Abstract

EBM, and the hierarchy of evidence it prescribes, is a controversial model when it comes to research into the effectiveness of psychotherapeutic treatments. This is due in part to the so-called ‘Dodo Bird verdict’, which claims that all psychotherapies are equally effective, and that their effectiveness is largely due to the placebo effect. In response to this controversy, I argue that EBM can nevertheless be made to fit research into the effectiveness of psychotherapy, once a piecemeal approach to conducting RCTs is taken. Such an approach involves studying the contributions made by individual treatment components.