A total of 3291 students, 49% of the total 6711 students enrolled in grades 8 and 9 of the 41 government and aided middle and high schools in an urban education block, received this intervention. The other 3420 students formed the control group. Randomization was at the school level. In terms of gender, 875 boys and 2416 girls were assigned to the treatment arm while 2100 boys and 1320 girls were assigned to the control group. The gender imbalance, due to many single gendered schools and not statistically significant at the 5% level, is factored in the analysis.

TABLE 1: SAMPLE SIZE BY SCHOOL MANAGEMENT CATEGORY

Management Type	Treatment		Control		Row Total
	Schools	Students	Schools	Students	Schools	Students
Government	5	320	3	316	8	636
Fully Aided	10	2336	17	2747	27	5083
Partially Aided	4	635	2	357	6	992
Grand Total	19	3291	22	3420	41*	6711

Note* One management runs an aided school and an unaided school with the same school code. Since only one of these two schools received the random treatment assignment, the school code is added both in the treatment and the control groups. Administrative records will show a total of 40 schools only. The project was implemented between September 2022 and April 2024 in three major phases: (i) preparation (pre-baseline) and baseline (ii) random assignment and intervention, and (iii) end line assessment. Due to the unprecedented December 2023 floods that affected school infrastructure and the academic calendar in the district variously, against the planned 30 sessions, the maximum any school received were only 19 sessions.