EVALUATING THE 3 rd TEST Time Allotted: 45 minutes II.[r]
(1)EVALUATING THE 3rd TEST Time Allotted: 45 minutes II Pronunciation
III Errors
IV Guided Cloze-Test
Notes
* High: tests get scores from 8.0 to 10.0 * Low: tests get scores from 0.0 to 4.9
* Difficulty level = (high correct + low correct) / total number * Discrimination level = (high correct - low correct) / total number
* Evaluating
Difficulty level
item ≤ 35% Difficult 35% < item < 80% Acceptable
item ≥ 80% Easy
There are Xs Have borderline
Option Item 1 Item 2
High Low High Low
A
B
C
D
X 0
Difficulty level 6+2
14 = 57.14%
5+2
14 = 50%
Acceptable Acceptable
Discrimination
level 146−2 = 28.57% 145−2 = 21.43%
Acceptable Acceptable
Option Item 1 Item 2
High Low High Low
A
B 2
C 4
D
X 0
Difficulty level 5+1
14 = 42.9%
4+3
14 = 50%
Acceptable Acceptable
Discrimination
level 145−1 = 28.57% 144−3 = 7.14%
Acceptable Not Acceptable
Option Item 1 Item 2 Item 3 Item 4
High Low High Low High Low High Low
A 11 2
B
C 1
D
X 0
Difficulty level 9+1
14 = 71.42%
11+1 14 =
85.71%
4+2
14 =42.85%
2+1
14 = 21.43%
Acceptable Easy Acceptable Difficult
(have borderline)
Discrimination
level 149−1 = 57.14% 1114−1 = 71.43%
4−2
14 = 14.28%
2−1
14 = 7.14%
Discrimination level
item ≤ 10% Not acceptable 10% < item < 15% Marginal / Questionable
(2)