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Open Source Psychometrics Project

This is an interactive version of the Open Four Temperaments Scales.

Introduction: The idea of the four temperaments traces back to the Ancient Greek medical theory of the four humours, which held that there were four fundamental bodily humours (blood, yellow bile, black bile, and phlegm) and that illness was caused by an imbalance in these. The terms sanguine, choleric, melancholic and phlegmatic were coined by the Greek physician Aelius Galenus to describe the effect of the humours on personality. The four temperaments have not been a part of medicine or psychology for a hundred years, but remain popular in the writings of several prominent self-help and spirituality authors and the idea remains relatively well known.

The Open Four Temperaments Scales were developed in 2014 by Eric Jorgenson using surveys of individuals who knew of the four temperaments and identified as one, and selecting items that reliably predicted self-identification.

Procedure: This test consists of 40 statements that must be rated on how much you agree with them on a five point scale (where 1=Disagree, 3=Neutral, and 5=Agree). It should take most people about five minutes to complete.

Participation: You use of this assessment should be for educational or entertainment purposes only. This is not psychological advice of any kind. Additionally, your responses to this questionnaire will be anonymously saved and possibly used for research or otherwise distributed.

  • Hans Eysenck (1967). The biological basis of personality. Springfield: C. C. Thomas.