Abstract

Recent efforts to improve group psychotherapy have focused on codifying both evidencebased treatments and therapeutic relationships. This chapter reviews the numerous advances in empirical research on group psychotherapy and highlights therapeutic practices ensuing from the evidence. The authors synthesize some of the most crucial development in group psychotherapy research, such as the effectiveness of group treatments, the mechanisms of change of group therapies, the components of group relationship, and issues regarding methodological problems associated with the analysis of group data.