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Original Article

The Validity and Reliability of Self-Reported Data from Heroin Addicts: Mailed Questionnaires Compared with Face-to-Face Interviews

Pages 993-1000 | Published online: 03 Jul 2009
 

Abstract

Immediately following receipt of their 1-year follow-up mailed questionnaire, 55 former patients from an addiction treatment program were interviewed personally, and a urine sample was collected. Results indicate a high degree of correspondence of self-reported drug use with the urinalysis reports, and moderately

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