-
《英语测试》作业
1．dentify the scales represented by the following kinds of data.
2．iven the following raw score distribution on a spelling test of 25 items, calculate (a) ordinal
ratings, (b) percentage scores, (c) percentile ranks: 6, 8, 9, 11, 12, 12, 14, 15, 19, 19, 21, 25.
3．If you administered a multiple-choice test of phrasal verb usage to a class of ten students and
got the following distribution of scores: 11, 13, 16, 16, 18, 20, 20, 25, 27, 29, what would be the
corresponding z-scores, T-scores, and normal distribution area proportions if the standard deviation
is 5.95?
4．In a normal distribution, what proportion of the scores lie between plus and minus one standard
deviation? Between plus and minus two standard deviations?
5．Compute item difficulty and the proportion incorrect for each of the items in the following scoring
matrix. Identify items for rejection.
Items
1
2
3
5
6
7
8
9
10
1
1
1
1
1
0
1
1
0
1
0
2
0
1
1
0
1
1
1
1
1
1
3
1
0
0
1
0
1
0
0
0
1
4
1
0
0
0
0
1
0
1
0
0
5
1
0
1
1
0
0
1
0
1
1
Examinees 4
6．Look at the following paired scores on listening comprehension (X) and general proficiency (Y) for
ten students.
X
25
13
15
19
17
16
21
24
Y
18
21
22
27
31
22
29
33
第 1 页 共 1 页
在您完成作业过程中，如有疑难，请登录学院网站“辅导答疑”栏目，与老师进行交流讨论！
22
21
26
29
Compute the correlation coefficient for these scores. Please do a one-tailed Pearson test to determine
whether it is significant on the level of significance of <.05?
7．Nine students have taken two different aptitude tests and got the following test result. Compute
the Pearson product moment correlation coefficient. And determine whether it is significant on the
level of significance of <.05?
Student No. 01 02 03 04 05 06 07 08 09
Test A 56 60 61 62 65 67 71 71 74
Test B 34 26 62 30 30 28 34 36 40
8．Look at the following scoring matrix for twenty students:
Item
Student
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
1
1
0
0
1
1
1
0
1
1
0
0
1
1
1
0
0
1
0
1
0
1
1
1
1
1
0
1
1
1
0
1
1
1
1
1
1
0
1
1
1
0
0
0
1
0
1
0
0
0
1
0
0
0
1
0
1
0
0
1
1
0
1
0
1
1
0
1
1
1
0
1
1
0
1
0
1
1
1
1
1
1
0
1
0
1
1
1
1
0
1
1
0
1
1
1
0
1
1
1
4
3
2
2
4
4
3
3
4
3
2
3
3
3
5
2
3
3
3
5
1 2 3 4 5 Score
Compute the point biserial correlation coefficient for each of the five items with total score.
9．What do we mean by correlation in statistics?
10．Please state the difference between the classroom tests and external tests.
11．Make a simple clarification on the Classical True Score Model and enumerate its demerits.
第 1 页 共 1 页
在您完成作业过程中，如有疑难，请登录学院网站“辅导答疑”栏目，与老师进行交流讨论！
12．Please write five multiple-choice items on some grammatical elements (tense, agreement, etc.).
第 1 页 共 1 页
在您完成作业过程中，如有疑难，请登录学院网站“辅导答疑”栏目，与老师进行交流讨论！
-
-
-
-
-
-
-
-
本文更新与2021-01-14 05:56，由作者提供，不代表本网站立场，转载请注明出处：https://www.bjmy2z.cn/gaokao/515459.html