Start with an easy question.
End exam‑ready.
One short session a day, weighted like the real exam, with spaced review that brings back what you need.
FreeNo account281 questions230 terms
Practice termsFour quick games, no plan neededStep 1 of 3 · Intake
A few questions first.
This builds the plan you'd actually see on day one — takes about 15 seconds.
Games
Game
All terms
Tap a card to see its definition.
No terms match that search.
How Shaping works
Everything behind the daily session, for anyone curious. None of it is needed to study.
A plan weighted like the real exam
A 90-day curriculum, weighted like the real exam
Each of the nine BCBA Test Content Outline domains gets a share of study days proportional to its share of the actual exam — so Behavior-Change Procedures gets more daily attention than, say, Philosophical Foundations, instead of every domain being treated equally.
Each session mixes a few new questions with review. Questions you miss come back the next day; ones you get right come back after 1, 3, 7, 14, then 30 days, so review thins out as you learn. The last stretch is exam prep across all domains at real exam pace, ending with a full-length timed mock.
Daily time builds as you go
Daily time builds as you go
The shaping curve
The shaping curve
Every concept starts at Tier 1 the day it's introduced — even on day 85. It's re-tested on a spaced schedule, and each time it resurfaces it climbs a tier, until it reaches full exam difficulty well before test day.
Tier 1 — Recall
Direct definition or matching. First exposure to any term, no matter when it's introduced.
Tier 2 — Identify
A short one-step scenario. Reached on the +3 and +7 day spaced reviews.
Tier 3 — Apply
Multi-step, exam-level reasoning. Reached by the +14/+30 day reviews and held through the closing mock exam.
Term cards
A lighter track alongside the daily quiz. Each day has a handful of short terms: earlier ones coming back 2, 7 and 21 days after you first saw them, then new ones from what you’re studying. They show after each session, and any time on the Practice page, along with four games and the whole deck, no quiz needed. A term counts as mastered once you’ve got it right in the games on two different days, with no miss since.
Practice that leans toward your weak spots
Every plan starts from each domain’s share of the real exam, then adjusts to how you’re doing. Domains where your recent answers miss more get more of your review time. Two limits keep it balanced: across your plan, no domain gets less than half its exam share, so strong areas don’t fade, and in mixed sessions no domain takes more than a third of the questions. The final mock exam stays weighted exactly like the real one.
If you’re retaking, there’s no domain-by-domain pass. You can enter your last attempt’s percentage for each domain, and every session mixes all nine, starting heavier on your lower domains. Mixing topics in one session feels harder in the moment, but it tends to hold up better on exam day, because the exam asks you to tell similar ideas apart. Retakers can also pick a 4-week plan.
About, privacy & feedback
What this is
A free daily-practice study companion for the BCBA exam — one short session a day, weighted the way the real exam is. No accounts, no purchases, and no personal data collected — anonymous, cookieless page analytics only.
Content
All questions, explanations, and term cards are original writing, organized around the nine domains of the BACB's publicly published Test Content Outline.
Questions & feedback
Spot a wrong or unclear answer, have a suggestion, or need help with the site? Email shaping.study@gmail.com. Reports about specific questions are especially welcome — just mention the question code shown under its explanation.
Not affiliated
Shaping is not affiliated with, endorsed by, or sponsored by the Behavior Analyst Certification Board (BACB). BCBA® is a certification mark of the BACB.