Journal
JOURNAL OF PSYCHOSOMATIC RESEARCH
Volume 65, Issue 6, Pages 533-539Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jpsychores.2008.05.009
Keywords
Assessment; Distress; Cancer; BSI-18; Psychometrics; Spanish sample; Cancer sample
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Objective: The objective of this work was to study the psychometric and structural properties of the Brief Symptom Inventory-18 (BSI-18) in a sample of breast cancer patients (N=175). Methods: Confirmatory factor analyses were conducted. Two models were tested: the theoretical model with the original structure (three-dimensional), and the empirical model (a four-factor structure) obtained through exploratory factor analysis initially performed by the authors of the BSI-18. Results: The eligible structure was the original proposal consisting of three dimensions: somatization, depression, and anxiety scores. These measures also showed good internal consistency. Conclusion: The results Of this study support the reliability and structural validity of the BSI-18 as a standardized instrument for screening purposes in breast cancer patients, with the added benefits of simplicity and ease of application. (C) 2008 Elsevier Inc. All rights reserved.
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