It is commonly agreed that personality instruments can be implemented well, and they can be implemented poorly. My question is, is it actually possible to measure what personality instruments claim to measure?
The predominant way of thinking of humans is that thought comes before action, based on Descartes (I think therefore I am). So we see ourselves as being minds (or souls) inhabiting and having supremacy over our bodies.
Personality profiles and tarot cards alike offer the promise of articulating and measuring this inner essence that is your mind or your soul.
Psychological approaches such as profiles also offer the additional promise of the potential to measure this inner essence, and by implication, to manage it in the service of the organisation. After all, what can be measured, can be managed. For example, I have been told not once, but twice after completing Myers-Briggs questionnaires during recruitment processes for consulting companies (I got both jobs, by the way) that the test was just to "make sure I wasn’t an axe murderer". Two completely different people administering this instrument both came up with the same line – I guess this implies that there must be a specific Myers-Briggs profile that fits an axe murderer. (more…)