The impact of session-introducing mindfulness and relaxation interventions in individual psychotherapy for children and adolescents: a randomized controlled trial (MARS-CA)

Table 1 Participant timeline of the Mindfulness and Relaxation Study – Children and Adolescents (MARS-CA)

Measures	Before outpatient admission	Diagnostic phase	Pre	S_1–S₂₄	Mid-S₃	Mid-S₁₀	Mid-S₁₇	Post-S₂₄	6-month follow-up
Recruitment—therapist
Informed consent	+
Clinical assessment—therapist
HICBI					+	+	+	+
CEQ therapist					+	+	+	+
AD-S therapist					+	+	+	+
Recruitment—patient
Informed consent patient		+
Informed consent caregiver (patient age < 18 years)		+
Eligibility screen		+
Allocation		+
Clinical assessment—patient
Kinder-DIPS-OA (including severity measurement)			+					+
YSR 11-18R			+		+	+	+	+	+
DISYPS-III
SBB-DES			+		+	+	+	+	+
SBB-ANG			+		+	+	+	+	+
SBB-ADHS			+		+	+	+	+	+
CEQ patient					+	+	+	+
AD-S patient					+	+	+	+
Mindfulness and mindfulness-related assessment—therapists
KIMS-D			+		+	+	+	+	+
SCS-D			+		+	+	+	+	+
ESSW			+		+	+	+	+	+
TPI therapist					+	+	+	+
Mindfulness and mindfulness-related assessment—patients
CAMM			+		+	+	+	+	+
SCS (child version)			+		+	+	+	+	+
TPI patient					+	+	+	+
PQ-M					+	+	+	+
Post-session questionnaire—therapists
FTB-KJ therapist				+
TPI (short version) therapist				+
Post-session questionnaire—patients
FTB-KJ patient				+
TPI (short version) patient				+

Abbreviations: AD-S Adherence Scale, CAMM Child and Adolescent Mindfulness Measure, CEQ Credibility-/Expectancy Questionnaire, DISYPS-III Diagnostic System for Mental Disorders in Childhood and Adolescence, 3rd version, FTB-KJ German version of the Therapeutic Alliance Scale for Children, ESSW Empathy Scale for Social Workers, HICBI Heidelberg Inventory of Cognitive-Behavioral Interventions, KIMS-D German version of the Kentucky Inventory of Mindfulness Skills, PQ-M Practice Quality – Mindfulness, S therapy session, SBB-ADHS problem scales of the attention-deficit/hyperactivity disorder self-rating scale, SBB-ANG problem scales of the anxiety disorder self-rating scale, SBB-DES problem scales of the depressive disorder self-rating scale, SCS-D German version of the Self-Compassion Scale, TPI Therapeutic Presence Inventory, YSR 11-18R Youth Self Report Revision

ISSN: 1745-6215