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The Homogeneity of the Alcohol Dependence Syndrome: a factorial analysis of the SADD questionnaire
Author(s) -
DAVIDSON ROBIN,
BUNTING BRENDAN,
RAISTRICK DUNCAN
Publication year - 1989
Publication title -
british journal of addiction
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.424
H-Index - 193
eISSN - 1360-0443
pISSN - 0952-0481
DOI - 10.1111/j.1360-0443.1989.tb00763.x
Subject(s) - homogeneity (statistics) , factorial analysis , exploratory factor analysis , confirmatory factor analysis , psychology , alcohol , factorial , factorial experiment , validation test , psychometrics , clinical psychology , statistics , test validity , structural equation modeling , chemistry , mathematics , biochemistry , mathematical analysis
Summary The Severity of Alcohol Dependence Data (SADD) questionnaire was administered under different conditions to three groups of patients in Leeds, Deny and Omagh. The results were then factor analysed using both exploratory and confirmatory procedures. There was a consistent and strong first factor which suggests that with some small modifications the SADD is a unidimensional scale. The results are interpreted as providing further evidence for the homogeneity of the alcohol dependence syndrome.