Evaluation Research in Demand Reduction Planning (From ONDCP International Workshop: Drug Abuse Treatment Technology Proceedings, 1995, P 3-67 - 3-92)

• NCJ Number: 163303
• Author(s): J J Platt; M Widman; V Lidz
• Date Published: 1996
• Length: 26 pages
• Sponsoring Agency: Office of National Drug Control Policy
• Sale Source: NCJRS Photocopy Services; Office of National Drug Control Policy
• Publication Type: Issue Overview
• Language: English
• Country: United States of America
• Note: DCC

Annotation

This is a review of evaluation research methods and their use in demand reduction planning.

Abstract

Types of evaluation research include: (1) Formative (exploratory research), which provides information to guide planning, development, or implementation of a specific program; is always prospective; and includes needs assessments; (2) Process, which examines whether or not the services which should have been provided, were provided; can be prospective or retrospective; and (3) Outcome, which explores the effect of the program on the participants, on society, or on others; can be prospective or retrospective; includes evaluation of goals achievement, cost-effectiveness or cost-benefit analysis, and impact evaluation. The methods used in Outcome Research are True Experimental Designs including randomized control trial and cross-over design and Quasi-Experimental Designs, which include cohort studies, prospective survey, and before-after design. The major strengths and weaknesses of both methods are discussed, as are problems encountered in treatment outcome studies. Recommendations for evaluation studies are listed.