RBT Exam PrepThe short answer: In 2025, 109,341 people took the RBT exam for the first time and 75% passed. Another 54,674 were retaking it, and only 38% of retakers passed. The takeaway is blunt: pass it the first time, because the second attempt is dramatically harder to clear.
The 2025 numbers
| Group | Takers in 2025 | Pass rate |
|---|---|---|
| First-time takers | 109,341 | 75% |
| Retakers | 54,674 | 38% |
Three out of four first-timers pass, which means the exam is very passable with real preparation. But look at the retake column: more than 54,000 people came back for another attempt, and fewer than 4 in 10 cleared it. Retaking is not just a second chance, it is a much steeper hill.
Why do retakers pass at half the rate?
The BACB does not publish reasons, but the pattern is consistent across certification exams:
- Same study methods, same result. Most retakers re-read the same materials that did not work the first time instead of switching to active practice.
- Confidence damage. Failing once makes the second attempt feel heavier, and test anxiety rises.
- Memorization over application. The exam tests whether you can APPLY concepts to scenarios, not whether you can recite definitions. Passive review does not build that skill.
- Skipping timed practice. Ninety minutes for 85 questions punishes slow, careful re-reading. If you never practiced under the clock, the clock beats you.
How the scoring works
The exam has 85 questions but only 75 are scored. The other 10 are unscored pilot questions the BACB is testing for future exams. You cannot tell which is which, so every question gets your best effort. Your result is a simple pass or fail, delivered before you leave the testing center. The BACB uses multiple exam forms calibrated to comparable difficulty, so your version may differ from someone else's.
The BACB does not publish an official cut score, which is exactly why you should aim well above the minimum. A comfortable practice target is 80% or higher on full-length timed runs.
How to land in the 75%
- Study to the 3rd edition outline weights. Skill acquisition is about a quarter of the exam. Weight your time accordingly. See our outline breakdown.
- Practice with scenarios, not flashcards alone. The exam asks what you would DO. Ten-scenario quizzes beat ten-definition reviews.
- Go timed early. Take full 85-question, 90-minute runs before exam day so the clock feels normal.
- Fix your misses by domain. Track which of the 6 domains leaks points and drill those specifically.
Start with our free RBT practice test to get an honest baseline, then build from there.