Psychometric Properties of the Schedule for Nonadaptive and Adaptive Personality in a PTSD Sample

Autor/inn/en	Wolf, Erika J.; Harrington, Kelly M.; Miller, Mark W.
Titel	Psychometric Properties of the Schedule for Nonadaptive and Adaptive Personality in a PTSD Sample
Quelle	In: Psychological Assessment, 23 (2011) 4, S.911-924 (14 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1040-3590
DOI	10.1037/a0023985
Schlagwörter	Personality Problems; Posttraumatic Stress Disorder; Validity; Psychopathology; Psychometrics; Personality Measures; Questionnaires; Measures (Individuals); Veterans; Tests; Scores; Incidence; Correlation; Severity (of Disability); Statistical Analysis; Multidimensional Personality Questionnaire + Suchen Sie Ihr Suchwort? Gültigkeit; Psychopathologie; Psychometry; Psychometrie; Fragebogen; Messdaten; Kriegsteilnehmer; Veteran; Examination; Prüfung; Examen; Vorkommen; Korrelation; Schweregrad; Statistische Analyse
Abstract	This study evaluated the psychometric characteristics of the Schedule for Nonadaptive and Adaptive Personality (SNAP; Clark, 1996) in 280 individuals who screened positive for posttraumatic stress disorder (PTSD). The SNAP validity, trait, temperament, and personality disorder (PD) scales were compared with scales on the Brief Form of the Multidimensional Personality Questionnaire (Patrick, Curtin, & Tellegen, 2002). In a subsample of 86 veterans, the SNAP PD, trait, and temperament scales were also evaluated in comparison to the International Personality Disorder Examination (IPDE; Loranger, 1999), a semistructured diagnostic interview. Results revealed that the SNAP scales have good convergent validity, as evidenced by their pattern of associations with related measures of personality and PD. However, evidence for their discriminant validity in relationship to other measures of personality and PD was more mixed, and test scores on the SNAP trait and temperament scales left much unexplained variance in IPDE-assessed PDs. The diagnostic scoring of the SNAP PD scales greatly inflated prevalence estimates of PDs relative to the IPDE and showed poor agreement with the IPDE. In contrast, the dimensional SNAP scores yielded far stronger associations with continuous scores on the IPDE. The SNAP scales also largely evidenced expected patterns of association with a measure of PTSD severity. Overall, findings support the use of this measure in this population and contribute to our conceptualization of the association between temperament, PTSD, and Axis II psychopathology. (Contains 5 tables and 1 figure.) (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10