“…Not surprisingly, how to understand and/or measure what is going on in a group challenges any research design (see for example, discussions of methodological problems in researching groupwork in Nietzel et al, 1987;Bloch, 1988;Krause and Howard, 1999;Edmonds et al, 1999;Westbury and Tutty, 1999;Borkovec and Miranda, 1999;McKenzie, 2001;Kanas, 2001). Issues of Fiona McDermott particular signifi cance include questions about research designswhether process or outcome is to be studied, whether comparisons between individual and group interventions are more revealing of benefi ts and limitations, how participants can be followed up, the multiple variables which may infl uence outcome (group leader and group participant characteristics, the severity of problems which bring people to a group, the motivation of participants, the social support available to them, etc.…”