An improvement in the statistical validity of the MMPI−168 through modified scoring

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Standard Form R keys from the MMPI, when applied to the MMPI-168, fail to score all items on all scales. In the present research, the MMPIs of 100 male VA hospital alcoholics were rescored to include this missing information. The results indicate that this modified scoring procedure substantially improves the correlation between short-form and full-scale scores for the Paranoia and Schizophrenia scales. The importance of considering the scoring of repeated items when investigating other short forms by the “extraction” method was also noted. (1 ref) (PsycINFO Database Record (c) 2006 APA, all rights reserved)

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