Psychological treatment outcomes in routine NHS services: What do we mean by treatment effectiveness?

Objectives. The question of how effective therapies are in routine practice is crucial. The answer depends on how we define effectiveness. Both the definition of who was treated and the index chosen to represent outcome can affect estimates dramatically. Design. We used data from the Clinical Outcomes in Routine Evaluation (CORE) Primary Care National Practice‐Based Evidence database‐2005 on the Clinical Outcomes in Routine Evaluation‐Outcome...