(MPS™) Malingering Probability Scale™

By Leigh Silverton, PhD

(MPS™) Malingering Probability Scale™

Benefits

Provides a quick, convenient, inexpensive way to identify those feigning or exaggerating psychopathology

Ages

18 and over

Admin Time

20 minutes

Format

Self-report

Norms

Based on a nationally representative sample of more than 1,000 adults

Publish Date

1998

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Call 800.648.8857

Forms

MPS PC Answer Sheet (Pad of 100)

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Product #: W-295D

MPS PC Answer Sheet (Pad of 100)

For use with the MPS CD. Does not include test items; must be used with Administration Card.

$20.50

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Software

MPS Kit with CD for On-Site Computer Scoring

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Product #: W-295CD

MPS Kit with CD for On-Site Computer Scoring

Includes Reusable Administration Card; MPS CD (good for 20 uses; requires PC with Windows 10, 8, 7, Vista or XP. CD-ROM drive and USB port required); Pad of 100 PC Answer Sheets; Manual

$536.50

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MPS 20-Use Scoring CD

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Product #: W-295U

MPS 20-Use Scoring CD

PC with Windows 10, 8, 7, Vista or XP. CD-ROM drive and USB port required. Each CD is good for 20 uses. Free U.S. shipping.

$475.50

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Stimulus Materials

MPS Reusable Administration Card (Pack of 5)

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Product #: W-295A

MPS Reusable Administration Card (Pack of 5)

$35.50

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MPS Reusable Administration Card (Single)

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Product #: W-295A-1

MPS Reusable Administration Card (Single)

$8.00

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Manuals & Resources

MPS Manual

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Product #: W-295B

MPS Manual

$72.00

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(MPS™) Malingering Probability Scale™

 (MPS™) Malingering Probability Scale™

BY LEIGH SILVERTON, PHD

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 noncriminal samples shows that the MPS is effective in identifying malingerers.

A Large, Varied Norm Sample

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’s 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.

Items Addressing Real and Simulated Psychopathology

MPS scales—Post-Traumatic Stress, Schizophrenia, Depression, and Dissociative Disorders—address real psychopathology, while a large set of parallel items represents simulated psychopathology. This nonoverlapping 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 using the CD. 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.

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