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The ASPPB EPPP now has two parts. Here’s the format and the official content weighting
for each, from the ASPPB exam topics.
Format at a glance
| Part 1 (Knowledge) | Part 2 (Skills) | |
|---|---|---|
| Items | 225 (175 scored, 50 pretest) | 170 (130 scored, 40 pretest) |
| Time | 4 hours 15 minutes | 4 hours 10 minutes |
| Item types | Multiple choice | Multiple choice plus scenarios and video-based items |
| Required | All jurisdictions | Only jurisdictions that have adopted it |
Part 1 (Knowledge) domains & weights
| Domain | Weight |
|---|---|
| Ethical, Legal, and Professional Issues | 16% |
| Assessment and Diagnosis | 16% |
| Treatment, Intervention, Prevention, and Supervision | 15% |
| Cognitive-Affective Bases of Behavior | 13% |
| Growth and Lifespan Development | 12% |
| Social and Cultural Bases of Behavior | 11% |
| Biological Bases of Behavior | 10% |
| Research Methods and Statistics | 7% |
Ethics and assessment are tied for the largest share — together nearly a third of Part 1.
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Frequently asked questions
What is on the EPPP?
EPPP Part 1 (Knowledge) covers eight domains, led by Ethical/Legal/Professional Issues (16%) and Assessment and Diagnosis (16%), then Treatment/Intervention (15%), Cognitive-Affective (13%), Lifespan Development (12%), Social/Cultural (11%), Biological (10%), and Research Methods and Statistics (7%).
How long is the EPPP?
EPPP Part 1 is 225 items over 4 hours 15 minutes; the optional Part 2 (Skills) is 170 items over 4 hours 10 minutes.
What is the most heavily tested area on the EPPP?
Ethical, Legal, and Professional Issues and Assessment and Diagnosis are tied at 16% each on Part 1 — together nearly a third of the exam.
Sources & references
The exam facts on this page are drawn from official certifying-body materials, reviewed 2026-06-18 by the DrCertifications exam-prep team (10+ years in exam preparation and publishing).