This document provides information about the 16 Personality Factor Questionnaire (16PF) personality test. It is a 164-item self-report questionnaire that measures 16 primary personality factors. It was developed by Raymond Cattell and aims to assess an individual's personality and behavioral style. The test consists of statements about oneself that are rated on a 5-point scale from disagree to agree. It is meant to be taken for work purposes only and provides scores on 16 personality factors with descriptions of low and high scores.