High Quality Content by WIKIPEDIA articles! The Sixteen Personality Factor Questionnaire (or 16PF), is a multiple-choice personality questionnaire which was developed over several decades of research by Raymond B. Cattell, Maurice Tatsuoka and Herbert Eber. Beginning in the 1940s, Cattell used the new techniques of factor analysis (based on the correlation coefficient) in an attempt to try to discover and measure the fundamental traits of human personality (Cattell, 1946).