In this study was compared the relative predictive power of an achievement test and a self-report questionnaire for cognitive abilities in the context of prediction of educational achievement. With average grades, the multiple correlation of scores on both tests administered to a sample of 232 pupils in secondary education showed only marginal differences.
OosterveldP.VorstH. C. M. (submitted) A note on the reliability and validity of self-evaluation of ability scales. (Manuscript submitted for publication, Univer. of Amsterdam)
