Measures
MAY
Participants are assessed at baseline (January 2023), post-intervention (May 2023), and 1 month after the intervention (June 2023) to test the stability over time of the strategies offered to teachers. Post-intervention measure of accelerometers-based variables and time-on-task are assessed during the last weeks of intervention, due to the characteristics of the indicators. To minimize variability in assessments, all measurements are conducted in schools by trained researchers who have received prior training.