Translation and psychometric analysis of the brief symptom inventory (BSI-18) adolescent with post-rehabilitation of substance used disorder
Tuty Yanuarti 1,2, Mohd Nazri Bin Mohd Daud1, Noor Hassline Binti Mohamed1 Azman Bin Atil1

1 Rehabilitation Medicine Unit, Faculty of Medicine and Health Sciences, Universiti Malaysia Sabah, Malaysia
2 Department Kebidanan, STIKES Abdi Nusantara, Indonesia


Abstract

Background: The Brief Symptom Inventory-18 (BSI-18) is an 18- item self-report checklist measures developed as a brief screen for psychological symptoms in medical patients. Application of the BSI-18 to adolescent with post-rehabilitation of substance used disorder is supported by its brevity, its coverage of the critical areas of anxiety and depression, and the published manual^s inclusion of normative data for an adolescent with post-rehabilitation of substance used disorder sample.
Objectives: The purpose of this research was to evaluate the BSI psychometric properties among a representative sample of adolescent in Indonesia.
Methods: The 80 adolescents enrolled to this study were 15-18 years old. Subjects were recruited from drug rehabilitation center in West Java, Indonesia. This instrument was translated into Bahasa Indonesia in four stages: forward translation, reverse translation by an expert group, pre-testing, and cognitive interviews. To calculate the content validity index, we applied Aiken^s V formula. Exploratory factor analysis (EFA) and Confirmatory factor analysis (CFA) was utilized so that the factor structure of BSI could be determined. This study used Cronbach alpha coefficient to determine its reliability.
Results: The CVI ranged from 0.73 to 1.00 for BSI. The factors loadings of each of the three scales in the BSI was ranged from 0.43 and 0.88. The model was acceptable and appropriate when confirmatory factor analyses of the BSI were conducted. The Cronbach alpha coefficient of the BSI was 0.925.
Conclusion: The findings of this study give evidence that the BSI is a viable and useful screening tool to detect substance use problems among Indonesian adolescent. Future studies to assess its sensitivity and specificity is needed to provide more comprehensive validate tool of BSI.

Keywords: Cross-Culture Adaptation, Validation, BSI, Substance Abuse, adolescents, Indonesia

Topic: Caring for Communicable and Non-Communicable Diseases

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