2008 AMC8 Report for all schools in Iowa
Number of schools returning results 34
Average of school highest score 18.41
Average school team score 49.85
# of State Student Participants 2139
Overall State Average Score 10.74
Average Score by Grade level
Grade # of Students Average
5th 2 10.50
6th 84 10.15
7th 829 9.82
8th 1140 11.38
Number of Female Students 978
Average Score of Female Students 10.42
Average Female Scores by Grade
Grade # of Students Average
6th 35 9.17
7th 407 9.66
8th 505 11.03
Number of Male Participants 1125
Average Score of Male Participants 10.98
Average score for Males by Grade
Grade # of Students Average
5th 2 10.50
6th 49 10.86
7th 418 9.96
8th 607 11.62
2008 American Mathematics Contest 8
Number of Students Achieving Indicated Score
SCORE MALE FEMALE TOTAL*
25 1 0 1
24 1 1 2
23 4 0 4
22 7 2 10
21 14 3 19
20 10 5 15
19 10 12 24
18 26 15 42
17 34 16 52
16 35 25 61
15 72 47 121
14 76 62 139
13 72 61 133
12 92 73 167
11 123 135 262
10 117 116 237
9 117 104 228
8 94 97 194
7 83 85 168
6 55 57 114
5 44 29 75
4 21 19 40
3 9 9 18
2 3 3 6
1 2 0 2
0 (@) 0 0 0
0 ($) 3 2 5
(@) These students attempted some of the problems
($) These students attempted none of the problems
(*) Total includes students who failed to mark their gender
2008 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 2
23 0 0 1 3
22 0 0 1 9
21 0 1 1 17
20 0 1 2 10
19 0 0 6 18
18 0 1 12 27
17 0 1 15 31
16 0 4 13 38
15 0 1 36 76
14 0 4 42 93
13 0 4 46 78
12 1 7 55 91
11 0 15 90 149
10 0 9 92 127
9 1 9 101 107
8 0 6 100 79
7 0 10 76 79
6 0 3 59 50
5 0 6 50 18
4 0 1 19 20
3 0 0 6 11
2 0 0 4 2
1 0 0 0 2
0(@) 0 1 2 2
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
2008 American Mathematics Contest 8
Number of Schools with 3+ students
Achieving team Scores
SCORE school count
71 1
68 1
65 1
62 2
61 2
60 1
59 3
56 1
54 2
52 1
51 1
49 3
47 1
45 1
44 1
43 2
42 4
41 1
40 1
37 1
32 1
Table of Item Difficulty for the 2008
American Mathematics Contest 8
Tabulation of responses by 2139 Students
Percent of Responses
ITEM A B C D E OMITS ?
____ _____ _____ _____ _____ _____ _____ _____
1 2.20 90.88* 4.44 2.20 0.05 0.23 0.00
2 51.52* 16.97 8.09 16.88 5.61 0.94 0.00
3 74.47* 7.29 2.34 2.57 12.90 0.33 0.09
4 5.38 14.77 62.69* 11.22 4.72 1.08 0.14
5 5.89 10.10 7.76 15.47 59.79* 0.89 0.09
6 32.77 11.73 1.82 52.03* 1.22 0.37 0.05
7 5.42 5.33 7.34 17.34 63.77* 0.75 0.05
8 5.00 2.43 7.76 82.52* 1.78 0.47 0.05
9 3.60 2.29 3.04 24.40* 66.15 0.33 0.19
10 48.20 6.12 9.68 31.84* 3.32 0.84 0.00
11 75.13* 13.28 6.83 1.64 2.10 0.79 0.23
12 11.22 24.12 29.87* 18.98* 14.87* 0.94 0.00
13 4.44 8.60 44.13* 12.16 29.13 1.54 0.00
14 23.94 22.25 24.82* 7.20 21.22 0.56 0.00
15 17.67 35.20* 23.28 14.26 7.11 2.38 0.09
16 17.91 18.70 13.98 39.64* 8.27 1.36 0.14
17 23.19 24.64 18.51 22.86* 7.95 2.81 0.05
18 23.80 18.61 19.87 13.37 21.83* 2.43 0.09
19 40.21 20.99* 9.40 18.47 8.56 2.15 0.23
20 17.67 23.28* 34.64 10.52 10.57 3.27 0.05
21 45.16 19.07 16.08* 12.58 3.60 3.37 0.14
22 23.28* 21.51 20.24 18.89 11.22 4.53 0.33
23 10.61 20.15 24.03* 28.10 11.17 5.94 0.00
24 26.74 20.76 23.28* 12.30 10.94 5.80 0.19
25 21.60* 17.67 17.63 16.22 20.66 6.08 0.14
(*) Correct Response
(?) Response the computer was unable to read due to incomplete
erasures or two answers marked for the same problem