*3.1.3 Questionnaire on ICT use*

We used a 35-item scale with four subscales. The first two aimed to measure software (ICT-S, 16 items) and hardware use (ICT-H, 4 items) on a 5-point Likert scale, reflecting frequency of use (never, less than once a week, multiple times a week, almost every day, multiple times a day). The third subscale (ICT-C, 5 items) inquired about the number of ICT-rich study courses students were enrolled in. Confidence of Internet use (ICT-I, 10 items) was surveyed in the fourth segment on a 5-point Likert scale, based on the degree of agreement with given statements.
