“…In the latter, an ongoing research program has involved the comparison of individual and group therapy, process and outcome, and post treatment follow-up methods (Belloch et al, 2011; Cabedo et al, 2010). This research has also involved qualitative investigations exploring the variables influencing change (Castañeiras, Fraga Míguez, Fernández-Álvarez, & Belloch, 2009; Castañeiras, Fraga Míguez, García, Fernández-Álvarez, & Belloch, 2009) and single cases studies exploring processes and outcomes of obsessive–compulsive disorder treatments (Behobi Baudou, García, & Fernández-Álvarez, 2013). These studies have supported common factors as an important contributor to change, beyond the application of standard cognitive psychotherapy procedures.…”