Comparison of multiple scoring methods for Rey's malingered amnesia measures

Area of Science:

• Neuropsychology
• Forensic Psychology
• Cognitive Assessment

Background:

• Malingered amnesia assessment is crucial in legal contexts.
• Andre Rey's memory measures are established tools for detecting feigned memory deficits.
• Distinguishing genuine amnesia from malingering is challenging, particularly in litigated cases.

Purpose of the Study:

• To evaluate the predictive accuracy of Andre Rey's malingered amnesia measures.
• To determine if scoring modifications enhance the diagnostic utility of Rey's memory tests.
• To assess the applicability of Rey's measures across different patient populations, including those with traumatic brain injury and litigated head injuries.

Main Methods:

• Discriminant function analysis and crosstabulation were employed.
• The study compared performance on Rey's Memory for Fifteen Items and Word Recognition List tests.
• Participants included a traumatic brain injury group (n=60) and a litigated minor head injury group (n=90).

Main Results:

• Satisfactory predictive accuracy was achieved using Rey's original scoring methods.
• Modified scoring methods yielded improved hit rates for predicting malingering.
• Excluding participants with dense amnesia further enhanced the accuracy of Rey's measures.

Conclusions:

• Rey's malingered amnesia measures demonstrate validity for identifying cognitive malingering in litigated disability claims with disproportionate injury characteristics.
• The measures are not recommended for assessing severely impaired patients in clinical settings.
• Scoring modifications can optimize the diagnostic performance of Rey's memory tests in forensic evaluations.