What question did this study set out to answer?

This research aims to evaluate the effectiveness of TOMM-1 and M-FAST in identifying feigned symptoms of dissociative identity disorder.

March 12, 2026

Multivariable utility of the test of memory malingering and miller forensic assessment of symptoms test in distinguishing clinical and simulated dissociative identity disorder symptoms.

Key Points

This research aims to evaluate the effectiveness of TOMM-1 and M-FAST in identifying feigned symptoms of dissociative identity disorder.
Analyzed the performance of TOMM-1 and M-FAST cutoffs in detecting feigning.
Compared individual and combined effectiveness of both tests.
Focused on cases of simulated and clinical dissociative identity disorder.
Using TOMM-1 cutoff of ≤41 and M-FAST cutoff of ≥6 improves detection of feigned symptoms.
Chaining multiple validity tests enhances identification of dissociative identity disorder.

Abstract

Findings suggest that using the well-established TOMM-1 cutoff of ≤41 and M-FAST cutoff of ≥6 together versus independently can help detect feigned DID symptoms. Chaining multiple validity tests may therefore be a useful way to improve the detection of feigned symptoms in DID evaluations. (PsycInfo Database Record (c) 2026 APA, all rights reserved).

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