Psychometric properties of the Brief Symptoms Inventory-18 (BSI-18) in a Spanish sample of outpatients with psychiatric disorders
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2008
- handle: 10670/1.ttpvrz
- 0214-9915
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Yolanda Andreu et al., « Psychometric properties of the Brief Symptoms Inventory-18 (BSI-18) in a Spanish sample of outpatients with psychiatric disorders », Psicothema, ID : 10670/1.ttpvrz
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"This study analyzes the psychometric and structural properties of the BSI-18 in a sample of Spanishoutpatients with psychiatric disorders (N= 200), with three basic objectives: (a) to study the structuralvalidity of the instrument; (b) to analyse reliability (internal consistency and test-retest stability) andvalidity (convergent and discriminant) of the instrument, and (c) to evaluate sensitivity to change in atherapeutic context. Using confirmatory factor analysis, two models were tested: the three-dimensionaltheoretical model proposed by its authors, and the empirical four-factor model obtained by the sameauthors through exploratory factor analysis. Our results showed that the best structure was a fourdimensionalmodel, with the General Distress index and Somatization, Depression, General Anxietyand Panic scores. These four scales showed good internal consistency, test-retest reliability, validityand sensitivity to therapeutic change. The BSI-18 has been shown to be a reliable and useful tool forpsychiatric assessment of patients, with the added advantage provided by its simplicity and ease ofapplication."