4.2 Article

Sandbagging Baseline Test Performance on ImPACT, Without Detection, Is More Difficult than It Appears

期刊

ARCHIVES OF CLINICAL NEUROPSYCHOLOGY
卷 28, 期 3, 页码 236-244

出版社

OXFORD UNIV PRESS
DOI: 10.1093/arclin/act009

关键词

Concussion; Coached versus nave malingering; ImPACT

资金

  1. International Brain Research Foundation
  2. Sports Concussion Center of New Jersey

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Participants coached to display poor effort on neuropsychological tests have successfully evaded detection. Recent research has documented that 89 college athletes instructed to perform poorly on a follow-up baseline ImPACT (Immediate Post-concussion Assessment and Cognitive Testing) test were unable to bypass detection, but otherwise, sandbagging on baseline testing has not been directly studied. In an analog study intended to measure participants ability to successfully sandbag, we compared baseline test performance in three groups of individuals, instructed: (a) to perform their best, (b) to malinger without guidance (e.g., nave), and (c) how to malinger (e.g., coached), using ImPACT, the Medical Symptom Validity Test (MSVT), and the Balance Error Scoring System. The MSVT identified more participants in the nave (80) and coached (90) groups than those automatically flagged by ImPACT (60 and 75, respectively). Inclusion of additional indicators within ImPACT increased identification to 95 of nave and 100 of coached malingerers. These results suggest that intentional sandbagging on baseline neurocognitive testing can be readily detected.

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