Needs assessment in substance misuse: a comparison of approaches and case study.

Public policy practitioners are often confronted with the problem of "needs assessment." But needs can be defined and measured in many ways, and often in pursuit of fundamentally different ends. This paper provides a brief paradigmatic comparison of two alternative approaches to the problem of needs assessment in the area of substance misuse, and it concludes with a case study describing the implementation of a model developed by the New York State Division of Substance Abuse Services.