SIMS - Structured Inventory of Malingered Symptomatology

by Glenn P. Smith, PhD
Professional Manual by Michelle R. Widows, PhD and Glenn P. Smith, PhD

Purpose: Screen for malingered psychopathology and cognitive symptoms
Age: 18 to 99 years
Admin: Self-report; Individual or group
Time: Admin:- 15 minutes  Scoring Time:- 15 Minutes

Qualification Level: 

The SIMS is a 75-item, true-or-false screening instrument that assesses both malingered psychopathology and neuropsychological symptoms.

  • Can be used as part of a battery of tests to provide convergent evidence of malingering.
  • Recommended as part of a comprehensive approach to any evaluation in which alternative hypotheses for response patterns should be considered.
  • Provides five scale domains—Psychosis, Low Intelligence, Neurologic Impairment, Affective Disorders, and Amnestic Disorders—as well as an overall score for probable malingering.
  • Demonstrates sensitivity, specificity, and efficacy across both simulation and known-groups designs with honest responders, psychiatric patients, and clinical malingerers.
  • Written at a 5th-grade reading level, the SIMS has demonstrated very good utility in identifying malingering across multiple studies

Software portfolio available

The SIMS-SP provides an Interpretive Report based on either an on-screen administration of the SIMS or hand-entry of an individual’s item responses or scale raw scores.

  • On-screen administration of the SIMS-SP is simple and convenient, with step-by-step instructions to guide the respondent through the process. The software provides the option for the respondent to view and/or hear the instructions as well as each of the 75 items.
  • Provides an overall score for likely feigning, along with scale scores within five SIMS domains, and interpretive text that discusses the likelihood of feigning based on the total score and the five scale domain scores.


Windows: XP, Vista,7,8

Mac users: install Windows in Virtualbox or bootcamp

Prerequisites: NTFS file system; CD-ROM drive for installation; Internet connection or telephone for activation and counter update


SIMS Introductory Kit

SIMS Introductory Kit

includes SIMS Professional Manual and 25 Response Forms Qualification Level:  A 


SIMS Professional Manual

SIMS Professional Manual

SIMS Professional Manual Qualification Level:  A 


SIMS Response Forms

SIMS Response Forms

SIMS Response Forms (pkg/25) Qualification Level:  A 




includes SIMS software with On-Screen Help, Quick Start Guide, and 5 bonus administrations Qualification Level:  A