Study Design
This study was a 2-armed, parallel, single-blinded, cluster randomized controlled field trial. The available program on the main campus was chosen as a cluster unit with the assumption that students from a specific program only interact with those within the same program as they only engaged in web-based learning at home and other curricular activities were restricted during the COVID-19 pandemic. The intervention arm received SIM, whereas the control arm received a standard information program provided by the HEI and was put on the waitlist.