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Related Experiment Video

Updated: May 8, 2026

The Multiple Sclerosis Performance Test (MSPT): An iPad-Based Disability Assessment Tool
11:35

The Multiple Sclerosis Performance Test (MSPT): An iPad-Based Disability Assessment Tool

Published on: June 30, 2014

Assessing effort: differentiating performance and symptom validity.

Sarah A Van Dyke1, Scott R Millis, Bradley N Axelrod

  • 1a Neuropsychology Department , Rehabilitation Institute of Michigan , Detroit , MI , USA .

The Clinical Neuropsychologist
|September 14, 2013
PubMed
Summary
This summary is machine-generated.

Neuropsychological assessment requires separate evaluation of cognitive performance, symptom validity, and performance validity. These factors are distinct, and failure in one does not automatically invalidate another, ensuring accurate clinical interpretation.

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Last Updated: May 8, 2026

The Multiple Sclerosis Performance Test (MSPT): An iPad-Based Disability Assessment Tool
11:35

The Multiple Sclerosis Performance Test (MSPT): An iPad-Based Disability Assessment Tool

Published on: June 30, 2014

Area of Science:

  • Neuropsychology
  • Clinical Psychology
  • Psychometrics

Background:

  • Neuropsychological assessments evaluate cognitive function and symptom reporting.
  • Distinguishing between genuine symptoms and response bias is crucial for accurate diagnosis.
  • Understanding the interplay between cognitive performance and validity measures is essential.

Purpose of the Study:

  • To clarify the relationships among cognitive performance, symptom self-report, performance validity, and symptom validity in neuropsychological assessment.
  • To determine the best factor model describing these relationships.
  • To inform clinical practice regarding the interpretation of validity measures.

Main Methods:

  • Confirmatory factor analysis (CFA) was used to test six different models.
  • 120 individuals from a veteran's hospital with mixed referral sources participated.
  • A battery of tests including WAIS-IV, CVLT-II, TMT-B, TOMM, MSVT, RDS, PCL-M, MMPI-2 scales, and PCSQ were administered.

Main Results:

  • A three-factor model emerged as the strongest and most parsimonious.
  • The three factors identified were cognitive performance, performance validity, and self-reported symptoms.
  • Symptom validity measures were integrated within the self-reported symptoms factor.

Conclusions:

  • Cognitive performance, performance validity, and symptom validity represent distinct constructs.
  • Failure in one validity domain does not necessarily invalidate findings in another domain.
  • Performance validity and symptom validity should be assessed and interpreted independently.