Data analyses Mixed between-within subject analysis of variance will be conducted. Between-subject variable refers to both conditions, the VR-CET versus A-CBT. The within-subject variable refers to the assessment time: prior to beginning the second-level treatment conditions (both VR-CET and A-CBT conditions), at the end of the treatment, and at the six-month follow-up. Thus, comparisons between results obtained by both groups before treatment, after treatment and at follow-up for each of the assessed measures will be conducted. Using a similar analysis, anxiety measures registered during each exposure session will also be compared.