“…One process study by Page (1982) showed that members of the unstructured marathon spent more than 50% of their time in this most therapeutic quadrant, ranking these interactions at the 79th percentile when compared with group norms described by Hill ( 1965). Subsequent process studies of unstructured marathon groups with male illicit drug users revealed the following: Group members ranked at the 99th percentile in time spent in the most therapeutic (confrontive) work style (Page & Bridges, 1983;Page, Davis, Berkow, & O'Leary, 1989), at the 80th percentile in time spent in the most therapeutic (relationship) content style (Page & Wills, 1983), and at the 90th percentile in the two of the four most therapeutic cells (personal-confrontive and relationship-confrontive; L. Campbell & Page, 1993). Page, Campbell, and Wilder (1994) showed that illicit drug abusers can interact in therapeutic ways without relying on group leaders to direct discussions.…”