Development and validation of new MMPI-2 scales to assess PTSD
Assessment approaches for posttraumatic stress disorder within the MMPI and MMPI-2 have utilized two different methods: evaluation of profile patterns and evaluation of an imbedded scale. Research has demonstrated that respondents with PTSD have varied profile configurations, thus, most research has involved the evaluation of the imbedded scale. Differences in classification rates were demonstrated in research, justifying development and evaluation of a different scale. This dissertation used the Replicated Rational Selection technique to identify and psychometrically refine a set of scales that corresponded to the symptom clusters of PTSD. Three separate samples, ranging in degree of psychopathology, were used to refine the developed scales based upon each item's corrected item total correlations and cross-scale correlations. The validation and examination of the classification rates of the developed scales was compared to the imbedded scale within a general psychiatric sample ( N = 1175). Results indicated little differences in classification rates between the developed scales and the scale currently included within the MMPI-2. However, results of logistical regressions indicated that there is some potential utility for predicting PTSD using the developed scales. (PsycINFO Database Record (c) 2007 APA, all rights reserved)
https://www.upress.umn.edu/test-division/bibliography/2000-2009/2007/wright_development_2007
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David C Wright
(2007)
Development and validation of new MMPI-2 scales to assess PTSD
PhD thesis.