Free multiple-choice psychometrics exam for psychology undergraduates and graduate students: classical reliability, validity, classical test theory and measurement error, item analysis, exploratory and confirmatory factor analysis, basic IRT and norms. Every attempt draws questions at random from the bank; you see your overall and by-topic score on screen and receive every question graded and explained in your academic inbox.
Worked example: a 20-item questionnaire with a Cronbach alpha of .62 is not acceptable just for exceeding .60. Alpha estimates internal consistency, not validity, and .62 sits below the .70 research guideline (Nunnally & Bernstein, 1994): the justified decision is to review the items before using the total score.
Is it free? Yes, no sign-up; only an email at the end so we can send the correction. Can I retake it? Yes: questions are drawn anew on each attempt, so retaking means studying again, not memorizing the sheet.
Test yourself on psychometrics: reliability, validity, item analysis, EFA, CFA, IRT and norms. Instant score, explained correction in your academic inbox.