2005 State Report for Oregon
Number of schools returning results 31
Average of school highest score 17.26
Average school team score 47.58
# of State Student Participants 2088
Overall State Average Score 10.11
Average Score by Grade level
Grade # of Students Average
5th 29 7.10
6th 325 8.70
7th 694 9.81
8th 1013 10.92
Number of Female Students 1010
Average Score of Female Students 9.45
Average Female Scores by Grade
Grade # of Students Average
5th 12 6.50
6th 167 8.47
7th 342 9.11
8th 480 10.16
Number of Male Participants 1046
Average Score of Male Participants 10.75
Average score for Males by Grade
Grade # of Students Average
5th 17 7.53
6th 155 8.98
7th 343 10.51
8th 518 11.63
2005 American Mathematics Contest 8
Number of Students Achieving Indicated Score
SCORE MALE FEMALE TOTAL*
25 0 0 0
24 3 0 3
23 4 0 4
22 5 2 7
21 12 2 14
20 16 1 17
19 19 7 26
18 20 12 33
17 23 10 34
16 42 19 62
15 53 28 84
14 53 44 98
13 75 69 147
12 82 89 173
11 107 89 200
10 92 104 197
9 106 111 218
8 87 104 195
7 94 92 186
6 58 102 166
5 33 57 91
4 31 39 72
3 18 20 39
2 11 3 14
1 2 5 7
0 (@) 0 0 0
0 ($) 0 1 1
(@) These students attempted some of the problems
($) 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 1 2
23 0 0 1 3
22 0 1 1 5
21 0 1 3 10
20 0 0 8 9
19 0 3 5 18
18 0 2 6 25
17 0 3 12 19
16 0 4 21 37
15 0 4 19 61
14 1 5 25 66
13 1 17 39 88
12 0 28 54 90
11 2 25 70 102
10 2 25 82 86
9 2 37 85 92
8 4 38 71 80
7 3 43 63 72
6 5 37 54 64
5 3 21 32 34
4 3 16 21 29
3 3 7 14 14
2 0 6 3 5
1 0 2 4 1
0(@) 0 0 0 1
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 2088 Students
Percent of Responses
ITEM A B C D E OMITS ?
____ _____ _____ _____ _____ _____ _____ _____
1 0.53 68.20* 23.04 7.76 0.34 0.14 0.00
2 11.45 16.62 64.85* 3.83 2.59 0.67 0.00
3 5.17 7.76 32.47 45.74* 8.19 0.67 0.00
4 22.94 4.79 58.76* 9.34 3.16 0.96 0.05
5 4.74 66.33* 8.14 3.35 17.00 0.38 0.05
6 17.62 17.53 30.03* 16.86 15.61 2.20 0.14
7 23.95 28.02* 8.33 35.25 3.50 0.96 0.00
8 14.80 10.73 12.07 9.15 51.53* 1.72 0.00
9 11.59 21.46 17.24 41.52* 5.46 2.63 0.10
10 2.92 2.16 2.44 88.03* 3.88 0.48 0.10
11 7.42 8.09 62.74* 6.66 13.17 1.92 0.00
12 5.32 5.51 23.23 53.69* 10.97 1.20 0.10
13 19.16 44.59 24.66* 5.03 4.79 1.72 0.05
14 15.23 37.16* 5.41 20.26 18.82 3.11 0.00
15 19.44 22.22 27.30* 11.16 14.89 4.93 0.05
16 5.41 7.95 11.49 19.92* 52.30 2.92 0.00
17 12.07 3.02 30.51 5.94 46.12* 2.16 0.19
18 25.57 18.34 31.18* 14.85 5.51 4.41 0.14
19 42.96* 22.70 15.04 6.18 7.14 5.75 0.24
20 25.53* 22.13 20.74 15.28 7.14 9.00 0.19
21 24.47 35.34 21.46* 5.46 5.99 7.09 0.19
22 11.02 14.56 20.79 26.82 17.86* 8.86 0.10
23 9.00 22.41* 28.16 14.75 12.16 13.22 0.29
24 13.22 13.36* 22.70 17.24 19.20 14.13 0.14
25 21.84* 22.27 16.14 14.37 9.53 15.76 0.10
(*) Correct Response
(?) Response the computer was unable to read due to incomplete
erasures or two answers marked for the same problem