2005 State Report for Idaho
Number of schools returning results 10
Average of school highest score 15.70
Average school team score 44.60
# of State Student Participants 539
Overall State Average Score 9.02
Average Score by Grade level
Grade # of Students Average
6th 31 8.13
7th 174 8.51
8th 328 9.42
Number of Female Students 246
Average Score of Female Students 8.41
Average Female Scores by Grade
Grade # of Students Average
6th 8 7.25
7th 67 7.72
8th 168 8.79
Number of Male Participants 278
Average Score of Male Participants 9.52
Average score for Males by Grade
Grade # of Students Average
6th 23 8.43
7th 98 8.96
8th 155 10.06
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 1 0 1
20 0 0 0
19 0 1 1
18 5 0 5
17 3 1 4
16 7 3 10
15 9 4 14
14 14 12 26
13 13 11 24
12 18 7 29
11 34 15 51
10 37 22 59
9 24 31 59
8 32 33 66
7 22 42 65
6 21 23 46
5 20 16 36
4 9 17 26
3 7 7 14
2 1 1 2
1 1 0 1
0 (@) 0 0 0
0 ($) 0 0 0
(@) These students attempted some of the problems
($) 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 1
20 0 0 0 0
19 0 0 0 1
18 0 0 1 4
17 0 0 1 3
16 0 1 2 7
15 0 0 5 9
14 0 1 5 20
13 0 0 7 17
12 0 0 8 21
11 0 2 18 31
10 0 7 14 37
9 0 3 20 35
8 0 3 22 41
7 0 4 21 38
6 0 4 18 24
5 0 4 12 18
4 0 1 13 12
3 0 1 6 7
2 0 0 1 1
1 0 0 0 1
0(@) 0 0 0 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 539 Students
Percent of Responses
ITEM A B C D E OMITS ?
____ _____ _____ _____ _____ _____ _____ _____
1 0.56 61.22* 28.57 9.65 0.00 0.00 0.00
2 12.62 16.51 62.15* 4.08 3.90 0.74 0.00
3 7.98 7.24 37.29 40.26* 6.12 1.11 0.00
4 26.35 5.57 56.03* 7.24 3.34 1.48 0.00
5 8.35 59.00* 8.53 4.27 19.67 0.19 0.00
6 16.14 20.59 24.30* 22.45 13.73 2.78 0.00
7 25.23 20.78* 11.32 39.52 2.23 0.93 0.00
8 14.66 11.87 11.69 12.06 47.68* 1.86 0.19
9 15.03 20.22 19.67 35.06* 5.19 4.82 0.00
10 4.45 3.34 2.04 85.90* 3.71 0.56 0.00
11 8.53 5.57 56.96* 8.72 15.96 4.08 0.19
12 5.38 5.94 26.53 50.09* 9.83 2.04 0.19
13 17.25 51.21 18.92* 5.57 5.01 2.04 0.00
14 15.03 32.65* 8.16 20.96 19.11 4.08 0.00
15 19.67 26.16 24.86* 11.32 9.46 8.35 0.19
16 3.71 7.05 12.80 17.44* 53.43 5.57 0.00
17 11.32 3.34 35.81 8.72 36.18* 4.64 0.00
18 28.57 19.11 22.08* 17.63 5.01 7.61 0.00
19 35.25* 23.75 17.81 7.05 7.42 8.16 0.56
20 24.68* 20.78 18.37 15.58 9.09 11.32 0.19
21 25.97 33.95 22.63* 5.19 3.90 8.35 0.00
22 10.76 13.54 18.55 27.46 16.88* 12.62 0.19
23 10.76 18.18* 24.86 13.54 15.21 17.44 0.00
24 10.76 14.47* 20.96 18.18 17.07 18.37 0.19
25 18.74* 23.75 17.81 9.65 9.09 20.96 0.00
(*) Correct Response
(?) Response the computer was unable to read due to incomplete
erasures or two answers marked for the same problem