ABA Exam CoachHow to study for a BCBA retake
A retake plan isn't your first plan done again for longer. The BACB's 2025 figures show 23% of retake candidates passed, against 51% of first-time candidates. The candidates who turn a fail into a pass usually change how they study, not just how much.
This guide is the method: find out why you lost marks, put your hours where they count, and check your progress with questions you haven't seen. If you've only just had your result, start with what to do after a fail and come back when you're ready to plan.
Step 1: Work out why you lost marks
Your score report tells you where you lost marks. It doesn't tell you why. Before you plan, take 40 or so fresh, mixed questions (our free diagnostic works) and sort every miss into one of three buckets:
| Type of miss | What it looks like | What fixes it |
|---|---|---|
| Knowledge gap | You didn't know the concept, or mixed it up with a close neighbour | Relearn the concept, then practise it in new wording |
| Application gap | You knew the definition but couldn't spot it in a scenario | Lots of scenario questions, explaining each answer out loud |
| Reading error | Missed NOT, FIRST or MOST, or answered your clinic's way instead of the question's | Slower stem reading and timed practice |
Mark one more thing: were you confident? A confident wrong answer is the most important kind to fix, because you won't review what you think you know.
Most retakers find their misses aren't all one type. That's why "do more questions" alone often fails: it treats reading errors and knowledge gaps the same.
Step 2: Rank the content areas by size × gap
The nine content areas differ a lot in size. These are the scored question counts from the BACB's 6th edition outline:
| Area | Questions |
|---|---|
| G. Behavior-Change Procedures | 25 |
| B. Concepts and Principles | 24 |
| F. Behavior Assessment | 23 |
| E. Ethical and Professional Issues | 22 |
| C. Measurement, Data Display, and Interpretation | 21 |
| H. Selecting and Implementing Interventions | 20 |
| I. Personnel Supervision and Management | 19 |
| D. Experimental Design | 13 |
| A. Behaviorism and Philosophical Foundations | 8 |
For each area, take your score-report percentage and work out roughly how many questions you missed: questions × (100 − your %) ÷ 100. Sort the areas by that number. The top three get most of your extra time.
Example: 60% in G is about 10 questions missed. 50% in A is about 4. G comes first, even though A's percentage is lower.
The free retake planner does this sum for you and builds a day-by-day plan.
Step 3: Keep every area moving
The BACB itself warns against studying only the areas you did badly in: you "might perform better on those areas but worse on others." Your pass is decided by your overall score, not by area.
So split your week roughly like this:
- About 60% on your top three areas from Step 2
- About 25% on mixed sets across all nine areas
- About 15% reviewing your error log
Step 4: A 6-week retake cycle
This assumes 8 to 12 hours a week. Stretch each phase if you have fewer hours or more ground to cover.
| Week | Focus |
|---|---|
| 1 | Diagnose (Step 1). Rank areas (Step 2). Relearn your top area's core concepts. |
| 2 | Top area: short targeted sets. Second area: relearn. Mixed set at the weekend. |
| 3 | Second and third areas. First timed mock at the end of the week. |
| 4 | Review the mock, re-rank, and work on what it showed. |
| 5 | Weakest remaining areas. Second timed mock. |
| 6 | Mixed timed sets, error-log review, then easy final days. |
The 30-day minimum wait between attempts is shorter than this. That's fine: book when the evidence says you're ready, not when the rules first allow it. See the retake rules for the wait, attempt limit and fees.
Step 5: Review so the same mistake can't happen twice
For each miss, write one line in an error log:
- the concept,
- why the right answer is right,
- why your answer was wrong, and
- a short rule for next time, such as "Did the behavior go up or down? That decides reinforcement vs punishment."
Look again at the guesses you got right. They're the misses you haven't made yet.
Re-read the log weekly. When a concept appears three times, go back to its lesson rather than doing more questions on it.
Step 6: Check progress with fresh questions
Scores on questions you've already seen mostly measure memory. To check real progress, use questions you haven't answered before and note them by area. You're ready to book when your recent fresh, timed sets are steady across all nine areas, not just high on a good day.
FAQ
How long should I study for a BCBA retake? Most retakers need longer than the 30-day minimum. If you're close in most areas, 6 to 8 weeks at 8 to 12 hours a week is a common plan. With several weak areas, plan for longer.
Should I only study the areas I failed? No. Give your weakest high-question areas the most time, but keep every area in your weekly mix. The BACB advises studying all the content.
Should I use the same materials as last time? Use whatever gives you fresh questions with clear explanations for every option, weighted to the 6th edition outline. Repeating the same question bank mostly tests memory.
What if I keep running out of time on the exam? Treat it as its own problem. Practise timed sets at about 78 seconds a question. Our exam day guide has pacing checkpoints.
Sources
- BACB, Examination Information: https://www.bacb.com/examination-information/ (2025 first-time and retake pass rates, score report contents, advice to study all content)
- BACB, Board Certified Behavior Analyst Handbook (updated 06/2026): https://www.bacb.com/wp-content/uploads/2025/08/BCBAHandbook_260529-2-a.pdf (result based on overall performance, 30-day wait, retake rules)
- BACB, BCBA Test Content Outline (6th ed.): https://www.bacb.com/wp-content/bcba-outline-6thEd (questions per content area)