Background: Online CBT training is in its infancy. The initial studies have varied program characteristics and trainee groups, but results appear promising. At this stage, there is a need to evaluate programs with different characteristics to determine which are useful, and which are not. Method: This paper reports a preliminary evaluation of an online CBT training package, OCTC Online, which is distinguished from other online programs by its particularly strong focus on video presentations by trainers, accompanying PowerPoint slides, and video demonstrations of key clinical techniques. Participants (N = 94) completed online rating scales and questionnaires assessing (a) their satisfaction with the training; (b) their self-rated knowledge and confidence about the topics discussed (pre- and post-training); and (c) a multiple choice questionnaire (MCQ) objective test of knowledge (also pre- and post-training). Results: Results showed that on average students were highly satisfied with the online training modules, their self-rated confidence increased significantly, and so did their scores on the MCQ. Conclusions: The study has significant limitations but nevertheless contributes to the growing body of evidence that online training may have a useful part to play in enhancing therapists' knowledge of CBT theory and techniques, and their confidence in using the techniques.

'Background': Patients with anxiety disorder diagnoses commonly have more than one anxiety diagnosis. While cognitive-behavioural interventions have proven efficacy in treating single anxiety disorder diagnoses, there has been little investigation of their efficacy in treating co-occurring anxiety disorders. 'Aims': To evaluate the efficacy of a transdiagnostic cognitive-behavioural intervention for treating co-occurring anxiety disorders. 'Method': An A-B single case study design (N = 6) was used to evaluate the efficacy of a 12 to 13-session modular transdiagnostic cognitive-behavioural intervention for treating co-occurring anxiety disorders across patients with at least two of the following diagnoses: GAD, Social Phobia, Panic Disorder and/or OCD. 'Results': Five of the six participants completed treatment. At posttreatment assessment the five treatment completers achieved diagnostic and symptomatic change, with three participants being diagnosis free. All participants who completed treatment no longer met criteria for any DSM-IV-TR Axis-I diagnosis at the 3-month follow-up assessment, and demonstrated reliable and clinically-significant improvements in symptoms. Across the participants, statistically significant improvements from pre to postintervention were found on measures of anxiety, depression and general well-being, and all improvements were maintained at 3-month follow-up. 'Conclusions': Results suggest that transdiagnostic cognitive behavioural interventions can be of benefit to patients with co-occurring anxiety disorders.