“…The use of therapy manuals in RCT studies allows for enhanced control over the experimental treatment under study but restricts the types of psychotherapeutic interventions that can be studied. The requirements of RCT designs in effect help to ensure the reliability of reported effects but limit the manner in which problems, treatments, and outcome criteria are defined, understood, and assessed [3,[9][10][11]. The effects of therapy moderators are assumed to be randomized in RCT design studies based on the assumption that randomization of group assignment takes into account potential effects of known moderators of therapeutic effects such as level of distress, social impairment, comorbidity, self-reflectiveness, readiness for change, openness to experience, level of engagement, ability to verbalize feelings, social support, and coping [1-3, 7, 10, 11].…”