Test finder
Which one should you actually take?
Four questions, then three recommendations that show their reasoning instead of just naming a winner.
Question 1 of 4
What are you actually trying to work out?
This matters more than any other answer, because the instruments differ far more in what they are for than in how good they are.
Common questions
What people ask before choosing
- How does the finder decide what to recommend?
- Every assessment is scored against your four answers. Fitness for your stated purpose carries the most weight, then either evidence quality or practical usefulness depending on how much you said the research matters to you, then budget and time. The reasons behind each score are shown with the result so you can disagree with them.
- Which personality test has the best scientific evidence?
- The Big Five, the BFI-2, and HEXACO are the only three instruments on this site graded as having strong evidence, meaning independent peer-reviewed replication of both reliability and validity. All three are free to take.
- Is the MBTI a good personality test?
- It is useful as a shared vocabulary in team settings and unreliable as a measurement. A substantial share of people receive a different four-letter type when they retake it weeks later, because the model cuts continuous score distributions into two categories. The publisher itself states it should not be used for hiring.
- Are free personality tests as good as paid ones?
- For the Big Five, yes. The free public-domain IPIP scales correlate with the commercial NEO-PI-R at about .73 across the thirty facet scales, rising to about .94 once corrected for unreliability. Paying buys a more polished report, not a materially different measurement.