A factorial approach to neuropsychological assessment

Abstract

A factorial structure approach is examined in the assessment of test behaviors related to brain damage. A factor analysis performed on data from an extensive battery of psychological tests administered to 292 adult brain-damaged patients yielded five clearly defined factors. Multiple regression analysis was employed to predict performance on a second set of criterion tests that used, first, actual test scores, and second, factor scores. Formulae are presented to predict factor scores from the few best contributing variables. These estimated factor scores applied on independent patients indicate predictability through the use of raw test scores as good as that derived through the use of estimated factor scores. Results reveal an economical and comprehensive method to assess brain functioning through the use of factor categories rather than isolated test scores.

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