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 ... - read more
IPAT – is a provider of powerful psychological assessments of personality, behavior, and integrity including 16PF Questionnaire and Inwald Personality Inventory. - read more
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