期刊
TRENDS IN PSYCHIATRY AND PSYCHOTHERAPY
卷 44, 期 -, 页码 -出版社
ASSOC PSIQUIATRIA RIO GRANDE SUL
DOI: 10.47626/2237-6089-2021-0207
关键词
Psychological factors; reproducibility of results; mental disorders; psychometrics
类别
资金
- Ministerio da Saude
- Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior (CAPES)
- Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq) [401542/2020-3]
- Panamerican Health Organization (PAHO) [SCON2020-00202]
The study examined the replicability of the internal structure of the Brief Symptom Inventory in a large Brazilian sample and found that the general factor was the main dimension explaining most of the reliable variability in the data.
Introduction: The existence of a general factor related to psychiatric symptoms is supported by studies using a variety of methods in both clinical and non-clinical samples. Objectives: This study aims to evaluate the replicability of the internal structure of the Brief Symptom Inventory in a large Brazilian sample. Methods: Participants were 6,427 Brazilian subjects (81% female). Mean age was 42.1 years (standard deviation [SD] = 13.6, Min = 13, Max = 80). All participants completed the online version of the Brief Symptom Inventory. This scale presents a general score (GSI) and nine specific clusters of symptoms (depression, anxiety, phobic anxiety, interpersonal sensibility, psychoticism, paranoid ideation, obsessivecompulsive behavior, hostility, and somatization symptoms). Results: Confirmatory factor analysis was performed to assess the factor structure of the BSI. The results showed that the best-fitting model was a bifactor solution and the general factor was the main dimension explaining most of the reliable variability in the data. Conclusion: The findings suggest that the BSI's internal structure was replicated in a non-clinical sample and that the general factor is the most reliable score. However, it is necessary to better understand the meaning of the general factor scores in a non-clinical sample to increase interpretability of scores.
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