2005 State Report for Minnesota
Number of schools returning results 50
Average of school highest score 17.70
Average school team score 48.96
# of State Student Participants 3011
Overall State Average Score 9.86
Average Score by Grade level
Grade # of Students Average
5th 31 7.03
6th 167 8.65
7th 1023 9.50
8th 1750 10.23
Number of Female Students 1327
Average Score of Female Students 9.41
Average Female Scores by Grade
Grade # of Students Average
5th 16 6.94
6th 69 7.93
7th 427 9.04
8th 804 9.78
Number of Male Participants 1623
Average Score of Male Participants 10.25
Average score for Males by Grade
Grade # of Students Average
5th 15 7.13
6th 94 9.32
7th 586 9.83
8th 906 10.64
2005 American Mathematics Contest 8
Number of Students Achieving Indicated Score
SCORE MALE FEMALE TOTAL*
25 0 0 0
24 2 0 2
23 5 0 5
22 3 3 6
21 6 0 7
20 6 0 6
19 22 4 26
18 19 14 33
17 35 17 52
16 41 23 64
15 81 40 124
14 81 61 145
13 130 88 223
12 144 119 267
11 165 123 298
10 176 145 328
9 152 139 296
8 148 126 277
7 140 144 289
6 101 109 217
5 78 67 146
4 43 54 100
3 28 38 69
2 9 11 21
1 5 1 6
0 (@) 1 0 1
0 ($) 2 1 3
(@) These students attempted some of the problems
($) These students attempted none of the problems
(*) Total includes students who failed to mark their gender
2005 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 0 2
23 0 1 1 2
22 0 0 1 5
21 0 0 4 3
20 0 0 2 4
19 1 0 6 19
18 0 2 9 22
17 0 2 15 34
16 0 5 12 46
15 0 4 37 82
14 1 7 41 95
13 0 8 71 140
12 2 10 84 164
11 0 6 100 186
10 2 14 115 194
9 0 14 101 175
8 5 20 98 152
7 5 19 117 146
6 3 21 87 104
5 5 11 47 81
4 3 16 37 44
3 3 6 24 35
2 1 1 10 9
1 0 0 3 3
0(@) 0 0 1 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
Table of Item Difficulty for the 2005
American Mathematics Contest 8
Tabulation of responses by 3011 Students
Percent of Responses
ITEM A B C D E OMITS ?
____ _____ _____ _____ _____ _____ _____ _____
1 0.90 65.23* 25.11 8.30 0.20 0.27 0.00
2 10.73 15.88 66.56* 3.22 2.96 0.66 0.00
3 5.28 8.70 32.05 44.54* 8.67 0.70 0.07
4 29.62 4.42 53.17* 8.87 2.99 0.90 0.03
5 6.51 63.57* 8.04 3.19 18.37 0.27 0.07
6 19.33 17.70 28.53* 17.67 15.28 1.43 0.07
7 23.51 24.58* 9.47 38.66 2.99 0.80 0.00
8 16.11 10.59 13.42 9.43 49.12* 1.26 0.07
9 11.23 21.65 18.10 40.32* 6.51 2.06 0.13
10 2.82 2.92 2.59 87.38* 3.12 1.10 0.07
11 8.00 7.90 62.90* 6.38 13.25 1.56 0.00
12 5.55 6.11 21.06 54.60* 11.16 1.46 0.07
13 19.86 45.96 22.22* 5.68 4.55 1.63 0.10
14 15.31 34.84* 5.11 22.19 19.79 2.76 0.00
15 20.86 23.31 27.13* 11.59 12.59 4.48 0.03
16 4.78 8.00 11.49 20.49* 52.14 2.99 0.10
17 9.56 3.92 28.99 6.11 48.42* 2.69 0.30
18 27.83 19.53 28.66* 14.51 5.38 3.99 0.10
19 36.60* 27.90 15.28 7.34 7.34 5.31 0.23
20 25.94* 19.73 22.95 16.61 6.84 7.87 0.07
21 22.58 36.80 22.19* 5.91 5.61 6.71 0.20
22 11.49 13.92 21.89 25.67 18.47* 8.40 0.17
23 9.80 22.65* 26.54 13.88 15.48 11.16 0.50
24 13.25 14.25* 23.88 18.20 18.43 11.82 0.17
25 24.01* 22.88 15.97 13.02 10.83 13.18 0.10
(*) Correct Response
(?) Response the computer was unable to read due to incomplete
erasures or two answers marked for the same problem