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Performance validity and processing speed in a VA Polytrauma sample.

Lee Ashendorf1,2, Erika L Clark1,3, Michael A Sugarman1

  • 1a Edith Nourse Rogers Memorial Veterans Hospital , Bedford , MA , USA.

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|March 10, 2017
PubMed
Summary
This summary is machine-generated.

Processing speed tests can effectively assess performance validity in neuropsychological evaluations for veterans. These measures offer high accuracy in identifying valid or invalid performance, aiding in accurate diagnoses.

Keywords:
Validityeffortprocessing speedveterans

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Area of Science:

  • Neuropsychology
  • Cognitive Psychology
  • Traumatic Brain Injury Research

Background:

  • Recognition memory is the standard for performance validity assessment in neuropsychological evaluations.
  • Embedded measures from other cognitive domains, such as processing speed, are being explored as alternative validity checks.

Purpose of the Study:

  • To evaluate the classification accuracy of processing speed measures for performance validity in a sample of military veterans.
  • To determine if processing speed measures can serve as effective tools for assessing performance validity.

Main Methods:

  • A sample of 114 military veterans with suspected mild traumatic brain injury underwent a comprehensive neuropsychological assessment.
  • Participants were categorized into "Valid" (n=80) or "Invalid" (n=34) performance groups based on established performance validity measures (PVMs).

Main Results:

  • Several processing speed measures demonstrated acceptable to excellent classification accuracy.
  • Specificities exceeded 90%, with sensitivities ranging from 29% to 53% for distinguishing valid from invalid performance.
  • Algorithms combining multiple processing speed PVMs did not improve classification accuracy over single measures.

Conclusions:

  • Processing speed measures are efficient and accurate tools for performance validity assessment in neuropsychological evaluations.
  • These findings support the use of processing speed measures as a valuable component of validity testing, particularly in veteran populations.