Facets of personality: A proposal for the development of MCMI-III content scales
The Millon Clinical Multiaxial Inventory - Third Edition (MCMI-III), has been proven as a useful and efficient psychometric instrument in terms of diagnosis, treatment planning, and intervention. Consistent with the test author's theory, the instrument possesses multiple levels of information regarding the structure of personality that is accessible via rational and empirical means. Other objective inventories (e.g., MMPI-2), as well as the MCMI-III's sister inventory, the MACI, have been studied to ascertain underlying factors for their use as content subscales, affording clinicians and researchers increasing specificity in terms of an individual's personality structure. The current study assesses these other established content subscales, and examines the MCMI-III for its potential to support facet subscales intrinsically tied to Millon's (1990) Evolutionary Theory, the guiding framework for the development of the original instrument. Using the original normative data of 993 clinical subjects, the fourteen clinical personality scales were individually analyzed to ascertain the underlying structure. Rational examination of the fourteen personality scale item pools sought a reflection of the theory's specifications regarding eight functional and structural domains of personality. Each personality pattern, according to the theory, is predicted to present most saliently with two to three of the eight personologic domains; therefore, predictions were based, in part, on theoretical assumptions regarding most salient domains. An a priori method based on this initial stage was used to set up factor analyses using alpha extraction and promax rotation, to evidence supportive trends for the predicted factor structure. To propose facet subscales emerging from this analysis, adjustments were then made to enhance consonance with the theory while not sacrificing internal consistency. This analysis produced 35 proposed facet subscales for the MCMI-III that coincided with personologic domains predicted by the theory, and demonstrated sufficient internal consistency to be applied as supportive, clinical hypothesis-building subscales for the MCMI-III. Implications for their utilization in personality assessment, treatment planning, and intervention are discussed, as well as limitations of their use and generative directions for future MCMI-III factor scales. (PsycINFO Database Record (c) 2007 APA, all rights reserved)
https://www.upress.umn.edu/test-division/bibliography/2000-2009/2005/grossman_facets_2005
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Seth D Grossman
(2005)
Facets of personality: A proposal for the development of MCMI-III content scales
PhD thesis.