Construct Validity of Heroin Abuse Estimators

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Abstract
The construct validity of 2 methodologically unrelated procedures for estimating the prevalence of heroin abuse was studied using a covariance structure model-fitting approach. A factor analytic estimation procedure and a log-linear-based capture-recapture method of estimation were simultaneously applied to 24 major metropolitan areas of the nation. A test of the construct validity of these procedures for estimating the prevalence of heroin abuse was carried out in the content of structural equation models where the results of the 2 methods were compared directly.