Invariance of the measurement model underlying the wechsler adult intelligence scale-III in the United States and Canada

Abstract

A measurement model is invoked whenever a psychological interpretation is placed on test scores. When stated in detail, a measurement model provides a description of the numerical and theoretical relationship between observed scores and the corresponding latent variables or constructs. In this way, the hypothesis that similar meaning can be derived from a set of test scores can be tested by examination of a measurement model across groups. This study examines the invariance of a measurement model underlying Wechsler Adult Intelligence Scale-Third Edition scores in the U.S. and the Canadian standardization samples. The measurement model, involving four latent variables, satisfies the assumpti..