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Related Experiment Videos

Detecting coached neuropsychological dysfunction: a simulation experiment regarding mild traumatic brain injury.

Lily Lau1, Michael R Basso1, Eduardo Estevis1

  • 1a Department of Psychology , University of Tulsa , Tulsa , OK , USA.

The Clinical Neuropsychologist
|April 19, 2017
PubMed
Summary

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Coaching to evade detection on performance validity tests (PVTs) and symptom validity tests (SVTs) had minimal impact. Even with coaching, most participants simulating mild traumatic brain injury (TBI) were identified by PVTs and SVTs.

Area of Science:

  • Neuropsychology
  • Cognitive assessment
  • Traumatic Brain Injury (TBI) research

Background:

  • Performance validity tests (PVTs) and symptom validity tests (SVTs) are crucial in neuropsychological evaluations to ensure response accuracy.
  • Limited research exists on the impact of varying levels of coaching on the detection of response invalidity.

Purpose of the Study:

  • To investigate the effect of graduated coaching levels on the classification accuracy of PVTs and SVTs.
  • To assess the effectiveness of the criterion of failing two or more PVTs or SVTs in identifying simulators.

Main Methods:

  • Participants simulated mild TBI symptoms under different coaching conditions: superficial information, detailed information, or detailed information with evasion strategies.
  • An honest-responding group served as a control.
Keywords:
Coachingperformance validity testssymptom validity tests

Related Experiment Videos

  • Both stand-alone and embedded PVTs, along with SVTs, were administered.

    • Main Results:

    • PVTs and SVTs effectively identified most participants simulating TBI symptoms.
    • A small percentage of coached participants successfully evaded detection.
    • The Word Memory Test demonstrated high sensitivity in detecting simulated TBI symptoms.
    • PVTs were more sensitive than SVTs in detecting simulated head injury.

    Conclusions:

    • Coaching to evade detection marginally increased the success rate of simulators compared to symptom coaching alone.
    • Applying the criterion of failing two or more PVTs or SVTs resulted in only 5% of participants eluding detection.
    • PVTs and SVTs remain valuable tools for assessing response validity in neuropsychological evaluations, even when individuals are coached.