Historique
Article de Périodique
The Cannabis Problems Questionnaire: Factor structure, reliability, and validity (2005)
Auteur(s) :
COPELAND, J. ;
GILMOUR, S. ;
GATES, P. ;
SWIFT, W.
Année
2005
Page(s) :
313-319
Langue(s) :
Anglais
Domaine :
Drogues illicites / Illicit drugs
Thésaurus mots-clés
SENSIBILITE
;
CANNABIS
;
QUESTIONNAIRE
;
TEST
;
FIABILITE
;
VALIDITE
Thésaurus géographique
AUSTRALIE
Résumé :
Aim: To develop a multi-dimensional valid and reliable measure of cannabis-related problems.
Method: The Cannabis Problems Questionnaire (CPQ) was developed from the Alcohol Problems Questionnaire to measure cannabis treatment outcome. The CPQ was administered on two occasions 1 week apart to a stratified sample of adults who had used cannabis at least once in the previous 3 months. Exploratory factor analyses were conducted and the relationship between items of the CPQ and measures of daily use and dependence assessed. The reliability of the CPQ was also assessed using a test-retest and inter-rater reliability methodology.
Results: Exploratory factor analyses revealed a three factor solution best described the data accounting for 57% of the variance in the larger item set. The CPQ is highly reliable with test-retest tetrachoric correlations of between 0.92 and 1.00 and inter-rater reliability correlations between 0.74 and 1.00. The total CPQ score classified DSM-IV cannabis dependence with 84% specificity and sensitivity and daily cannabis use with 83% specificity and 55% sensitivity.
Conclusions: The 22-item CPQ is a valid, reliable and sensitive measure of cannabis-related problems for use with clinical and research populations of current cannabis users.
Method: The Cannabis Problems Questionnaire (CPQ) was developed from the Alcohol Problems Questionnaire to measure cannabis treatment outcome. The CPQ was administered on two occasions 1 week apart to a stratified sample of adults who had used cannabis at least once in the previous 3 months. Exploratory factor analyses were conducted and the relationship between items of the CPQ and measures of daily use and dependence assessed. The reliability of the CPQ was also assessed using a test-retest and inter-rater reliability methodology.
Results: Exploratory factor analyses revealed a three factor solution best described the data accounting for 57% of the variance in the larger item set. The CPQ is highly reliable with test-retest tetrachoric correlations of between 0.92 and 1.00 and inter-rater reliability correlations between 0.74 and 1.00. The total CPQ score classified DSM-IV cannabis dependence with 84% specificity and sensitivity and daily cannabis use with 83% specificity and 55% sensitivity.
Conclusions: The 22-item CPQ is a valid, reliable and sensitive measure of cannabis-related problems for use with clinical and research populations of current cannabis users.
Affiliation :
Copeland, Jan, National Drug and Alcohol Research Centre, University of New South Wales , Sydney, NSW, Australia
Cote :
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