Etiology of drug abuse. Implications for prevention.

Abstract

relevant patterns (e.g., identify the relevant variables); Develop useful classification systems (e.g., further codification, definition, and grouping of the relevant variables); Develop instruments and protocols to recognize, measure, or quantify the relevant variables and dynamics referred to above (Note: One should not avoid the challenge by developing instruments to measure factors less significant and relevant because they are easier to develop and validate.); Describe variations in these classified patterns under natural and (e.g., intervention) conditions; Develop new special conditions (e.g., interventions) at a