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Table 1 Schedule of enrolment, interventions and assessments

From: Internet-based psychodynamic versus cognitive behaviour therapy for adolescents with depression: study protocol for a non-inferiority randomized controlled trial (the ERiCA study)

Activity/assessment Online screening/baseline Telephone interview Post-randomization Follow-up
− t1 t0 t1–10 (weekly) t11 (post) f1 f2 f3
Informed consent X       
Demographic data X       
ICBT/IPDT    X     
M.I.N.I 7.0   X      
C-SSRS   X      
DSRFI   X      
Treatment Expectancya X   X     
QIDS-A17-SR X   X X X X X
SAI-C/SAI-T    X     
GAD-7 X    X X X X
SCS-SF X    X    
PID-5-BF X       
TiC-P X       X
ERSQ-27 X    X    
ERSQ-9    X     
ECR-RS X       
OPD-SQS X       
Termination form     X    
  1. M.I.N.I Mini International Neuropsychiatric Interview, C-SSRS Columbia Suicide Severity Rating Scale, DSRFI Depression-specific reflective functioning interview, QIDS-A17-SR Quick Inventory of Depressive Symptomatology in Adolescents, SAI-C Session Alliance Inventory – Client version, SAI-T Session Alliance Inventory – Therapist version, GAD-7 Generalized Anxiety Disorder -7, SCS-SF Self-Compassion Scale short-form, PID-5-BF The Personality Inventory for DSM Short Form, TiC-P Trimbos and Institute of Medical Technology Assessment Cost Questionnaire for Psychiatry, ERSQ Emotion Regulation Skills Questionnaire (27/9 items), ECR-RS Experiences in Close Relationships - Relationship Structure, OPD-SQS OPD-Structure Questionnaire short version. F1: 1 month, F2: 6 months; F3: 12 months
  2. a“How much do you expect your depression to improve as a result of treatment?” on a 7-point Likert scale ranging from “− 3” (I expect to feel much worse) to “3” (I expect to feel much better)