We consider, that R.Cattell has made the great discovery in a psychological science of XX century. The evidence to that is worldwide practical use of the 16PF, allowing to predict variety of the person behavior.

Psychological Basis

      From the beginning of 1930th intensive research of the personality psychology on the basis of multifactor methods is developed. In one of these investigations, carried out by Professor of psychology of Illinois University Raymond B.Cattell, has been undertaken attempt of unbiassed (not determined by preliminary hypotheses) and as full as possible revealing of the fundamental variables being found in diverse features of the personality, expressed in ordinary language. These deep features received by means of factorial analysis have formed the stable structure and have been named by R.Cattell "primary source personality traits". For quantitative measurement of expressiveness of discovered factors, personality test - the Sixteen Personality Factor Questionnaire (16 PF) has been created, for the first time published in 1949.

     Now, there is no unequivocal attitude to the findings made by R.Cattell and his colleagues on Institute of Personality and Ability Testing (IPAT). This theory of personality either is considered as a hypothesis demanding the further experimental confirmation, or correctness of researches premises and the personality test validity is denied at all. In the book of A.Anastasi "Psychological testing", some kind of testology encyclopedia, the factors revealed by R.Cattell are estimated as capable more likely to reflect partial influence of social stereotypes and other constant mistakes in judgments, rather than structure of the person features.

     In our model we suppose the existence of fourteen basic personality features corresponding with major 16PF personality test factors, except for factors "O" and "Q4", considered by us as derivative.

     A list of 14 bipolar factors from Cattell's Sixteen Personality Factors Model: