EPPP Research Methods and Statistics Practice Questions
Domain 7 of ASPPB’s EPPP Part 1 · 7% of the exam, about 12 of the 175 scored questions
225 questions across all eight domains in 4 hours 15 minutes, with a score for Research and Statistics so you know where you stand.
Free Research and Statistics drillClients are selected for a study because they scored extremely high on an anxiety scale. At retest, with no treatment, their average score is lower. This is most likely due to:
Research Methods and Statistics on the EPPP
Research methods and statistics is Domain 7 of ASPPB’s specifications and 7% of the exam, about 12 of the 175 scored questions, the smallest domain but one where every question can be answered by reasoning. The questions ask which design or test fits a study, what a result means and what could undermine it.
- Share of the exam
- 7% in ASPPB’s Part 1 specifications (KN53–KN60), about 12 of the 175 scored questions
- Our drill
- 10 questions from 46 Research and Statistics questions, untimed, an explanation after every answer; one free attempt, unlimited with a pass
What research and statistics questions test
- Sampling and data collection, and case, correlational, quasi-experimental and experimental designs (KN53, KN54)
- Statistical tests: choosing among t-tests, ANOVA, chi-square, correlation, regression and factor analysis, plus qualitative methods (KN55)
- Interpretation: Type I and II errors, power, effect size, statistical versus clinical significance (KN56)
- Critical appraisal: internal and external validity and their threats, levels of evidence (KN57)
- Program evaluation, community involvement in research and dissemination (KN58-KN60)
Sit the full exam under the real clock
225 questions across all eight domains in 4 hours 15 minutes, with a score for Research and Statistics so you know where you stand.
Free Research and Statistics drillHow to study it
- Choose a statistical test from three facts: how many independent variables, how many levels, and the scale of the dependent variable.
- Learn what raises power (larger samples, larger effects, a higher alpha, less error) and how alpha and beta trade off.
- Learn the internal-validity threats with one example each (history, maturation, regression to the mean, selection, attrition).
- Take the research and statistics drill until you score 90% or better; these points are very learnable.
Common questions
How many statistics questions are on the EPPP?
Research methods and statistics is 7% of EPPP Part 1 in ASPPB’s specifications, about 12 of the 175 scored questions, the smallest domain.
Do I need a calculator for EPPP statistics?
The questions test reasoning about designs and results more than arithmetic. Our statistics questions need at most simple arithmetic you can do on a note board.
225 questions across all eight domains in 4 hours 15 minutes, with a score for Research and Statistics so you know where you stand.
Free Research and Statistics drillThe other EPPP domains
- Biological Bases of Behavior
- Cognitive-Affective Bases of Behavior
- Social and Cultural Bases of Behavior
- Growth and Lifespan Development
- Assessment and Diagnosis
- Treatment, Intervention, Prevention and Supervision
- Ethical, Legal and Professional Issues
- EPPP practice exam (225 questions, 4 hours 15 minutes)
- Mixed drill: all eight domains
- EPPP practice test: exam facts and every domain
Sources
- ASPPB: EPPP Candidate Handbook, January 2026 (PDF)
- ASPPB: Current EPPP content areas, domains and weights
- ASPPB: Examination for Professional Practice in Psychology (EPPP)
- ASPPB: EPPP exam types (Part 1 and Part 2)
- ASPPB: EPPP registration fees
- ASPPB: EPPP sample exams
- ASPPB: Future EPPP content areas (integrated EPPP, fall 2027)
- ASPPB: Updates on the EPPP for 2028
- ASPPB: 2025 Psychology Licensing Exam Scores by Doctoral Program (PDF)
- APA: Ethical Principles of Psychologists and Code of Conduct
Original practice questions for exam preparation, written to ASPPB’s EPPP (Part 1-Knowledge) content areas; they are not ASPPB questions. Independent practice, not affiliated with or endorsed by the Association of State and Provincial Psychology Boards (ASPPB) or the American Psychological Association. EPPP is a registered mark of ASPPB.