on average if a candidate uses the full time evenly, though the exam is not divided into timed sections, so pacing across all 6 content areas is left entirely to the candidate. Each question carries 4 answer choices and one correct answer, and the exam draws from the RBT Test Content Outline (3rd ed.), with Behavior Acquisition weighted heaviest at 19 of 75 scored questions (25%), covering reinforcement, teaching procedures, prompting, and generalization. See our domain-by-domain breakdown for the full weighting across all 6 content areas.

What the Retake Rules Mean If You Do Not Pass

The BACB’s retake policy gives candidates real room to try again without starting over from eligibility. A candidate who does not pass can retake the exam up to 8 total times within the 12-month authorization period that begins when the certification application is approved, with a required minimum wait of 7 days between attempts, and currently no separate BACB fee to submit the retake application itself. A retake still carries the standard $45 Pearson VUE exam appointment fee. Full detail on that process is in our RBT retake policy guide.

Reading the Gap Correctly

The BACB publishes these two figures side by side but does not publish an explanation for the gap between them, and this guide does not speculate about causes it cannot verify. What the numbers show, on the BACB’s own authority, is that a first attempt and a subsequent attempt have historically produced very different outcomes, every year the data has been published. Neither figure is a guarantee of any individual candidate’s result; they are aggregate historical rates reported by the certifying body itself.

Working through content across all six domains, at the same weighting the real exam uses, before a first attempt is the most direct way to prepare against a published pass rate rather than against a guess. Try our RBT practice test to work through original questions across every content area, or start with a free RBT practice test to check your baseline first.

Frequently Asked Questions

What is the RBT exam pass rate?

Per the BACB’s published Historical RBT Examination Results, the 2025 first-time pass rate was 75% across 109,341 candidates tested, and the 2025 retake pass rate was 38% across 54,674 candidates tested.

Why is the retake pass rate so much lower than the first-time pass rate?

The BACB publishes both figures but does not publish a stated reason for the gap. The pattern, roughly half the first-time rate, has held in every year of published data from 2021 through 2025.

How many questions are on the RBT exam and how long do you have?

85 total questions, 75 scored and 10 unscored pilot items, to be completed in 90 minutes at a Pearson VUE testing center.

How many times can you retake the RBT exam if you do not pass?

Up to 8 total attempts within the 12-month authorization period following application approval, with a required 7-day wait between attempts.

Sources

• bacb.com, Examination Information, Historical RBT Examination Results
• bacb.com, Registered Behavior Technician Handbook (updated June 2026)
• bacb.com, RBT Test Content Outline (3rd ed.), updated 09/2024

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