2005 State Report for North Dakota
Number of schools returning results 16
Average of school highest score 13.25
Average school team score 36.63
# of State Student Participants 464
Overall State Average Score 8.15
Average Score by Grade level
Grade # of Students Average
6th 3 10.67
7th 178 7.59
8th 280 8.51
Number of Female Students 226
Average Score of Female Students 7.85
Average Female Scores by Grade
Grade # of Students Average
7th 89 7.19
8th 136 8.32
Number of Male Participants 234
Average Score of Male Participants 8.44
Average score for Males by Grade
Grade # of Students Average
6th 3 10.67
7th 89 7.99
8th 142 8.67
2005 American Mathematics Contest 8
Number of Students Achieving Indicated Score
SCORE MALE FEMALE TOTAL*
25 0 0 0
24 0 0 0
23 0 0 0
22 0 0 0
21 0 0 0
20 1 0 1
19 1 0 1
18 3 1 4
17 1 0 1
16 3 0 3
15 5 4 9
14 3 8 11
13 11 4 16
12 11 12 23
11 19 16 35
10 26 18 44
9 22 22 44
8 24 29 54
7 25 35 60
6 34 22 56
5 20 30 52
4 17 10 27
3 5 9 14
2 1 4 5
1 1 1 2
0 (@) 0 1 1
0 ($) 1 0 1
(@) These students attempted some of the problems
($) 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 0 0
23 0 0 0 0
22 0 0 0 0
21 0 0 0 0
20 0 1 0 0
19 0 0 0 1
18 0 0 1 3
17 0 0 0 1
16 0 0 0 3
15 0 0 1 8
14 0 0 4 7
13 0 0 5 11
12 0 0 7 16
11 0 0 14 21
10 0 0 17 27
9 0 0 17 27
8 0 0 17 37
7 0 0 25 35
6 0 2 25 29
5 0 0 20 30
4 0 0 11 15
3 0 0 8 6
2 0 0 3 2
1 0 0 1 1
0(@) 0 0 2 0
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 464 Students
Percent of Responses
ITEM A B C D E OMITS ?
____ _____ _____ _____ _____ _____ _____ _____
1 0.65 49.57* 41.16 8.19 0.22 0.22 0.00
2 15.30 18.32 50.22* 5.82 9.70 0.43 0.22
3 7.33 4.74 41.38 37.50* 8.84 0.22 0.00
4 37.72 4.96 42.24* 11.42 3.02 0.65 0.00
5 6.68 51.94* 11.42 5.39 24.14 0.43 0.00
6 23.92 19.40 22.20* 19.18 14.44 0.86 0.00
7 22.84 15.52* 9.27 48.06 3.66 0.43 0.22
8 20.91 15.95 14.44 9.27 38.36* 1.08 0.00
9 14.01 19.18 21.12 37.72* 6.90 1.08 0.00
10 4.09 4.53 5.39 77.37* 7.76 0.86 0.00
11 10.56 8.41 51.94* 7.54 20.47 1.08 0.00
12 7.97 6.03 29.96 40.73* 14.66 0.65 0.00
13 23.71 45.47 17.46* 8.84 3.45 0.65 0.43
14 21.12 29.74* 6.90 22.41 17.46 2.16 0.22
15 21.55 24.35 28.66* 10.34 10.99 4.09 0.00
16 7.97 7.33 9.27 14.44* 59.05 1.94 0.00
17 16.16 2.16 43.75 5.60 30.60* 1.72 0.00
18 39.01 17.67 22.63* 13.79 4.53 2.16 0.22
19 40.30* 24.14 14.66 9.05 9.05 2.16 0.65
20 20.69* 24.78 22.41 16.59 9.27 5.82 0.43
21 36.42 32.54 17.67* 5.17 3.88 3.88 0.43
22 12.07 18.10 20.69 25.00 18.75* 4.96 0.43
23 9.70 21.34* 27.16 15.30 19.40 7.11 0.00
24 15.09 13.79* 31.25 15.73 17.24 6.90 0.00
25 23.28* 23.92 18.97 13.79 12.72 7.33 0.00
(*) Correct Response
(?) Response the computer was unable to read due to incomplete
erasures or two answers marked for the same problem