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

2 de janeiro de 20104min13
Cleusa P. Ferri;  John Marsden;  Marcelo de Araujo;  Ronaldo R. Laranjeira; Michael Gossop
DOI: 10.1080/713659418
Publication Frequency: 6 issues per year

Published in: journal Drug and Alcohol Review, Volume 19, Issue 4 December 2000 , pages 451 – 455
Number of References: 13
Formats available: PDF (English)

The circumstances under which this title is published have changed:

Reason for change: Changed Publisher
Now published by: Wiley-Blackwell Publishing Ltd
Date of change: 2009

  • In order to give pricing details we need to know your country. Please register and/or sign in to identify your country.


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. [Ferri CP,Marsden J, de Araujo M, Laranjeira RR, Gossop M. Validity and reliability of the Severity of Dependence Scale (SDS) in a Brazilian sample of drug users. Drug Alcohol Rev 2000;19:451-455]

Keywords: Brazil; Construct; Validity; Dsm-IV; Sds; Severity; Of; Dependence; Test-RETEST; Reliability
view references (11) : view citations

Sobre a UNIAD

A Unidade de Pesquisa em álcool e Drogas (UNIAD) foi fundada em 1994 pelo Prof. Dr. Ronaldo Laranjeira e John Dunn, recém-chegados da Inglaterra. A criação contou, na época, com o apoio do Departamento de Psiquiatria da UNIFESP. Inicialmente (1994-1996) funcionou dentro do Complexo Hospital São Paulo, com o objetivo de atender funcionários dependentes.


    Skip to content