Validity and reliability of the Severity of Dependence Scale (SDS) in a Brazilian sample of drug users

Validity and reliability of the Severity of Dependence Scale (SDS) in a Brazilian sample of drug users

Autor Ferri, C. P. Google Scholar
Marsden, J. Google Scholar
Araujo, M. de Google Scholar
Laranjeira, R. R. Google Scholar
Gossop, M. Google Scholar
Instituição Maudsley Hosp
Universidade Federal de São Paulo (UNIFESP)
Resumo The Severity of Dependence Scale (SDS) is a short, five-item scale which provides a measure of degree of dependence upon different drugs. the present study explores the validity and reliability of a Portuguese version of the instrument with a sample of 374 Brazilian drug users. Concurrent validity of the SDS was assessed in relation to reported quantity of drugs used and to DSM-IV dependence items, and test-retest reliability was assessed with a subsample of 42 subjects. the SDS total scores for powder cocaine, crack cocaine, cannabis and alcohol were significantly and highly positively correlated with severity of dependence as measured by DSM-IV, and with the estimated quantity of drugs used in the last month. Test-retest coefficients were high for all drugs studied. Principal components analysis showed that the SDS scores lie on a single dimension with the exception of crack cocaine where scores lie on a single dimension for treatment attenders and on two dimensions for community samples. the results indicate that the Portuguese version of the SDS is a valid research tool for measuring severity of dependence upon powder cocaine (snorted), crack cocaine (smoked), cannabis and alcohol.
Palavra-chave Brazil
construct validity
DSM-IV
SDS
severity of dependence
test-retest reliability
Idioma Inglês
Data de publicação 2000-12-01
Publicado em Drug and Alcohol Review. Basingstoke: Carfax Publishing, v. 19, n. 4, p. 451-455, 2000.
ISSN 0959-5236 (Sherpa/Romeo, fator de impacto)
Publicador Carfax Publishing
Extensão 451-455
Fonte http://dx.doi.org/10.1080/713659418
Direito de acesso Acesso restrito
Tipo Artigo
Web of Science WOS:000165996100012
Endereço permanente http://repositorio.unifesp.br/handle/11600/26427

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