“…K. Shapiro, 1971;Strupp, 1986;Thorne, 1952;White, Tursky, & Schwartz, 1985;Wilkins, 1979Wilkins, , 1984. Much of this interest has been generated by the oft-cited "dodo bird verdict" that all treatments are equally effective (Beutler, 1991;Luborsky et al, 1975;Wampold et al, 1997).…”