Participants for the treatment study filled in baseline measurements at between 3 and 10 time points. Baseline measurements were separated by at least five days. In connection with the last baseline measurement, participants filled out pretreatment measurements and started treatment, consisting of 10 weekly modules. Process measurements were filled out once every module, as well as longer measurements at mid- and post treatment. A follow-up was done via the platform after 3 months. Treatment consisted of 10 weeks of internet delivered, therapist guided CBT based self-help treatment based on the Unified Protocol.