The primary goal of this study was to investigate the underlying structure of the Differential Ability Scales (DAS) using Exploratory Principal Axis Factoring (PAF) with 62 nonclinical preschoolers. While previous factor analyses of the DAS Core subtests revealed the derivation of two distinct factors, the current results revealed only one factor, general cognitive ability. When the DAS Core and Diagnostic subtests were combined, two factors emerged, general cognitive ability and visual memory. Overall, these results suggest that the DAS Core subtests are a measure of general intelligence. Recommendations for users of the DAS with young children are provided. (Author/SLD)