A Hybrid Effectiveness/Implementation Trial of the International Guide for Monitoring Child Development

The aim of this study is to conduct a hybrid effectiveness/implementation assessment of the International Guide for Monitoring Child Development (GMCD) in two LMIC settings, India and Guatemala, within established rural CHW programs. The primary objectives are (a) to evaluate the real-world effectiveness of the GMCD; (b) to use an implementation science framework to understand barriers and facilitators to effective population coverage, provider implementation, and maintenance; (c) to conduct an economic evaluation of the GMCD.

Inclusion Criteria: * age 0-24 months at the time of enrollment visit * receiving health services from frontline health workers of Maya Health Alliance (Guatemala), Mahatma Gandhi Institute (India) or their local partners Exclusion Criteria: * children who are critically ill and are judged by the frontline health worker to require hospitalization or center-based care * children whose caregivers do not provide informed consent for the study