Collaboration in the new millennium

The presidential addresses of the Society for Psychotherapy Research (SPR) of the past decade convey a consistency of format and themes. They highligh t significant weaknesses in some of the basic questions and methodologies o f psychotherapy researchers. These include neglect of topics concerning the understanding of change and over-valuation of the randomized clinical tria l (RCT). Although valid, the criticisms neglect the strengths of RCTs, whic h are illustrated by a series of psychotherapy clinical trials conducted by the author's research team, and run the risk of polarizing psychotherapy r esearchers. The new millennium is an appropriate time to acknowledge how di fferent methodologies complement each other and advance knowledge in ways t hat could not occur in the absence of others. SPR is an international, mult idisciplinary scientific organization that emphasizes inclusiveness. Nevert heless, it, as well as other organizations, can further enhance its contrib ution to the field by extending its range of collaboration to include under represented researchers. disciplines, and research-oriented clinicians.