文章基本信息

标题：A psychometric investigation into the cross validation of an adaptation of the Ghiselli Predictability Index in personnel selection
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作者：Theron, Callie ; Meiring, Deon
期刊名称：SA Journal of Industrial Psychology
印刷版ISSN：2071-0763
出版年度：2006
卷号：32
期号：4
DOI：10.4102/sajip.v32i4.240
语种：English
出版社：AOSIS OpenJournals
摘要：Twigge, Theron, Steele and Meiring (2004) concluded that it is possible to develop a predictability index based on a concept originally proposed by Ghiselli (1956, 1960a, 1960b), which correlates with the real residuals derived from the regression of a criterion on one or more predictors. The addition of such a predictability index to the original regression model was found to produce a statistically significant increase in the correlation between the selection battery and the criterion. To be able to convincingly demonstrate the feasibility of enhancing selection utility through the use of predictability indices would, however, require the cross validation of the results obtained on a derivation sample on a holdout sample selected from the same population. The objective of this article consequently is to investigate the extent to which such a predictability index, developed on a validation sample, would successfully cross validate to a holdout sample. Encouragingly positive results were obtained. Recommendations for future research are made.
关键词：Personnel selection; Validation; Predictability; Index