https://www.sciencedirect.com/science/article/pii/S001094522300237X?via%3Dihub https://www.sciencedirect.com/science/article/pii/S001094522... >Self-report est

https://www.sciencedirect.com/science/article/pii/S001094522300237X?via%3Dihub https://www.sciencedirect.com/science/article/pii/S001094522... >Self-report estimates provided by participants were our predictor variables. Participants used a 7-point scale to estimate the amount of time they spent on each of a series of six digital activities on both “typical” weekday and weekend days; Sounds like it was.