The problem of factor score indeterminacy implies that the factor and the error scores cannot be completely disentangled in the factor model. It is therefore proposed to compute Harman's factor score predictor that contains an additive combination of factor and error variance. This additive combination is discussed in the framework of classical…

Studied the effect on criterion-related validity of nonfitting response vectors (NRVs) on a predictor test using simulation. Results suggest that NRVs can influence the validity of a test if the type of misfit is severe, the correlation between the predictor and criterion scores is "p"=0.3 or 0.4, and there are 15% or higher NRVs. (SLD)

A Monte Carlo experiment was used to evaluate four procedures for estimating the population squared cross-validity of a sample least squares regression equation. One estimator was particularly recommended. (Author/BH)