The Restructured Clinical (RC) scales of the MMPI-2: an item level factor analytic examination with psychiatric inpatients

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Heinrichs, Robin J.
Dorr, Darwin, 1940-

This study examined the Restructured Clinical (RC) Scales of the MMPI-2 in a sample of 400 adult psychiatric inpatients. Scale intercorrelations were calculated for the RC and Clinical Scales and an exploratory factor analysis was conducted to assess the degree to which the developers of the scales were successful in the process of decreasing scale intercorrelations and removing the generalized Demoralization that artificially inflated the original basic nine Clinical Scales. Exploratory principle axis factor analysis was conducted with promax rotation. Resulting factors are discussed as is the finding of diminished generalized Demoralization on RC Scales 1 through 9. The authors of the RC Scales set forth the goal to remove Demoralization from the scales and to increase the disciminant validity of the RC Scales. This study indicates that the RC Scales, in the current inpatient sample are largely free of Demoralization. Further, the RC Scales were found to demonstrate better discriminant validity than that of the original Clinical Scales, though in the current sample the improvement in discriminant correlations is more modest than those reported in the RC Monograph.

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Thesis (Ph.D.)--Wichita State University, College of Liberal Arts and Sciences, Dept. of Psychology