Over the past few years evidence-based practice has become of central concern to health and social services in this country. The fundamental tenant is that there must be a clear link between professional practice and its research base. This paper outlines the concept of evidence-based practice and how it rests on the concept of good quality…

Information-processing students solving problems in the 1960s and 1970s accepted the tradition of early experimental psychology in concentrating primarily on the study of "knowledge-lean" tasks in which competence can usually be acquired over short periods of learning and experience. In recent years, experts have examined knowledge-rich…