The Word Completion Memory Test (WCMT): a new test to detect malingered memory deficits.

Area of Science:

• Neuropsychology
• Forensic Psychology
• Clinical Psychology

Background:

• Existing malingering detection tests struggle with individuals feigning sophisticated knowledge of neuropsychological deficits.
• There is a need for more robust methods to identify malingering in clinical and forensic evaluations.
• Sophisticated malingering, particularly after traumatic brain injury, presents a significant diagnostic challenge.

Purpose of the Study:

• To introduce and provide preliminary validation data for the Word Completion Memory Test (WCMT).
• To assess the WCMT's efficacy in detecting malingering, especially in individuals coached on neuropsychological deficits.
• To evaluate the WCMT's performance across different participant groups: controls, memory-impaired patients, and coached simulators.

Main Methods:

• The Word Completion Memory Test (WCMT) was developed using a novel coaching methodology.
• Coached simulators received detailed information and practice regarding memory deficits common after closed head injury (CHI).
• The WCMT was administered to control participants, memory-impaired patients, and coached simulators simulating malingering.

Main Results:

• The WCMT demonstrated high accuracy in classifying all participant groups.
• 93% of coached simulators were correctly identified as malingerers by the WCMT.
• 100% of control participants and memory-impaired patients were accurately classified by the WCMT.

Conclusions:

• The Word Completion Memory Test (WCMT) shows significant promise as a tool for detecting malingering.
• The WCMT's coaching methodology enhances its ability to identify sophisticated malingering.
• Preliminary data suggest the WCMT is a reliable measure for differentiating genuine impairment from feigned deficits.