title: Psychometric properties of alcohol screening tests in the emergency department in Argentina, Mexico and the United States.
abstract: The objective of this article is to report psychometric characteristics of the AUDIT, CAGE, RAPS4, and TWEAK and to compare them across three countries: Argentina, Mexico, and the United States which used a similar protocol and methodology. Probability samples of patients 18 years and older were drawn from emergency departments in Mar del Plata, Argentina (n=780), Pachuca, Mexico (n=1624) and Santa Clara, U.S. (n=1220). Concurrent validity was assessed by comparing their performance against a diagnosis of alcohol dependence (DSM-IV) obtained through the Composite International Diagnostic Interview, and for the briefer measures, also by their correlation with the AUDIT. The internal consistency of the CAGE, RAPS4, and TWEAK scores was estimated by the KR-20 formula and by Cronbach's Alpha for the AUDIT. Corrected item-total correlation and D-values were used as item discrimination measures. In Argentina and Mexico the AUDIT and the RAPS4 showed the highest validity. Reliability of all instruments was higher in the US than in Argentina or Mexico. In all three countries, reliability of the TWEAK was lowest, while the AUDIT was highest. With a few exceptions, all items showed good discrimination powers.
authors.affiliation: Consejo Nacional de Investigaciones Científicas y Técnicas, Facultad de Psicología Universidad Nacional de Mar del Plata, Centro Interdiscipliario de Investigaciones en Psicología Matemática y Experimental, (7600) Mar del Plata, Argentina. mcremont@mdp.edu.ar
authors.forename: Mariana
authors.initials: M
authors.lastname: Cremonte
authors.forename: Rubén Daniel
authors.initials: RD
authors.lastname: Ledesma
authors.forename: Cheryl J
authors.initials: CJ
authors.lastname: Cherpitel
authors.forename: Guilherme
authors.initials: G
authors.lastname: Borges
mesh_terms: D000328:Adult; D019973:Alcohol-Related Disorders / Q000175:diagnosis* / Q000523:psychology; D001118:Argentina; D039721:Diagnostic and Statistical Manual of Mental Disorders; D004636:Emergency Service, Hospital; D005260:Female; D006801:Humans; D008297:Male; D008403:Mass Screening / Q000592:standards*; D008800:Mexico; D011594:Psychometrics; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D011795:Surveys and Questionnaires / Q000592:standards*; D014481:United States
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