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Evaluation context and Symptom Validity Test performances in a U.S. Military sample.

Patrick Armistead-Jehle1, Brett Buican

  • 1Department of Behavioral Health, Munson Army Health Center, Fort Leavenworth, KS 66027, USA. patrick.jehle@amedd.army.mil

Archives of Clinical Neuropsychology : the Official Journal of the National Academy of Neuropsychologists
|October 11, 2012
PubMed
Summary

Military service members undergoing disability evaluations (Medical Evaluation Board; MEB) showed lower Symptom Validity Test (SVT) performance. This impacts neurocognitive scores, highlighting the importance of context in SVT assessment.

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Area of Science:

  • Neuroscience
  • Psychology
  • Military Medicine

Background:

  • Symptom Validity Tests (SVT) are crucial for assessing response bias in clinical and forensic evaluations.
  • Understanding factors influencing SVT performance is vital for accurate neurocognitive assessment in military populations.

Purpose of the Study:

  • To investigate Symptom Validity Test (SVT) performance in active duty military service members.
  • To compare SVT performance between individuals undergoing a disability evaluation (Medical Evaluation Board; MEB) and those in a non-MEB/clinical context.

Main Methods:

  • A sample of military service members on active orders was assessed.
  • Participants' performance on the Word Memory Test (WMT), a type of SVT, was evaluated.
  • Neurocognitive test scores and self-reported psychological symptoms were analyzed in relation to SVT performance.

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Main Results:

  • Overall, 41.8% of the sample failed the Word Memory Test.
  • A significantly higher failure rate on the WMT was observed in the MEB group (54%) compared to the non-MEB/clinical group (35%).
  • SVT performance demonstrated a notable impact on neurocognitive scores, with a weaker association with self-reported psychological symptoms.

Conclusions:

  • Evaluation context, specifically a pending Medical Evaluation Board (MEB), is associated with poorer Symptom Validity Test (SVT) performance in military service members.
  • SVT performance significantly influences neurocognitive test results, underscoring its importance in interpreting these assessments.
  • Findings contribute to understanding SVT performance variations in active duty and veteran populations.