This book presents the findings of a Joint Presidential Task Force of the Society of Clinical Psychology (Division 12 of APA) and of the North American Society for Psychotherapy Research. This task force was charged with integrating two previous task force findings which addressed, respectively, Treatments That Work (Division 12, APA), and Relationships That Work (Division 29, APA). This book transcends particular models of psychotherapy and treatment techniques to define treatments in terms of cross-cutting principles of therapeutic change. It also integrates relationship and participant factors with treatment techniques and procedures, giving special attention to the empirical grounding of multiple contributors to change. The result is a series of over 60 principles for applying treatments to four problem areas: depression, anxiety disorders, personality disorders, and substance abuse disorders. This book explains both principles that are common to many problem areas and those that are specific to different populations in a format that is designed to help the clinician optimize treatment planning.

*Updated, expanded text and reference: 50% new material includes new chapters on sexual dysfunction, sleep disorders, and suicide. *Explicit linkages between research and clinical practice are what set this book apart from the competition. *Utility is enhanced by the book's manageable size and its focus on the most commonly seen disorders. *From award-winning editors and contributors.

Principles of Change constitutes a new approach to evidence-based practice in psychotherapy that goes beyond the traditional and unidirectional dissemination of research, whereby clinicians are typically viewed as passive recipients of scientific findings. Based on an extensive review of literature, it first offers a list of 38 empirically based principles of change grouped in five categories: client prognostic, treatment/provider moderating, client process, therapeutic relationship, and therapist interventions. Six therapists from diverse theoretical orientations then describe, in rich and insightful detail, how they implement each of these principles. The book also offers exchanges between researchers and clinicians on several key issues, including: how similarly and differently change principles are addressed or used across a variety of treatments; and how clinicians' observations and reflections can guide future research. By presenting together these unique yet complementary experiences, Principles of Change will support synergetic advances in understanding and improving psychotherapy, laying the foundation for further collaborations and partnerships between stakeholders in mental health services.

Some therapists are more effective than others, that much is clear; why they are more effective is less clear. Editors Louis Castonguay and Clara Hill have gathered a panel of expert researchers and practitioners from diverse theoretical backgrounds to answer this complicated question. Synthesizing the rich literature on therapist effects in this comprehensive volume, they explore how various effects can help or hinder clients in therapy. They then propose practical strategies that mental health practitioners can use to improve their own effectiveness. Castonguay, Hill, and their contributors first lay the empirical foundations for understanding therapist effects and why they are important. They also acknowledge the massive variability that exists among therapists and the complexities of studying therapist effects. Drawing from this fundamental knowledge, they then carefully examine specific therapist characteristics, attitudes, and skills that are relevant in any therapeutic setting. Topics include: therapists' responsiveness, presence, attachment, and technical interventions cultural factors negative emotions humor creativity Exciting new studies about therapist effects in the treatment of specific disorders, including depression and generalized anxiety, are also presented. The closing chapters translate the book's general themes and takeaways into broader applications for research, intervention, training, and policy, including the role of routine outcome monitoring.