Validity of the MMPI-2-RF (Restructured Form) L-r and K-r Scales in Detecting Underreporting in Clinical and Nonclinical Samples
Date
2008
Authors
Sellbom, Martin
Bagby, R Michael
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Publisher
American Psychological Association
Abstract
In the current investigation, the authors examined the validity of the L-r and K-r scales on the recently developed Minnesota Multiphasic Personality Inventory-2-Restructured Form (MMPI-2-RF; Y. S. Ben-Porath & A. Tellegen, in press) in measuring underreported response bias. Three archival samples previously collected for examining MMPI-2 validity scales were reanalyzed in 2 studies. In Study 1 L-r and K-r significantly differentiated 2 groups of participants (patients with schizophrenia and university students) who had been instructed to underreport on the MMPI-2 from participants who took the test under standard instructions. L-r and K-r also added incremental predictive variance to one another in differentiating these groups. In Study 2 a similar set of outcomes emerged through the use of a differential prevalence design in which L-r and K-r significantly differentiated a group of child custody litigants who were administered the MMPI-2 from university students taking the test under standard instructions.
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Keywords
Keywords: adult; article; controlled study; female; human; major clinical study; male; mental patient; Minnesota Multiphasic Personality Inventory; schizophrenia; university student; validity; Adult; Female; Humans; Male; MMPI; Personality Disorders; Psychology; Qu MMPI-2; MMPI-2-RF; social desirability; underreporting; validity scales
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Source
Psychological Assessment
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Journal article
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2037-12-31
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