Shipping list no.: 99-0004-P."Based on the papers from a technical review ... held on July 28-29, 1994."--p. ii.Includes bibliographical references.Impact of substance abuse on federal spending -- Historical perspective on effective prevention -- School-based approaches to drug abuse prevention: evidence for effectiveness and suggestions for determining cost-effectiveness -- Effectiveness of prevention interventions with youth at high risk of drug abuse -- Costs, benefits, and cost-effectiveness of comprehensive drug abuse prevention -- Overview of methods: cost-effectiveness, cost-benefits, and cost-offsets of prevention -- Analytic issues for estimating the benefits and costs of substance abuse prevention -- Benefits and costs of a family...