Psychotherapy continues to progress at a remarkable rate as researchers become more creative in the development and application of a wide variety of empirically tested techniques. Older techniques have been refined and newer ones have emerged. Both old and new techniques are being quantified, assessed, and compared in group design research, and, for the first time since modern therapy's beginnings in the writings of Sigmund Freud, remarkable strides have been made in asking and answering vital questions about the effectiveness of various treatment strategies.