Alcohol and Drug Research Western Norway, Stavanger University Hospital, Norway.
Addict Behav. 2013 Oct;38(10):2500-5. doi: 10.1016/j.addbeh.2013.05.002. Epub 2013 May 9.
The aim of the study was to examine the psychometric properties of the CRAFFT-questionnaire, and its concurrent validity with self-reported measures of alcohol consumption and illicit drug use ever among Norwegian adolescents. This study employs data from the ung@hordaland survey (N=9680). The concurrent validity of the CRAFFT-questionnaire was examined both as a case-finder with different cut-offs, but also as an ordinal scale. The ordinal scale was constructed by counting the number of affirmative responses from 0 to 6. Current self-reported excessive alcohol consumption, frequent binge drinking and any illicit drug use ever were employed as concurrent validity measures. The internal reliability of CRAFFT was adequate, and there was a linear relationship between CRAFFT-score and excessive alcohol consumption, frequent binge drinking and illicit drug use ever for both genders. Overall, this study shows a good concurrent validity and adequate psychometric properties of the CRAFFT-questionnaire. There results indicate, however, that the use of CRAFFT as a case-finder needs further research, as a suitable cut-point was difficult to determine. The authors conclude that in a clinical setting one positive answer is enough to warrant further investigation, and for research purposes the use of the questionnaire as an ordinal scale or using a cut-point of 2 might be preferable.
本研究旨在检验 CRAFFT 问卷的心理测量特性及其与挪威青少年自我报告的酒精摄入和非法药物使用的同时效度。本研究使用 ung@hordaland 调查的数据（N=9680）。通过不同的截断值，CRAFFT 问卷作为一种病例发现工具，以及作为一个有序量表，都对其同时效度进行了检验。有序量表是通过从 0 到 6 计算肯定回答的数量来构建的。当前的自我报告的过度饮酒、频繁狂饮和任何非法药物使用都被用作同时效度的衡量标准。CRAFFT 的内部可靠性是足够的，对于男性和女性来说，CRAFFT 评分与过度饮酒、频繁狂饮和非法药物使用之间都存在线性关系。总的来说，这项研究表明 CRAFFT 问卷具有良好的同时效度和足够的心理测量特性。然而，研究结果表明，CRAFFT 作为一种病例发现工具的使用需要进一步研究，因为很难确定合适的截断值。作者得出结论，在临床环境中，一个肯定的回答足以证明需要进一步调查，而对于研究目的，使用问卷作为有序量表或使用 2 的截断值可能更可取。
