The students were categorized into three usage levels: high, medium and low.
By considering the average frequency of editing usage (M=16.25) and the balance of the number of subjects assigned to each group for reliable statistical testing, students with a usage score greater than 18.86 were assigned to the high usage group (number of Subjects = 7), while those with a usage score between 12.93-18.86 and less than 12.93 were placed in the medium usage group (number of subjects = 7) and the low usage group (number of subjects = 6) respectively.