Accuracy of the MMPI-2 computerized Minnesota report in identifying fake-good and fake-bad response sets

The present simulation study was designed to evaluate the accuracy of the computerized Minnesota Report in identifying faked response sets on the Minnesota Multiphasic Personality Inventory (MMPI-2). The Minnesota Report is being increasingly relied upon in forensic neuropsychological assessments to assist in identifying malingering. Three groups of 18 students were given different sets of instructions: fake-good, fake-bad, and the standard instructions. Of those participants instructed to fake-good, the classification rate was 94% with only one participant misclassified as providing a 'normal' profile. Of those participants instructed to fake-bad, 100% were correctly classified by the Minnesota Report. Of those who completed the MMPI-2 under standard instructions 78% were classified as having 'normal' profiles, whereas 22% were classified as faking-good. The value of the Minnesota Report in identifying fake-bad response sets was amply demonstrated, and it is such performances that may be helpful in detecting malingering in forensic evaluations.