**3.3. Test diagnostics: before therapy started (independent blind diagnostician)**

*SCID diagnostics* [39] demonstrated the criteria for SAD and a moderate depressive episode. *Standard diagnostics*: The *Symptom Checklist (SCL-K-9)* [40, 41] showed a superior psychological symptom pressure (T = 72). The *Brief Symptom Checklist (BSI)* [42] showed superior depression (T = 66), social uncertainty (T = 62), and phobic anxiety (T = 64). *Disorderspecific diagnostics*: The *Liebowitz Social Anxiety Scale (LSAS-SR)* [43] total score was at 105 (cutoff, 30), the *Social Interaction Anxiety Scale (SIAS)* at 46 (cutoff, 35), the *Social Phobia Scale (SPS)* at 29 (cutoff, 24) [44, 45], and the *Beck Depression Inventory (BDI)* [46] at 17 (mild depression).
