Prevention of depression and anxiety in adolescents: A randomized controlled trial testing the efficacy and mechanisms of Internet-based self-help problem-solving therapy

Table 1 Instruments at different assessment points.

	Baseline	Treatment phase	Treatment end	4-month follow-up	8-month follow-up	12-month follow-up
NIMH-DISC	X
BDI-II	X	X	X	X	X	X
CES-D	X	X	X	X	X	X
HADS	X	X	X	X	X	X
PedsQL	X		X			X
SAS-A	X		X			X
Demographics	X
Motivation	X
CEQ	X
WAI - SF			X
CSQ-8			X
YSR	X		X
SSS-A	X		X
Substance use	X		X
LEQ-S	X			X		X
GS	X		X
RSES	X	X	X			X
PSWQ-C	X	X	X
Mastery Scale	X	X	X
CISS	X	X	X
TiC-P	X			X

NIMH-DISC: the National Institute of Mental Health Diagnostic Interview Schedule for Children, BDI-II: Beck Depression Inventory-II, CES-D: Centre for Epidemiological Studies Depression scale, HADS: Hospital Anxiety and Depression Scale, PedsQL: the Pediatric Quality of Life Inventory, SAS-A: Social Anxiety Scale for Adolescents, CEQ: Credibility/Expectancy Questionnaire, WAI - SF: Working Alliance Inventory, Short Form, CSQ-8: Client Satisfaction Questionnaire 8, YSR: Youth Self Report, SSS-A: Social Support Scale for Adolescents, LEQ-S: Life Events Questionnaire, Short form, GS: Godin-Shephard questionnaire, RSES: Rosenberg Self-Esteem Scale, PSWQ-C: Penn State Worry Questionnaire for Children, CISS:Coping Inventory for Stressful Situations, TiC-P: Trimbos/iMTA questionnaire for Costs associated with Psychiatric Illness.

ISSN: 1745-6215