The Need for Validity Indices in Personality Assessment: A Demonstration Using the MMPI-2-RF.

The Need for Validity Indices in Personality Assessment: A Demonstration Using the MMPI-2-RF.

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We examined the impact of overreporting on the validity of Minnesota Multiphasic Personality Inventory-2 Restructured Form (MMPI-2-RF) scale scores by comparing the strength of correlations with external criteria for a control group of individuals who completed the MMPI-2-RF under standard instructions with correlations of individuals who completed the instrument under instructions to (a) feign psychopathology or (b) feign somatic complaints. Correlations between MMPI-2-RF substantive scales and criteria were much weaker for feigners than for controls. We also examined mean profiles, which were more elevated for feigners than for controls. Overall, results were more extreme for psychopathology feigners than for somatic feigners. Our results demonstrate the detrimental effect that overreporting psychopathology or somatic problems has on the validity of MMPI-2-RF scale scores. The findings emphasize the critical need for validity indices in self-report personality assessment so that test interpreters can detect individual protocols that are likely to have extremely invalid scale scores due to invalid responding.Correlations between MMPI-2-RF substantive scales and criteria were much weaker for feigners than for controls. We also examined mean profiles, which were more elevated for feigners than for controls.


Title:The Need for Validity Indices in Personality Assessment: A Demonstration Using the MMPI-2-RF.
Author:
Publisher:ProQuest - 2009
ISBN-13:

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