Reliability of a questionnaire on substance use among adolescent students, Brazil

Revista de Saúde Pública

Adelmo De Souza Machado Neto²  Tarcisio Matos Andrade²  Gilênio Borges Fernandes¹  Helder Paulo Zacharias¹  Fernando Martins Carvalho¹  Ana Paula Souza Machado¹  Ana Carmen Costa Dias¹  Ana Carolina Rocha Garcia¹  Lauro Reis Santana²  Carlos Eduardo Rolin²  Cyntia Sampaio²  Gisele Ghiraldi²  Francisco Inácio Bastos¹ 

[1] ,Universidade Federal da Bahia Faculdade de Medicina da Bahia Departamento de MedicinaSalvador BA ,Brasil

关键词: Questionnaires;    Adolescent;    Adolescent Behavior;    Illicit drugs;    Reproducibility of Results;    Questionários;    Adolescente;    Comportamento do Adolescente;    Drogas Ilícitas;    Reprodutibilidade dos Testes;    Cuestionario;    Adolescente;    Conducta del Adolescente;    Drogas Ilícitas;    Reproducibilidad de Resultados;   

DOI  :  10.1590/S0034-89102010000500008

来源: SciELO

【 摘 要 】

OBJECTIVE: To analyze reliability of a self-applied questionnaire on substance use and misuse among adolescent students. METHODS: Two cross-sectional studies were carried out for the instrument test-retest. The sample comprised male and female students aged 1119 years from public and private schools (elementary, middle, and high school students) in the city of Salvador, Northeastern Brazil, in 2006. A total of 591 questionnaires were applied in the test and 467 in the retest. Descriptive statistics, the Kappa index, Cronbach's alpha and intraclass correlation were estimated. RESULTS: The prevalence of substance use/misuse was similar in both test and retest. Sociodemographic variables showed a "moderate" to "almost perfect" agreement for the Kappa index, and a "satisfactory" (>0.75) consistency for Cronbach's alpha and intraclass correlation. The age which psychoactive substances (tobacco, alcohol, and cannabis) were first used and chronological age were similar in both studies. Test-retest reliability was found to be a good indicator of students' age of initiation and their patterns of substance use. CONCLUSIONS: The questionnaire reliability was found to be satisfactory in the population studied.

【 授权许可】

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