To investigate possible differences between people consenting and refusing to participate in the patient-reported assessments, we asked refusers if they were willing to sign informed consent for collecting baseline demographic information and baseline **data** on functional outcomes (Social Functioning Scale [SFS] 22 and Life Skills Profile [LSP], 23 see below). Assessors were third-or fourth-year psychology students or recently graduated psychologists. They were blind to participant allocation and the content of the intervention. In case the blind was broken, another rater finished the assessment.