Case selectionSample size calculation. It was difficult to conduct a power analysis as this is the first study of its type. However, based on previous similar studies [11] [12] a power calculation indicated that approximately 60 cases would be sufficient to detect a small-moderate effect size (d = .25) at 80% power with p < .05 for CBT focussed on depression vs. CBT focused on anxi- ety and depression. Previous research has found a significant difference between groups with24 patients [12] and a related study found significant differences using 65 patients [11]. It was conservatively estimated that approximately 50% of cases reviewed would meet inclusion crite- ria, therefore we aimed to review 135 cases using the session content proforma.