| |
Item difficulty—before [%]
|
Item difficulty—after [%]
|
Difference (improvement) [%]
|
|---|
|
All students/participants (n = 47)
|
73.6 ± 15.5
|
87.7 ± 8.5
|
14.1 ± 7.0
|
|
El. engineers (n = 13)
|
80.8 ± 13.2
|
93.1 ± 8.5
|
12.3 ± 4.7
|
|
Natural scientists (n = 34)
|
70.9 ± 17.5
|
85.6 ± 9.3
|
14.7 ± 8.2
|
- The average increase in percentage of correct answers/item (averaged through all 10 questions/items), the after-before difference for all participants and separately for all participants, and separately for both experimental groups (i.e. electrical engineers and natural scientists)
