Fig. 2

Cascaded model of training and supervision of program trainers and family volunteers (adapted from Murray et al. 2011). Note: master trainer (UH), program trainers (had at least 16 years of education and 1 year of experience in working with children and families with developmental disorders), family volunteers (FVs) (parents or caregivers of children with developmental disorders, had at least eight grades of formal education, are voluntarily willing to be trained and supervised by the trainers for at least 6 months duration of the program and cascade the training to 4–5 families in their villages)