Transformation Abilities: A Reanalysis and Confirmation of SOI Theory

Abstract

Confirmatory factor analysis was used to reanalyze correlational data from selected test variables in Guilford's Aptitudes Research Project (Hoepfner, Guilford, and Bradley, 1968). Results indicated that Guilford's model does serve to reproduce more closely the original correlation matrix than does either a no factor (null) model, a random factor model, or a single (general) factor model. Further, most of Guilford's tests exhibited high loadings on their hypothesized factors. Factors were well-differentiated. These results were interpreted as providing at least modest, if not strong, support for Guilford's SOI theory.