Confirmatory analysis of the factor structure of the wechsler memory scale-revised

Memory functions are known to be multifaceted. Models of the dimensionality of memory, as measured by the Wechsler Memory Scale-Revised (WMS-R), were investigated. Confirmatory factor analysis was used to explore one-, two-, and three-factor models for the first eight subtests of the WMS-R given to normal subjects in the standardization sample (N = 316) and a heterogeneous sample of clinical subjects (N = 343). The best fitting model was a two-factor model with general memory and attention/concentration dimensions.