2007 AMC8 Report for all schools in Iowa
Number of schools returning results 41
Average of school highest score 15.93
Average school team score 44.02
# of State Student Participants 2422
Overall State Average Score 9.33
Average Score by Grade level
Grade # of Students Average
5th 20 6.25
6th 69 8.23
7th 857 8.60
8th 1443 9.86
Number of Female Students 1103
Average Score of Female Students 8.90
Average Female Scores by Grade
Grade # of Students Average
5th 6 5.00
6th 30 6.97
7th 389 8.26
8th 674 9.40
Number of Male Participants 1262
Average Score of Male Participants 9.66
Average score for Males by Grade
Grade # of Students Average
5th 13 6.92
6th 38 9.26
7th 460 8.89
8th 737 10.21
2007 American Mathematics Contest 8
Number of Students Achieving Indicated Score
SCORE MALE FEMALE TOTAL*
25 0 0 0
24 1 0 1
23 1 0 1
22 4 1 5
21 3 0 3
20 6 0 6
19 6 3 9
18 10 4 14
17 21 8 30
16 28 11 39
15 32 19 54
14 48 47 97
13 89 46 141
12 113 76 197
11 126 116 250
10 131 127 264
9 162 131 297
8 124 128 260
7 120 131 255
6 88 103 193
5 65 59 128
4 42 58 101
3 30 27 57
2 7 2 9
1 2 4 6
0 (@) 0 1 1
0 ($) 3 1 4
(@) These students attempted some of the problems
($) These students attempted none of the problems
(*) Total includes students who failed to mark their gender
2007 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 0
24 0 0 1 0
23 0 0 0 1
22 0 0 3 2
21 0 1 0 2
20 0 0 2 4
19 0 0 3 5
18 0 0 0 14
17 0 0 8 22
16 0 1 13 25
15 0 1 10 43
14 0 0 29 66
13 0 2 39 100
12 1 5 47 141
11 0 5 59 183
10 2 6 92 159
9 0 7 104 183
8 2 10 104 138
7 3 12 102 135
6 2 6 97 85
5 6 5 58 58
4 2 6 46 45
3 2 1 33 20
2 0 0 3 6
1 0 0 4 2
0(@) 0 1 0 4
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 2007
American Mathematics Contest 8
Tabulation of responses by 2422 Students
Percent of Responses
ITEM A B C D E OMITS ?
____ _____ _____ _____ _____ _____ _____ _____
1 4.46 3.88 4.13 84.15* 3.18 0.21 0.00
2 23.45 4.54 4.25 6.36 61.02* 0.37 0.00
3 9.17 16.43 53.59* 14.04 5.86 0.91 0.00
4 7.10 15.32 4.91 48.35* 23.78 0.33 0.21
5 5.82 83.98* 4.62 1.94 3.43 0.21 0.00
6 5.57 23.41 39.02 4.25 27.13* 0.54 0.08
7 11.60 16.31 6.36 56.73* 8.18 0.83 0.00
8 4.50 51.28* 8.67 23.12 11.85 0.54 0.04
9 3.80 78.28* 2.48 3.47 11.52 0.37 0.08
10 32.12 10.40 34.85 14.99* 5.41 2.11 0.12
11 5.57 7.80 21.76 34.97* 28.53 1.16 0.21
12 42.61* 15.40 14.86 14.08 12.14 0.87 0.04
13 46.37 32.08 13.13* 4.75 2.44 1.16 0.08
14 39.76 19.82 11.73* 8.42 19.03 1.11 0.12
15 40.34* 6.98 6.90 21.88 23.08 0.74 0.08
16 22.05* 8.92 9.12 49.46 9.12 1.28 0.04
17 11.07 32.62 28.36* 17.92 8.51 1.40 0.12
18 8.13 16.14 17.22 47.52* 9.29 1.65 0.04
19 30.92 29.52 20.07* 10.57 6.56 2.23 0.12
20 27.87* 17.96 19.78 13.54 16.60 4.17 0.08
21 8.01 21.92 40.63 10.12* 16.35 2.93 0.04
22 9.50 30.84 21.39* 23.00 10.12 5.08 0.08
23 8.05 25.23* 37.28 15.52 9.54 4.25 0.12
24 29.40 21.92 14.95* 12.84 15.65 5.00 0.25
25 13.34 12.76* 42.16 11.68 13.38 6.61 0.08
(*) Correct Response
(?) Response the computer was unable to read due to incomplete
erasures or two answers marked for the same problem