2008 AMC8 Report for all schools in Colorado
Number of schools returning results 30
Average of school highest score 19.03
Average school team score 52.33
# of State Student Participants 1581
Overall State Average Score 11.56
Average Score by Grade level
Grade # of Students Average
5th 60 8.45
6th 213 9.81
7th 444 11.88
8th 792 12.21
Number of Female Students 683
Average Score of Female Students 11.30
Average Female Scores by Grade
Grade # of Students Average
5th 26 8.00
6th 89 9.79
7th 200 11.51
8th 357 11.84
Number of Male Participants 830
Average Score of Male Participants 11.86
Average score for Males by Grade
Grade # of Students Average
5th 33 8.91
6th 122 9.82
7th 234 12.24
8th 426 12.53
2008 American Mathematics Contest 8
Number of Students Achieving Indicated Score
SCORE MALE FEMALE TOTAL*
25 2 0 2
24 3 0 3
23 1 3 4
22 5 1 6
21 7 4 11
20 13 7 20
19 22 12 35
18 23 8 31
17 36 20 56
16 37 26 66
15 50 41 94
14 66 43 111
13 73 83 163
12 89 77 172
11 90 64 166
10 70 81 162
9 68 62 138
8 60 53 119
7 46 37 90
6 34 31 65
5 15 14 30
4 15 10 25
3 4 1 5
2 1 1 2
1 0 0 0
0 (@) 0 0 0
0 ($) 0 4 5
(@) These students attempted some of the problems
($) 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 2
24 0 1 1 1
23 0 0 0 4
22 0 0 0 6
21 0 1 2 8
20 1 0 6 13
19 1 3 6 25
18 0 3 13 15
17 1 1 16 38
16 0 5 23 37
15 3 4 30 56
14 3 13 29 61
13 3 11 58 83
12 3 21 58 83
11 2 18 44 89
10 6 28 47 67
9 1 20 40 71
8 5 23 26 59
7 7 23 21 33
6 6 20 16 19
5 10 7 3 10
4 4 9 4 8
3 1 2 0 2
2 2 0 0 0
1 0 0 0 0
0(@) 1 0 1 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
73 1
71 1
65 1
63 1
62 1
61 1
60 1
59 2
58 2
57 1
56 1
54 1
53 2
51 2
48 2
47 1
46 1
45 3
41 1
40 1
36 1
33 1
32 1
Table of Item Difficulty for the 2008
American Mathematics Contest 8
Tabulation of responses by 1581 Students
Percent of Responses
ITEM A B C D E OMITS ?
____ _____ _____ _____ _____ _____ _____ _____
1 1.71 91.65* 3.73 2.53 0.06 0.32 0.00
2 63.82* 14.29 4.62 13.09 3.29 0.89 0.00
3 76.60* 7.08 1.96 3.29 10.56 0.44 0.06
4 4.93 9.49 70.52* 9.55 3.73 1.77 0.00
5 4.62 8.67 6.51 12.27 66.41* 1.45 0.06
6 17.52 13.03 1.96 66.03* 1.01 0.38 0.06
7 3.48 3.92 5.00 14.42 72.11* 0.82 0.25
8 5.19 2.78 6.20 82.99* 2.34 0.44 0.06
9 4.87 2.78 2.85 28.02* 60.72 0.70 0.06
10 43.26 6.26 9.68 35.48* 3.92 1.33 0.06
11 78.24* 11.07 5.69 1.52 2.59 0.89 0.00
12 10.88 23.21 35.86* 17.71* 10.94* 1.27 0.13
13 3.80 11.39 48.51* 10.31 23.34 2.66 0.00
14 22.83 19.10 24.79* 8.35 23.91 0.89 0.13
15 17.14 35.48* 21.82 13.47 7.78 4.17 0.13
16 14.99 16.57 17.27 41.49* 6.77 2.85 0.06
17 21.51 23.40 15.62 26.38* 7.72 5.25 0.13
18 17.96 16.13 19.80 13.73 27.01* 5.19 0.19
19 32.26 24.67* 11.01 17.14 9.23 5.63 0.06
20 18.85 22.14* 30.99 11.20 9.11 7.53 0.19
21 35.23 19.92 20.49* 12.65 3.80 7.72 0.19
22 23.21* 20.75 18.66 18.98 8.92 9.36 0.13
23 9.99 19.42 22.39* 27.26 10.06 10.75 0.13
24 19.73 18.79 25.55* 12.52 12.46 10.82 0.13
25 17.96* 16.95 18.47 16.64 18.91 11.01 0.06
(*) Correct Response
(?) Response the computer was unable to read due to incomplete
erasures or two answers marked for the same problem