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
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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