B - 74 Using Cattell-Horn-Carroll Theory to Investigate the Structure of Executive Function in the Delis-Kaplan Executive Function System (D-KEFS)

Abstract

OBJECTIVE: To evaluate a series of published executive function factor models for the Delis-Kaplan Executive Function System (D-KEFS) and contrast these models with an a priori three-factor model based on Cattell-Horn-Carroll (CHC) theory. METHOD: This was a cross-sectional study using the 16 main achievement scores from the D-KEFS standardization sample, which includes three separate age-cohorts. We aimed to replicate previously reported factor models for the D-KEFS in the 20-to-49-year cohort (N = 361) using the approaches described in the original published studies. We also sought to use confirmatory factor analysis to contrast these models with an a priori three-factor model based on CHC..