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Structural-Equation Models Of Current Drug Use: Are Appropriate Models So Simple(X)?, Ron D. Hays, Keith F. Widaman, M. Robin Dimatteo, Alan W. Stacy
Structural-Equation Models Of Current Drug Use: Are Appropriate Models So Simple(X)?, Ron D. Hays, Keith F. Widaman, M. Robin Dimatteo, Alan W. Stacy
CGU Faculty Publications and Research
The simplex and common-factor models of drug use were compared using maximum-likelihood estimation of latent variable structural models in two samples: a sample of 226 high school students, using ratio-scale measures of current drug use, and a sample of 310 industrial workers and 811 college students, using ordinal-scale measures of current drug use. Latent variables of alcohol, marijuana, enhancer hard drugs, and dampener hard drugs were specified in a series of structural models. Contrary to previous findings with cumulative drug-use data, the common-factor model provided a more acceptable representation of the observed current-use data than did the simplex model in …