某测验对11名被试施测,结果数据如下表,试计算各题的难度、区分度。
|
考生
|
A
|
B
|
C
|
D
|
E
|
F
|
G
|
H
|
I
|
J
|
K
|
|
题号
|
满分值
|
|
1
|
3
|
3
|
3
|
0
|
3
|
3
|
0
|
3
|
O
|
0
|
3
|
3
|
|
2
|
5
|
5
|
0
|
5
|
5
|
0
|
0
|
5
|
5
|
5
|
0
|
0
|
|
3
|
10
|
8
|
8
|
5
|
9
|
10
|
3
|
7
|
10
|
10
|
5
|
7
|
|
4
|
12
|
10
|
12
|
7
|
8
|
5
|
5
|
9
|
8
|
7
|
6
|
7
|
|
5
|
20
|
12
|
10
|
12
|
17
|
15
|
10
|
15
|
17
|
18
|
15
|
10
|
|
6
|
50
|
45
|
30
|
20
|
42
|
35
|
25
|
38
|
38
|
44
|
40
|
23
|
|
合计
|
100
|
86
|
63
|
49
|
84
|
68
|
43
|
77
|
78
|
84
|
69
|
50
|
(书中所给A考生总分有误,已改正。)