2008 AMC8 Report for all schools in Illinois
Number of schools returning results 82
Average of school highest score 19.91
Average school team score 53.76
# of State Student Participants 5378
Overall State Average Score 10.56
Average Score by Grade level
Grade # of Students Average
5th 62 9.76
6th 1172 8.66
7th 1589 10.68
8th 2498 11.39
Number of Female Students 2515
Average Score of Female Students 9.91
Average Female Scores by Grade
Grade # of Students Average
5th 22 9.86
6th 570 8.42
7th 753 9.96
8th 1145 10.64
Number of Male Participants 2790
Average Score of Male Participants 11.12
Average score for Males by Grade
Grade # of Students Average
5th 39 9.74
6th 594 8.87
7th 816 11.32
8th 1318 12.04
2008 American Mathematics Contest 8
Number of Students Achieving Indicated Score
SCORE MALE FEMALE TOTAL*
25 6 0 6
24 7 2 9
23 15 3 18
22 19 2 21
21 35 8 44
20 51 8 60
19 63 28 94
18 65 24 91
17 104 47 152
16 114 70 189
15 140 89 234
14 181 122 305
13 197 171 375
12 200 200 405
11 231 243 483
10 257 245 510
9 238 270 513
8 217 313 535
7 233 238 475
6 166 197 364
5 122 115 242
4 68 76 146
3 38 27 66
2 17 12 29
1 2 3 5
0 (@) 0 0 0
0 ($) 4 2 7
(@) These students attempted some of the problems
($) 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 2 4
24 0 0 2 7
23 0 1 8 9
22 1 0 4 16
21 0 4 5 34
20 0 1 20 39
19 2 5 30 57
18 1 6 23 59
17 1 11 50 86
16 1 17 58 109
15 0 27 66 138
14 2 41 99 160
13 3 52 121 196
12 4 70 120 208
11 6 91 146 235
10 4 95 153 254
9 13 128 159 208
8 5 137 177 210
7 10 152 121 189
6 4 125 96 134
5 2 92 59 86
4 3 64 43 35
3 0 36 16 13
2 0 12 9 8
1 0 2 2 1
0(@) 0 3 0 3
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
73 1
71 1
69 3
68 2
67 1
66 1
65 5
64 3
63 4
61 5
59 2
58 8
57 3
56 2
55 1
54 2
53 3
52 2
51 6
49 2
48 2
47 1
46 3
45 5
42 3
40 4
38 4
35 1
Table of Item Difficulty for the 2008
American Mathematics Contest 8
Tabulation of responses by 5378 Students
Percent of Responses
ITEM A B C D E OMITS ?
____ _____ _____ _____ _____ _____ _____ _____
1 2.06 87.75* 6.77 3.18 0.09 0.15 0.00
2 54.30* 16.16 7.68 16.08 4.96 0.74 0.07
3 72.74* 6.99 2.84 3.48 13.72 0.17 0.06
4 6.10 14.32 62.55* 11.88 3.89 1.23 0.04
5 5.82 10.23 9.37 16.27 57.36* 0.80 0.15
6 30.31 12.77 2.53 52.96* 1.12 0.20 0.11
7 6.47 5.50 7.66 17.53 61.70* 1.00 0.13
8 7.88 3.96 9.19 75.83* 2.79 0.30 0.06
9 6.43 3.01 3.51 24.12* 62.35 0.41 0.17
10 40.13 8.24 11.68 33.06* 6.19 0.67 0.04
11 72.37* 13.35 7.25 2.08 4.33 0.52 0.09
12 11.31 25.34 30.38* 18.33* 13.82* 0.74 0.07
13 5.02 9.67 40.74* 10.95 31.31 2.10 0.20
14 23.47 21.10 24.56* 8.16 21.83 0.73 0.15
15 16.88 35.35* 23.00 15.14 6.53 3.07 0.04
16 17.33 20.14 15.88 35.81* 9.24 1.51 0.09
17 21.29 25.36 18.52 24.12* 7.64 2.94 0.13
18 22.15 18.98 19.39 13.18 23.50* 2.62 0.17
19 34.99 23.89* 10.73 19.28 8.31 2.60 0.19
20 18.45 23.45* 32.04 11.71 9.91 4.28 0.17
21 41.86 19.26 18.65* 13.07 3.14 3.92 0.09
22 23.32* 22.55 19.26 19.25 10.73 4.57 0.32
23 10.52 20.30 23.61* 27.22 12.03 6.02 0.28
24 27.97 20.94 21.64* 12.98 10.52 5.82 0.13
25 20.01* 18.06 19.26 17.72 18.87 5.95 0.13
(*) Correct Response
(?) Response the computer was unable to read due to incomplete
erasures or two answers marked for the same problem