QBA Exam Prep: Study Guide, Practice Tests & Mock Exams

What the QBA exam covers

Your QBA prep is organised around the core task-list domains — so every study guide page and practice question maps to something you will actually be tested on.

What the QBA exam actually tests

QBA questions cover the same core principles you'd expect from any ABA credential, but the emphasis is on applying them consistently across very different service settings — clinic, home, and school — rather than deep single-subject design math.

Expect items that describe the same underlying principle playing out in different contexts and ask you to identify what stays the same and what has to change: a preference assessment run with limited materials in a family's home versus a full structured assessment in a clinic, or a behavior plan written so a caregiver with no clinical background can implement it consistently. Ethics and supervision questions lean the same direction — less about a single rulebook and more about recognizing a conflict of interest, a competence boundary, or a consent issue regardless of which setting it shows up in.

Because the QBA candidate pool studies and tests across multiple languages, the exam also rewards precision with core terminology in whatever language you're using to study — a term that gets slightly reworded in translation, like the difference between a preference assessment and a reinforcer assessment, is still tested on the original underlying distinction.

Common mistakes QBA candidates make

Candidates who studied in a second language sometimes lose points not on concepts but on terminology that shifted slightly in translation — building a bilingual glossary of the core terms early prevents this. Another common miss is treating every preference-assessment question the same way instead of matching the method to the constraints in the stem. And because ethics and supervision content is woven through multiple domains rather than isolated in one section, candidates who only review it once tend to underestimate how often it actually appears.

How to pass the QBA exam in 3 steps