Table 5.
* P < 0.05, ** P < 0.01, *** P < 0.001
1) Each item was measured using 5-point scales from 'strongly disagree' (1) to 'strongly agree' (5).
2) Each item was measured using 5-point scales ranging from 'very difficult' (1) to 'very easy' (5).
3) Mean ± SD
4) t value by t-test
5) Total score of 15 items (possible score: 15-75). To calculate the total score, the items from 1 to 9 were scored reversely.