The multiple silly personality tests build on the Myers-Briggs test, which is copyright. The Myers-Briggs foundation kindly has this data on it’s website.
Now the foundation includes this comment:
“Ethical use also means an honest presentation of the MBTI practitioner’s training and expertise, of research results, and of authorship and ownership of the MBTI assessment tool and other materials.
Ethical guidelines are also meant to prevent the abuse of type. Abuse includes using type to assess people’s abilities and using type to pressure people toward certain behaviors”
It’s clear that the computer tests do not adhere (well most of them don’t) to acknowledging who owns the ideas. The second paragraph is more important. You should not ask or pressure people on the basis of these tests…
- The web versions are not a proper MBTI. They cannot be, for copyright reasons. They therefore have not been validated or had their psychometric properties measured.
- The MBTI may not be valid. This is not a criticism of Myers or Briggs: in the same way, the DSM-IV (current diagnostic system) is probably not valid. We do not the knowledge to get beyond description to validity.
- I’m uncertain as to if there is “healthy” personality. I’m more comfortable talking about distress, resilience and adjustment.
The web tests are for fun only… and as the foundation say, the temptatinon to use in any other way should be avoided

