Psychometric Performance of the Miller Forensic Assessment of Symptoms Test (M-FAST) in Veteran PTSD Assessment.


Journal

Psychological injury and law
ISSN: 1938-971X
Titre abrégé: Psychol Inj Law
Pays: United States
ID NLM: 101535954

Informations de publication

Date de publication:
15 Apr 2020
Historique:
entrez: 21 5 2020
pubmed: 21 5 2020
medline: 21 5 2020
Statut: ppublish

Résumé

This study examined the psychometric properties of a widely used measure of symptom exaggeration, the Miller Forensic Assessment of Symptoms Test (M-FAST, Miller, 2001), in a sample of 209 (83.7% male) trauma-exposed veterans (57.9% probable current posttraumatic stress disorder; PTSD). M-FAST total scores evidenced acceptable internal consistency, but several subscales showed poor internal consistency. Factor analytic and item-response theory analyses identified seven poorly performing items. Comparisons with other measures of psychopathology and response validity (including subscales from the Minnesota Multiphasic Personality Inventory-2 Restructured Form) revealed that M-FAST scores were highly correlated with indices of psychopathology while less strongly associated with measures of symptom over-reporting. Empirically and clinically-derived (using a follow-up testing-the-limits procedure) revised M-FAST scores failed to improve the measure's psychometric performance. Results raise concerns about the validity of the M-FAST for identifying malingering in veterans with PTSD and carry implications for access to care and forensic evaluations in this population.

Identifiants

pubmed: 32431781
doi: 10.1007/s12207-020-09373-y
pmc: PMC7236380
mid: NIHMS1570489
doi:

Types de publication

Journal Article

Langues

eng

Subventions

Organisme : Intramural VA
ID : VA999999
Pays : United States

Déclaration de conflit d'intérêts

Conflict Of Interest – none

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Auteurs

Erika J Wolf (EJ)

National Center for PTSD at VA Boston Healthcare System.
Boston University School of Medicine, Department of Psychiatry.

Stephanie Ellickson-Larew (S)

National Center for PTSD at VA Boston Healthcare System.

Rachel E Guetta (RE)

National Center for PTSD at VA Boston Healthcare System.

Shaline Escarfulleri (S)

National Center for PTSD at VA Boston Healthcare System.

Karen Ryabchenko (K)

National Center for PTSD at VA Boston Healthcare System.
Boston University School of Medicine, Department of Psychiatry.

Mark W Miller (MW)

National Center for PTSD at VA Boston Healthcare System.
Boston University School of Medicine, Department of Psychiatry.

Classifications MeSH