“…Participants in this discussion have attempted to move toward these objectives by identifying those research areas and methodologies most appropriate for naturalistic research by practitioners. Representative research models of this kind include, but are not limited to, (a) innovative qualitative or quantitative (pre-experimental, quasi-experimental, or experimental) case studies, where the focus is to describe and pretest or test new interventions, new hypotheses, and unusual clinical phenomena (Davison & Lazarus, 1994;Fishman, 2000;Hayes, Barlow, & Nelson-Gray, 1999;Messer, 2000; including new integrative approaches, e.g., Lampropoulos & Nicholas, 2001); (b) small N quasi-experimental or experimental designs, where the practicing clinician can pre-test or test specific hypotheses of interest (e.g., a 2 ϫ 2 aptitude-treatment interaction design with four participants; Heiby, 1986); (c) medium N effectiveness research, where a clinician can evaluate his or her own practice over a period of time (e.g., Lambert et al, 1998;Persons, Bostrom, & Bertagnolli, 1999); large N clinical utility programmatic research through local practitioner networks, where a group of clinicians in one or more naturalistic settings can evaluate their clinical practices (i.e., effectiveness of same or different models of therapy, manualized or not manualized), as well as test specific hypotheses in quasi-experimental designs (Arnkoff, Glass, Opazo, Caspar, & Lampropoulos, 2000;Borkovec et al, 2001;Pekarik & Mangione, 1999).…”