Malingering Probability Scale mps-malingering

For: Provides a quick, convenient, inexpensive way to identify those feigning or exaggerating psychopathology
Reading Level: 18 and over
Format: Paper-and-Pencil; Computer Based Software
Length: 20 minutes
Scoring: Hand Scored; Computer Scored


PC Software

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MPS Kit with CD for On-Site Computer Scoring

Includes 1 MPS Reusable Administration Card; 1 MPS CD good for 20 uses; requires Windows 98, ME, XP, or 2000); a Pad of 100 PC Answer Sheets; Manual.
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MPS Reusable Administration Card (5)

Pack of 5.
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Leigh Silverton, Ph.D.


Here is an invaluable tool for clinicians who must assess the possibility of malingering. This brief self-report inventory gives you a quick, convenient and cost-effective way to determine the likelihood that an individual is exaggerating claims of mental illness. Research with both criminal and non-criminal samples shows that the MPS is effective in identifying malingerers.

Unlike other tests designed to assess malingering, the MPS is based on a large and varied sample. Norms are derived from a population of more than 1,000 adults, nationally representative in terms of gender, age, educational level and region. In addition, numerous validation studies were conducted on a sample of more than 600 individuals, including prison inmates, normals, outpatients, inpatients, and worker compensation claimants. (Normals and prisoners were asked to complete the test twice, responding honestly on one administration and faking on another). The scale has been validated against multiple measures and criteria.

MPS scales (Post-Traumatic Stress, Schizophrenia, Depression, and Dissociative Disorders) address real psychopathology, while a large set of parallel items represents simulated psychopathology. This non-overlapping subset of “pseudo” symptoms provides a strong basis for discriminating honest and dishonest protocols.

Composed of 139 simple True-False questions, the MPS can be easily completed in 20 minutes and then quickly computer scored. The test is an excellent way to help screen for psychopathology and to determine how likely it is that psychopathology is being exaggerated or feigned by the client.

Sample Report

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