Abstract

The evidence-based practice movement fails to pay attention to and to respect sufficiently the fundamental differences that exist between clinical practice and the kind of research that is modeled on the natural sciences. According to M. Polanyi knowledge, will always have a tacit dimension that is not possible to operationally define. This paper argues that the tacit dimension is especially important in clinical knowledge. This represents a challenge to the dominance of positivism and to the evidence-based practice movement. As psychiatrists, we must be able to attend to the patient's perspective, his subjective experience and context. Clinical practice is a careful balance between dialogue and technique. Evidence-based psychiatry might tilt this balance toward a more technical attitude. This could pose problems, considering the importance of the so-called nonspecific factors in psychotherapy.