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Identifying adult children of alcoholics: methodological review and a comparison of the CAST-6 with other methods.

Methods of identifying adult children of alcoholics are described and their psychometric properties are reviewed. These methods include self-report single questions and questionnaires and interview schedules. The CAST-6, a shortened version of the Children of Alcoholics Screening Test, is compared with a variety of these methods. The CAST-6 is confirmed as a useful brief screening measure. It was shown to be internally reliable, have good retest reliability and to agree well with other measures. Using a face to face interview as the comparison standard, however, a number of single questions performed equally as well as the CAST-6 and other more complex methods.