Fidelity of Implementation of Prospera Digital: Evaluation of a Multi-Site mHealth Intervention Aimed at Improving Maternal Health Outcomes in Mexico.

PD is a promising strategy to contribute to the promotion of early childhood development in Mexico. Implementation science evaluation can help improve the quality of large-scale mHealth interventions by anticipating barriers and providing insights on how to increase performance. This is especially relevant to inform impact evaluation in development contexts. The trial was registered at the American Economic Association's registry for randomized controlled trials with trial registry number 'AEARCTR-0001035'.