Venturo‐Conerly 2021.

Study name	Testing the effects of the Shamiri Intervention and its components on anxiety, depression, well‐being, and academic functioning in Kenyan adolescents
Methods	Study design: RCT Country: Kenya
Participants	Adolescent students (12‐21 years) Inclusion criteria:  a. student in a participating school between the ages of 12 and 21 Exclusion criteria: a. fail attention checks during baseline measures No participant who meets these criteria will be excluded for any other reasons other than the capacity of the groups; should more students than we can have in the group be interested in participation, we will randomly select students to join the groups. Stated purpose: 1) to compare the effects of each intervention and control condition on the primary outcomes (depressive symptoms, anxiety symptoms, academic performance, and wellness); 2) to compare the effects of each group on secondary outcomes; 3) to identify for whom these interventions are most effective and their mechanisms of change
Interventions	Interventions: Intervention 1: growth intervention (only) The growth mindset intervention consists of four small group (8–15 students) sessions delivered by Kenyan lay providers, lasting 1 h each. It is designed to strengthen individuals’ belief that the brain can adaptively respond to obstacles in various aspects of life (e.g. academic, interpersonal, and personality traits). The intervention includes didactics, activities, and group discussion. Intervention 2: gratitude intervention (only) The gratitude‐only intervention focuses on promoting intentionally noticing, communicating, and appreciating feelings of thankfulness. Throughout the four 1‐h small group (8–15 students) sessions, participants learn the concept of gratitude and apply the skills necessary for practising gratitude in their interpersonal relations, academics, and other aspects of life. Intervention 3: value affirmation intervention (only) The value affirmation intervention, lasting for four 1‐h sessions in a small group of 8–15 students, aims to teach the concept of noticing and living according to personal core values, thus contributing to a sense of purpose. Intervention 4: Shamiri intervention The Shamiri Intervention consists of four small group (8–15 students) sessions lasting for 4 weeks. The first two sessions focus on the concept of growth mindset and strategies for growth, the third session focuses on gratitude, and the fourth and final session focuses on value affirmation. Control: Active control: study skills (The study skills control intervention, lasting for 4 h spread across 4 weeks, is an active control intervention designed to control for all the nonspecific aspects of group psychotherapy including meeting in a group of students with a trained lay provider once a week, having discussions, completing activities in session, and completing homework assignments.)
Outcomes	Participants'outcomes of interest for this review Mental health symptoms/depression – Patient Health Questionnaire‐8 (PHQ‐8) Mental health symptoms/anxiety – Generalized Anxiety Disorder‐7 (GAD‐7) Quality of life – Short Warwick–Edinburgh Mental Wellbeing Scale (SWEMWBS) Social outcomes (perceived social support) – Multidimensional Scale of Perceived Social Support (MSPSS) Economic outcomes Nil Time points: baseline, post‐intervention (4‐week endpoint, and 1‐month, 3‐month, 6‐month, and 9‐month follow‐up)
Starting date	1 May 2021
Contact information	Katherine E. Venturo‐Conerly, katherinevc16@gmail.com
Notes	Source of funding: Templeton World Charity Foundation, grant # TWCF0509. Prospective trial registration number: PACTR202104716135752