Items addressing key concepts
|
Items addressing misconceptions
|
---|
Price et al. (2014)
|
Present study
|
Price et al. (2014)
|
Present study
|
---|
16
|
16
|
8
|
8
|
13
|
13
|
6
|
6
|
10
|
3
|
12
|
14
|
4
|
10
|
17
|
12
|
15
|
15
|
5
|
17
|
3
|
4
|
14
|
5
|
1
|
1
|
2
|
2
|
| |
11
|
19
|
| |
18
|
22
|
| |
20
|
20
|
| |
9
|
9
|
| |
7
|
7
|
| |
19
|
11
|
| |
22
|
21
|
| |
21
|
18
|
- Items listed from most challenging items (top) to least challenging items (bottom). Difficulty rank based on CTT difficulty (P) values for initial study and Rasch item measures for present study