Follow-Up Evaluation of Drug Abuse Treatment

Abstract
Several fundamental issues in the design and planning of a follow-up evaluation are introduced. Many factors, including the design of the questionnaire, relationship to the subject, and confidentiality policies, determine both the rate and validity of the responses. Utilizing the described planning the supervision, staff time can be minimized, and estimates are given for both mailed and personal interviews. A variety of specific tracking techniques is outlined which facilitate the location of subjects who cannot be found at formerly listed addresses.

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