Table 3. Initial Core Set of Variables to be Collected for Adults and for Children and Adolescents.

Patient characteristics
All
Age (years)
Gender
Previous psychological or psychosocial treatments
Index and additional diagnoses (ICD-10, before and after therapy) based on structured or standardized clinical interviews
Level of education
Clinicians Global Impression Scalea, CGI
Adults
Marital status
Brief Symptom Inventoryb, BSI or Symptom Checklist 90-Revisedc, SCL 90-R
Beck Depression Inventoryd, BDI I or BDI II
Children and adolescents
Child Behavior Checkliste, CBCL
Youth Self-Report of the Child Behavior Checkliste, YSR 11-18R
Psychosocial stressors (max. 5)
Living situation
Parent variables: BSIb or SCL-90-Rc, level of education, partnership status
Therapist characteristics
Gender
Age
Training status (fully licensed vs. still in training)
Treatment variables
Number of therapy sessions
Type of treatment performed
Current treatment status (ongoing, discontinued, regular termination)

^aGuy, 1976; Kadouri et al., 2007. ^bDerogatis & Spencer, 1993; Franke, 1997. ^cDerogatis, 1992; Franke & Derogatis, 1995. ^dHautzinger et al., 2000, 2009. ^eDöpfner et al., 2014.