Fig. 2

Standard Protocol Items: Recommendations for Interventional Trials (SPIRIT) checklist for the trial. ANS Autonomic nervous system, ARI Affective Reactivity Index, BMSLSS Brief Multidimensional Students’ Life Satisfaction Scale, BSQ Burnout Screening Scale, CBCL Child Behaviour Checklist, CD Conduct disorder, CECA-Q Childhood Experience of Care and Abuse Questionnaire, CSQ Client Satisfaction Questionnaire, DERS Difficulties in Emotion Regulation Scale, DIPD-IV Diagnostic Interview for DSM-IV Personality Disorders, EMA Ecological momentary assessment, fMRI Functional magnetic resonance imaging, GAS Goal Attainment Scaling, HR Heart rate, HRV Heart rate variability, ICU Inventory of Callous-Unemotional Traits, IQ Intelligence quotient, IQI Institutional Quality Index, K-SADS-PL Kiddie Schedule for Affective Disorders and Schizophrenia for School-Age Children–Present and Lifetime, MOAS Modified Overt Aggression Scale, ODD Oppositional defiant disorder, QAF Quality Assurance Form, RSA Respiratory sinus arrhythmia, SCL Skin conductance level, SCR Skin conductance response, T1, T2, T3, T4 Time points 1, 2, 3 and 4, TAU Treatment as usual, TAU-Q Treatment as Usual Questionnaire, TSQ Training Satisfaction Questionnaire, WAIS Wechsler Adult Intelligence Scale, WISC-IV Wechsler Intelligence Scale for Children, Fourth Edition, YPI Youth Psychopathic Traits Inventory, YSR Youth Self-Report