Browsing by Author "Holtzkamp, Jani Gerda"

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    Measurement invariance of the second edition of the Fifteen Factor Personality Questionnaire (15FQ+) over different ethnic groups in South Africa
    (Stellenbosch : Stellenbosch University, 2013-12) Holtzkamp, Jani Gerda; Gorgens, Gina; Theron, C. C.; Stellenbosch University. Faculty of Economic and Management Sciences. Dept. of Industrial Psychology.; Kriel, Jani Gerda
    ENGLISH ABSTRACT: Commericial organizations operate in a free-market economic system. The goal of commercial organizations in a free-market economic system is to utilise scarce resources at their disposal to optimally maximise their profits. To achieve this goal, the human resources function is tasked with the responsibility to acquire and maintain a competent and motivated workforce in a manner that would add value to the bottom-line. The human resource management interventions are therefore a critical tool in regulating human capital in such a manner that it optimally adds value to the business. Personality tests are used in the world of work to determine individual differences in behaviour and performance. There was recently a dispute over the effectiveness of the use of personality tests in predicting job performance, but personality is nowadays regarded as a an influential causal antecedent in the prediction of job performance. From the first democratic elections held in 1994, greater demands have been placed on the cultural appropriateness of psychological testing in South Africa. The use of cross-cultural assessments in South Africa are therefore currently very prominent. The use of psychological tests, including personality tests, is now strictly controlled by legislation, including the Employment Equity Act 55 of 1998. In order to make informed decisions, industrial psychologists and registered psychology practitioners need reliable and valid information about the personality construct which will enable them to make accurate predictions on the criterion construct. This argument provides significant justification for the primary purpose of this study, namely an equivalence and invariance study of the second edition of the Fifteen Factor Questionnaire (15FQ +) in a sample of Black, Coloured and White South Africans. Bias in psychological testing can be described as ‘troublesome’ factors that threaten the validity of cross-cultural comparisons across different groups e.g., ethnic groups (Van de Vijver & Leung, 1997). These factors can be caused by construct bias, method bias and/or item bias. It is therefore essential that the information provided by the test results must have the same meaning across all the various reference groups. This assumption necessitates evidence of equivalent and invariant measurements across different groups. Equivalence and invariance in this study is investigated by making use of Dunbar, Theron and Spangenberg (2011)'s proposed steps. Complete measurement invariance and full measurement equivalence is the last step and implies that the observed measurements can be compared directly between the different groups.