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One goal of an empirically oriented psychotherapist is to implement the same psychotherapy across similar clients for a similar specified problem. Adherence to a specified treatment is imperative when following a treatment manual. In other cases, such as when developing a new treatment, psychotherapists desire that the intervention be different from those currently available. To develop new treatments and to substantively increase the arsenal of psychological "tools" available to alleviate human suffering, criteria by which treatments are judged to be novel must be developed. The authors discuss criteria to make such delineations. They argue that psychotherapies are defined by two key properties: (a) a mechanism or mechanisms that causally produce the treatment's effects (if any) and (b) a manner or manners of instantiating these mechanisms. They also argue that if two psychotherapies share these two properties, then they are the same treatment: if not, they should be considered different treatments.

The enormous popularity recently achieved by Eye Movement Desensitization and Reprocessing (EMDR) as a treatment for anxiety disorders appears to have greatly outstripped the evidence for its efficacy from controlled research studies. The disparity raises disturbing questions concerning EMDR's aggressive commercial promotion and its rapid acceptance among practitioners. In this article, we: (1) summarize the evidence concerning EMDR's efficacy; (2) describe the dissemination and promotion of EMDR; (3) delineate the features of pseudoscience and explicate their relevance to EMDR; (4) describe the pseudoscientific marketing practices used to promote EMDR; (5) analyze factors contributing to the acceptance of EMDR by professional psychologists; and (6) discuss practical considerations for professional psychologists regarding the adoption of EMDR into professional practice. We argue that EMDR provides an excellent vehicle for illustrating the differences between scientific and pseudoscientific therapeutic techniques. Such distinctions are of critical importance for clinical psychologists who intend to base their practice on the best available research.

This study presents a survey of general characteristics of empirically supported treatments (ESTs) identified by the American Psychological Association Division 12 Task Force on the Promotion and Dissemination of Psychological Procedures. Results indicate that the ESTs share the following characteristics: they involve skill building, have a specific problem focus, incorporate continuous assessment of client progress, and involve brief treatment contact, requiring 20 or fewer sessions. Traditional assessment methods, such as intelligence testing, projectives, and objective personality tests such as the MMPI-2, are rarely used in these treatments. Although it is recognized that these findings are in part an artifact of sociological factors present in contemporary psychotherapy development and research, the findings may also serve as a heuristic aid in the development of therapies.

There are nine major diagnostic categories of male sexual dysfunction in the DSM-IV. Psychotherapy outcome studies focusing on these problems are reviewed. Currently, there appears to be little evidence that effective psychological interventions exist for these problems. Reasons for this include numerous methodological problems of existing research, effect sizes that are not clearly clinically significant, lack of compelling follow-up data indicating durability of treatment gains, and lack of treatment manuals that allow replication. Also, some disorders have been ignored by researchers. Guidelines for sample selection and description, assessment and diagnosis, and research design are provided.

The increasing recognition of the significant incidence of female sexual dysfunction as well as the increasing acceptance of sex therapy as the preferred option for addressing problems in sexual functioning give rise to questions as to effectiveness of psychotherapy for female sexual dysfunction. This article presents a review of empirical studies of the treatment of female sexual dysfunction that meet minimal methodological criteria. Because of the variety and seriousness of methodological problems in the studies reviewed, guidelines for sample selection and description, research design, assessment and classification, and data analysis are provided. In addition, the 21 studies reviewed are examined for information they give about the treatment of female sexual dysfunction.

The arguments in favor of therapeutic integration are summarized and evaluated. Weaknesses of the position are: (1) the false claim that all therapies are equally effective; (2) the lack of a clear and accurate specification of what makes a school of therapy "legitimate"; (3) the lack of a clear case for an accurate and comprehensive list of common elements across therapies; (4) a lack of clarity concerning "clinical strategy"; (5) the incorrect claim that cognitive therapy provides a useful and neutral meta-language; (6) inadequate evidence of trends toward integration; (7) fallacious reasoning based on these alleged trends; and (8) a misunderstanding of the history and philosophy of science.

Is the clinical psychologist best characterized as a scientist-practitioner? Or does the practice of science and psychotherapy involve metaphysics to such an extent that the clinical psychologist ought to be considered a metaphysician-scientist-practitioner? To answer these questions, the roles, if any, of metaphysics in science and psychotherapy are examined. This article investigates this question by examining the views of the logical positivists, Karl Popper and Imre Lakatos, and concludes that the practice of science and psychotherapy involves metaphysics in (a) problem choice, (b) research and therapy design, (c) observation statements, (d) resolving the Duhemian problem, and (e) modifying hypotheses to encompass anomalous results.