This paper aims at reviewing, in a critical manner, the studies on the psychotherapeutic efficacy of therapeutic models and approaches in general and the family psychotherapy in particular. The development of the psychotherapy efficacy and efficiency concept is discussed. The impact of Dodo hypotheses (Luborsky, Singer & Luborsky, 1975), which refers to the similar results of the psychotherapeutic methods, is considered. The results of the meta-statistical studies are reviewed, and their epistemological and methodological implications are discussed, relating them to the development of the psychotherapy. The need of a research development that comprises qualitative and quantitative methodologies is verified.
psychotherapy; family therapy; efficacy; efficiency; epistemology; methodology