Sample - 1,167 students in grades 7–9 (aged 11.8–14.7 years), Number of principals who expressed interest in the intervention - Eight, How schools were assigned to intervention and control groups - One school randomly assigned to intervention, demographically matched school as control, Percentage of students from two-parent households - 64%, Purpose of wait-list control schools - Served as a baseline to compare with the intervention group, Mental health measure showing no significant difference between groups - Life satisfaction, How high-risk students responded compared to low-risk students - Students from lower-income or single-parent households showed less improvement but still improved,

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