The BCBA Pass Rate Just Hit 51%. Here's Where to Focus Your Study Time
By LaKeysha Cobbs-Hayes, MA, BCBA · Last reviewed 2026-10-14 · 9 min read
Only about half of first-time BCBA candidates passed in 2025. That's not a reason to panic, but it is a reason to stop studying the way most people do. Here's what the numbers show, what they don't, and how to build a study plan around how the exam is actually weighted.
What the BACB data show
The BACB publishes first-time pass rates every year. According to its historical examination results, the first-time pass rate has dropped steadily:
| Year | First-time candidates | First-time pass rate |
|---|---|---|
| 2021 | 12,107 | 60% |
| 2022 | 7,179 | 55% |
| 2023 | 8,255 | 56% |
| 2024 | 9,911 | 54% |
| 2025 | 9,955 | 51% |
The 51% figure for 2025 is the lowest the BACB has recorded. First-time rates were as high as 66% in 2020.
2025 was also the first year the exam was based on the BCBA Test Content Outline (6th ed.). The data can't tell us whether the new outline caused the drop, but if you're studying from 5th edition materials, you're preparing for an exam that no longer exists.
Where you trained matters
The BACB's 2025 university pass rate report included some findings worth knowing:
- The average program pass rate for ABAI-accredited programs was 79.3%, compared with 53.2% for all other reported programs.
- The 10 largest programs accounted for 54.7% of all first-time candidates, and their average program pass rate was 42.9%.
If you're still choosing a program, check its pass rate on the BACB's university pass rate page. If you've already finished, your program is behind you. What matters now is how you prepare.
A correction to a common claim
You may see posts that claim to show "pass rates by domain" or "which domains people fail most." The BACB doesn't publish that data. It reports overall and program-level pass rates. Be skeptical of any study resource that claims otherwise.
What the BACB does publish is exactly how many questions come from each domain. That's the most reliable information you have for planning your study time.
How the exam is weighted
The BCBA exam has 175 scored questions and 10 unscored pilot questions. Here's how the 6th edition Test Content Outline distributes the scored questions:
| Domain | Questions | Share of exam |
|---|---|---|
| A. Behaviorism and Philosophical Foundations | 8 | 5% |
| B. Concepts and Principles | 24 | 14% |
| C. Measurement, Data Display, and Interpretation | 21 | 12% |
| D. Experimental Design | 13 | 7% |
| E. Ethical and Professional Issues | 22 | 13% |
| F. Behavior Assessment | 23 | 13% |
| G. Behavior-Change Procedures | 25 | 14% |
| H. Selecting and Implementing Interventions | 20 | 11% |
| I. Personnel Supervision and Management | 19 | 11% |
Notice how even the weights are. No single domain is more than 14% of the exam. You can't pass by mastering two favorite domains and hoping for the best. Every domain needs real attention.
Where your time should go
I tell candidates to plan around two numbers for each domain: how much it's worth and how weak you are in it.
Step 1: Get a baseline. Take a full-length, timed mock exam before you build your plan. Record your accuracy in each domain.
Step 2: Find your point gaps. For each domain, multiply the number of questions by your error rate. For example, if you get 60% of Behavior-Change Procedures questions right, you're missing about 40% of 25 questions, which is 10 points. If you get 50% of Behaviorism questions right, you're missing about 4 points. The second domain looks worse, but the first one costs you more than twice as many points.
Step 3: Rank and assign. Put your largest point gaps first and give them most of your study time, but keep every domain in weekly rotation so nothing fades.
Step 4: Retest every two weeks. Use a domain-specific mock exam to see whether your plan is working. If a domain isn't improving, change how you study it, not just how long.
Domains people underestimate
These are patterns I've seen in candidates I've supported. They're not BACB data.
- Ethics (Domain E, 22 questions). People assume ethics is common sense. The exam tests specific code standards applied to unclear situations, and two answers often sound reasonable. Practice choosing the best response, not just an acceptable one.
- Personnel Supervision and Management (Domain I, 19 questions). Many candidates have never supervised anyone. These questions test behavioral skills training, performance feedback, and diagnosing performance problems, so study them as procedures, not as general advice.
- Experimental Design (Domain D, 13 questions). It's a small domain, but candidates often lose most of its points. Learn to recognize each design from a description and know what threat to internal validity each one controls.
The study method matters as much as the content
Knowing what to study is half the plan. The other half is how you study. Decades of learning research point the same way: practice testing and spaced practice outperform rereading and highlighting. For the BCBA exam, that means:
- More questions, fewer notes.
- Short daily sessions instead of weekend marathons.
- A written explanation for every missed question.
- At least two or three full-length, four-hour practice exams before test day.
Keep going with The ABA Playbook
Turn the domain weights into a plan you can follow.
- Practice. Run a domain-specific BCBA mock exam to find your biggest point gaps. The ABA Playbook adjusts your study plan as your weak areas change.
- Watch. Subscribe to The ABA Playbook on YouTube for BCBA concept breakdowns and scenario walkthroughs.
- Study with others. Join The ABA Playbook community on Skool. It's free, and you can bring your mock exam results, compare notes with other candidates, and get feedback from a BCBA who has been where you are.
References
- Behavior Analyst Certification Board. (2022). BCBA Test Content Outline (6th ed.).
- Behavior Analyst Certification Board. (2026). BCBA examination pass rates: 2025.
- Behavior Analyst Certification Board. (2026). Examination information: Historical BCBA examination results.
- Behavioral Health Business. (2026). What's driving BCBA exam pass rates to historic lows.
- Dunlosky, J., Rawson, K. A., Marsh, E. J., Nathan, M. J., & Willingham, D. T. (2013). Improving students' learning with effective learning techniques. Psychological Science in the Public Interest, 14(1), 4–58. https://doi.org/10.1177/1529100612453266
About the author
LaKeysha Cobbs-Hayes, MA, BCBA, is the founder of Key Essentials to Behavior Management and Strategic Behavior Consultants. She trains RBTs, supervisors, and clinic leaders and builds practical tools for the people doing the work.
Last reviewed October 14, 2026. Exam details change; always confirm current requirements with the BACB. The ABA Playbook is not affiliated with or endorsed by the Behavior Analyst Certification Board.