Classification Accuracy of MMPI-2 Validity Scales in the Detection of Pain-Related Malingering: A Known-Groups Study  

Oleh:

Bianchini, Kevin J. ; Etherton, Joseph L. ; Greve, Kevin W. ; Heinly, Matthew T. ; Meyers, John E.

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Assessment vol. 15 no. 4 (Dec. 2008), page 435-449.
Topik: chronic pain; malingering; MMPI-2; somatization; psychological assessment; spine surgery
Fulltext: 435.pdf (127.46KB)

Isi artikel

The purpose of this study was to determine the accuracy of Minnesota Multiphasic Personality Inventory 2nd edition (MMPI-2; Butcher, Dahlstrom, Graham, Tellegen, & Kaemmer, 1989) validity indicators in the detection of malingering in clinical patients with chronic pain using a hybrid clinical-known groups/simulator design. The sample consisted of patients without financial incentive (n = 23), nonmalingering patients with financial incentive (n = 34), patients definitively determined to be malingering based on published criteria (n = 32), and college students asked to simulate pain-related disability (n = 26). The MMPI-2 validity scales differentiated malingerers from nonmalingerers with a high degree of accuracy. Hypochondriasis and Hysteria were also effective. For all variables except Scale L, more extreme scores were associated with higher specificity. This study demonstrates that the MMPI-2 is capable of differentiating intentional exaggeration from the effects on symptom report of chronic pain, genuine psychological disturbance, and concurrent stress associated with pursuing a claim in a medico-legal context.

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