Lichand, Guilherme; Christen, Julien - 2021
-person classes return, interventions to motivate students to remain in school until then have been overlooked. In particular …-person classes. Methods: We conducted a cluster-randomized control trial with 18,256 high-school students in the State of Goiás … control group did not receive any messages. Within the treatment group, we additionally randomized students to variations in …