2004 AMC8 Report for all schools in Iowa
Number of schools returning results 47
Average of school highest score 16.85
Average school team score 46.09
# of State Student Participants 2540
Overall State Average Score 9.84
Average Score by Grade level
Grade # of Students Average
5th 3 7.67
6th 27 9.30
7th 1073 9.11
8th 1417 10.43
Number of Female Students 1216
Average Score of Female Students 9.44
Average Female Scores by Grade
Grade # of Students Average
5th 1 8.00
6th 13 8.54
7th 512 8.69
8th 683 10.04
Number of Male Participants 1282
Average Score of Male Participants 10.21
Average score for Males by Grade
Grade # of Students Average
5th 2 7.50
6th 14 10.00
7th 552 9.48
8th 706 10.81
2004 American Mathematics Contest 8
Number of Students Achieving Indicated Score
SCORE MALE FEMALE TOTAL*
25 0 1 1
24 0 1 1
23 0 1 1
22 5 1 6
21 3 1 4
20 6 7 13
19 9 8 18
18 20 6 26
17 31 16 47
16 48 21 71
15 56 26 84
14 66 49 116
13 79 65 147
12 112 94 212
11 126 121 251
10 127 127 258
9 134 152 292
8 137 135 279
7 124 156 283
6 91 101 192
5 54 76 131
4 37 39 77
3 12 8 20
2 1 2 3
1 1 0 1
0 (@) 0 0 0
0 ($) 3 2 6
(@) These students attempted some of the problems
($) These students attempted none of the problems
(*) Total includes students who failed to mark their gender
2004 American Mathematics Contest 8
Number of Students by Grade
Achieving indicated Score
SCORE 5th Grade 6th Grade 7th Grade 8th Grade
25 0 0 0 1
24 0 0 0 1
23 0 0 0 1
22 0 0 2 4
21 0 1 0 3
20 0 0 2 11
19 0 0 3 15
18 0 0 7 19
17 0 1 13 33
16 0 0 20 51
15 0 1 16 67
14 0 1 36 79
13 0 2 45 96
12 1 1 75 134
11 0 1 98 151
10 0 0 128 128
9 0 4 132 154
8 1 1 137 138
7 0 11 140 131
6 0 1 94 94
5 0 0 72 58
4 0 2 38 35
3 1 0 12 7
2 0 0 3 0
1 0 0 0 1
0(@) 0 0 0 5
0($) 0 0 0 0
(@) These students attempted some of the problems
($) These students attempted none of the problems
Note: Some students failed to indicate a grade
Table of Item Difficulty for the 2004
American Mathematics Contest 8
Tabulation of responses by 2540 Students
Percent of Responses
ITEM A B C D E OMITS ?
____ _____ _____ _____ _____ _____ _____ _____
1 1.54 90.98* 3.54 1.18 2.20 0.55 0.00
2 5.79 43.82* 39.53 9.13 0.94 0.75 0.04
3 71.02* 16.54 7.76 2.72 1.30 0.67 0.00
4 2.60 52.76* 19.96 11.61 12.48 0.59 0.00
5 9.33 2.60 18.31 62.17* 7.09 0.51 0.00
6 19.09 17.48 50.79* 7.24 4.41 0.98 0.00
7 2.17 42.28* 5.28 45.55 4.17 0.51 0.04
8 24.96 49.53* 11.73 4.92 7.48 1.26 0.12
9 11.30 14.61 13.62 35.12* 23.98 1.38 0.00
10 3.46 4.84 4.53 25.00 61.42* 0.67 0.08
11 6.65 21.69 58.07* 7.60 4.88 1.06 0.04
12 23.74 22.13* 14.88 26.50 11.22 1.50 0.04
13 35.31 7.95 13.94 17.87 23.43* 1.46 0.04
14 12.87 29.29 36.26* 16.10 3.27 2.17 0.04
15 14.29 14.69 37.99* 15.20 16.73 1.02 0.08
16 4.57 8.50 18.03* 6.10 61.02 1.73 0.04
17 4.41 21.22 26.34 23.90* 21.97 2.05 0.12
18 43.27* 6.97 18.11 24.02 4.88 2.72 0.04
19 21.50 37.91* 17.32 9.96 8.43 4.69 0.20
20 11.89 22.48 27.05 25.08* 9.29 4.17 0.04
21 10.71 20.43 20.16 24.25* 20.31 4.09 0.04
22 9.92 14.57* 12.32 9.92 48.07 5.12 0.08
23 38.98 10.55 8.39 21.38* 14.88 5.55 0.28
24 15.47 20.83 25.75* 16.30 13.66 7.99 0.00
25 18.07 25.59 14.96 12.20* 20.87 8.23 0.08
(*) Correct Response
(?) Response the computer was unable to read due to incomplete
erasures or two answers marked for the same problem