Fig. 7

The number of task counts per day, for each of the 5 weeks, averaged over the students in each grade group. The number of students in each grade group was 84 (A), 66 (B), and 22 (C, D, F) in class 2016, and 27 (A), 37 (B), and 76 (C,D,F) in class 2017. Figure based on data and analyses in Park et al. (2018)