Aims and objectives The primary objective of this study is to compare, among caregivers of children aged 0-7 years in Cianjur district, Indonesia, the effectiveness of the Families First Program in reducing rates of violent discipline episodes in the home in comparison to rates observed under the standard community health and social service provision. The study will also identify unintended positive and negative effects of this program; determine facilitators and barriers to its implementation in this context; and assess facilitators, mentors, and families' satisfaction with the program.