Journal article
Longitudinal Construct Validity of Brief Symptom Inventory Subscales in Schizophrenia
Psychological assessment, Vol.19(3), pp.298-308
09/2007
DOI: 10.1037/1040-3590.19.3.298
PMID: 17845121
Abstract
Longitudinal validity of Brief Symptom Inventory subscales was examined in a sample (
N
= 318) with schizophrenia-related illness measured at baseline and every 6 months for 3 years. Nonlinear factor analysis of items was used to test graded response models (GRMs) for subscales in isolation. The models varied in their within-time and between-times parameter constraints, with the homogeneous model being the least constrained, followed by the 2-parameter GRM and 1-parameter GRM. Results show that 4 subscales (Interpersonal Sensitivity, Hostility, Paranoid Ideation, Psychoticism) were consistent with the 1-parameter GRM, and 5 subscales (Somatization, Obsessive-Compulsive, Depression, Anxiety, Phobic Anxiety) were consistent with the 2-parameter GRM. There is evidence that the 9 subscales may be validly used to study change in single constructs over time.
Details
- Title: Subtitle
- Longitudinal Construct Validity of Brief Symptom Inventory Subscales in Schizophrenia
- Creators
- Jeffrey D Long - University of MinnesotaJeffrey R Harring - University of MinnesotaJohn S Brekke - University of Southern CaliforniaMary Ann Test - University of Wisconsin–MadisonJan Greenberg - University of Wisconsin–Madison
- Resource Type
- Journal article
- Publication Details
- Psychological assessment, Vol.19(3), pp.298-308
- Publisher
- American Psychological Association
- DOI
- 10.1037/1040-3590.19.3.298
- PMID
- 17845121
- ISSN
- 1040-3590
- eISSN
- 1939-134X
- Grant note
- DOI: 10.13039/100000025, name: National Institute of Mental Health, award: R01 MH53282; R29 MH43640, R01 MH55928
- Language
- English
- Date published
- 09/2007
- Academic Unit
- Psychiatry; Biostatistics
- Record Identifier
- 9984280870102771
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