16 Personality Factor Questionnaire
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About 16 Personality Factor Questionnaire
The 16PF was originally developed as a set of primary and elementary factor scales whereby several other personality characteristics and behavioural patterns could be predicted. The questionnaire is based on Holland’s theory and contains 16 bipolar scales (called primary factors), five global factor scales and several validity scales. Fifteen of the primary factors and five of the global factors measure personality traits and the remaining factor measures cognitive ability or reasoning ability.
The bipolarity of the scales indicates that two interpretable bipolar opposites can be identified which correlate negatively with one another. Designed for ages 16 and over, this inventory yields 16 scores in respect of such traits as emotional stability, impulsiveness and conformity. One reason for the success of the 16PF is that the validated special scores greatly expand the utility of the 16PF for the counsellor.
These scores allow the counsellor to assess the role of personality structure in leadership, creativity and specific occupations. The instrument not only allows the respondent’s interests and abilities to be examined but also allows his or her personality to be taken into consideration during occupational decision making (Conn & Rieke, 1994). Numerous validity coefficients have been reported in respect of all 16 of the scales.
Reliability coefficients between 0,45 and 0,92 have been reported for the different scales by means of the test-retest method (Conn & Rieke, 1994). The internal consistency of the primary factors and validity scales range from 0,66 to 0,87.