Psychometric Properties of the MMPI-2-RF Somatic Complaints (RC1) Scale

Autor/inn/en	Thomas, Michael L.; Locke, Dona E. C.
Titel	Psychometric Properties of the MMPI-2-RF Somatic Complaints (RC1) Scale
Quelle	In: Psychological Assessment, 22 (2010) 3, S.492-503 (12 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1040-3590
DOI	10.1037/a0019229
Schlagwörter	Seizures; Patients; Measures (Individuals); Factor Analysis; Psychometrics; Item Response Theory; Epilepsy; Video Technology; Diagnostic Tests; Brain; Goodness of Fit; Symptoms (Individual Disorders); Personality Measures; Minnesota Multiphasic Personality Inventory + Suchen Sie Ihr Suchwort? Anfallsleiden; Patient; Messdaten; Faktorenanalyse; Psychometry; Psychometrie; Item-Response-Theorie; Epilepsie; Diagnostic test; Diagnostischer Test; Gehirn; Psychiatrische Symptomatik
Abstract	The MMPI-2 Restructured Form (MMPI-2-RF; Tellegen & Ben-Porath, 2008) was designed to be psychometrically superior to its MMPI-2 counterpart. However, the test has yet to be extensively evaluated in diverse clinical settings. The purpose of this study was to examine the psychometric properties of the MMPI-2-RF Somatic Complaints (RC1) scale in a clinically relevant population. Participants were 399 patients diagnosed with either epilepsy or psychogenic nonepileptic seizures on the basis of video-electroencephalograph monitoring. The internal structure of the MMPI-2-RF was evaluated using taxometric, confirmatory factor analysis, and item response theory procedures. Data from 4 content-specific scales directly related to RC1 (Malaise, Gastrointestinal Complaints, Head Pain Complaints, and Neurological Complaints) indicated that the latent construct of somatization is a dimensional variable with a bifactor structure. However, consistent with the scale's construction, a unidimensional model also provided adequate fit. A 2-parameter logistic item response theory model better accounted for observed item responses than did 1- or 3-parameter models. Results suggest that the RC1 scale is most precise for T score estimates between 55 and 90. Overall, the scale appears to be well suited for the assessment of somatization. (Contains 6 figures and 4 tables.) (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10