Using Alternate Forms of the Multidimensional Health Locus of Control Scale: Caveat Emptor

This study examined whether Forms A and B ofthe Multidimensional Health Locus of ControlScale (MHLCS) are parallel by comparing (a)mean performance on the internal, powerfulothers, and chance subscales, (b) the internalconsistency and one-week test-retestreliability estimates for each of thesubscales, (c) the intercorrelations among thesubscales, (d) the relationship betweenself-rated health status and each of thesubscales, and (e) the fit of the three-factorstructure for the MHLCS proposed by Wallston etal. (1978) using confirmatory factor analysis(CFA). A non-clinical sample (N = 245) wasused. Overall, the results of the study do notsupport treating Forms A and B of the MHLCS asparallel or exchangeable forms. Directions forfurther revisions to the MHLCS are proposedbased on both the present study as well asfindings from the literature.