AUTHOR: N. Tredoux
ABSTRACT: This chapter will discuss the development of the 15FQ+ and how it differs from the 16PF, which measures the same model of personality. An overview of the questionnaire’s reliability and validity will be done, comparing early studies with newer results. The effect of language proficiency, reasoning ability and education on the reliability of the questionnaire will be discussed. Differences between race and language groups of the various scales will be considered, with a discussion of the importance of these differences for the fair use of the questionnaire in South Africa. An overview of South African norms will be presented. Guidelines for the choice of norm groups will be discussed, with particular emphasis on the decision whether to use a general population norm or a smaller norm which would be specific to a given language or race group. For some assessment situations, the best choice may be to use a simpler questionnaire, or not to assess personality using a questionnaire at all. Attention will also be given to differences between age groups on the personality dimensions measures by the 15FQ+. The various computer-generated reports available for the 15FQ+ will be considered, to facilitate their appropriate use. Attention will be given to the practice of matching personality dimensions to competencies, the obtaining of matched scores, and the implications for fair use of the questionnaire. The importance of doing an integrated assessment will be emphasised, and some consideration will be given to additional sources of information that can be used to arrive at a fair and accurate assessment.