American Mathematics Competitions
2006 AMC 10 A Results for Iowa
GRAND STATISTICS
TOTAL NUMBER of official students taking exam: 1249
Number of unofficial participants: 0
Average score of participants: 76.3
Average score for female students is: 73.9 ( 572 Students)
Average score for male students is: 78.9 ( 627 Students)
Average score for unspecified gender is 70.6 ( 50 Students)
Average score for grade 10 is: 77.3 ( 572 Students)
Average score for grade 9 is: 75.3 ( 573 Students)
Average score for grade 8 and below is: 79.7 ( 76 Students)
Average score with unknown grade: 66.6 ( 28 Students)
AIME qualifying score = 120.0 or better
Number of AIME qualifers 14
Number of schools returning results 36
Average school winning score 105.06
American Mathematics Competitions
2006 AMC 12 A Results for Iowa
GRAND STATISTICS
TOTAL NUMBER of official students taking exam: 1810
Number of unofficial participants: 0
Average score of participants: 78.8
Average score for female students is: 76.4 ( 834 Students)
Average score for male students is: 81.1 ( 921 Students)
Average score for unspecified gender is 76.7 ( 55 Students)
Average score for grade 12 is: 81.3 ( 699 Students)
Average score for grade 11 is: 77.4 ( 736 Students)
Average score for grade 10 is: 78.3 ( 216 Students)
Average score for grade 9 is: 74.4 ( 129 Students)
Average score for grade 8 and below is: 72.0 ( 1 Student)
Average score with unknown grade: 75.3 ( 29 Students)
AIME qualifying score = 100.0 or better
Number of AIME qualifers 172
Number of schools returning results 50
Average school winning score 105.72
Average school team score 301.52
American Mathematics Competitions
2006 AMC 10 B Results for Iowa
GRAND STATISTICS
TOTAL NUMBER of official students taking exam: 525
Number of unofficial participants: 0
Average score of participants: 62.1
Average score for female students is: 60.3 ( 221 Students)
Average score for male students is: 64.0 ( 276 Students)
Average score for unspecified gender is 56.7 ( 28 Students)
Average score for grade 10 is: 65.1 ( 289 Students)
Average score for grade 9 is: 56.7 ( 202 Students)
Average score for grade 8 and below is: 69.3 ( 28 Students)
Average score with unknown grade: 60.7 ( 6 Students)
AIME qualifying score = 120.0 or better
Number of AIME qualifers 5
Number of schools returning results 17
Average school winning score 102.76
American Mathematics Competitions
2006 AMC 12 B Results for Iowa
GRAND STATISTICS
TOTAL NUMBER of official students taking exam: 716
Number of unofficial participants: 0
Average score of participants: 81.0
Average score for female students is: 76.3 ( 295 Students)
Average score for male students is: 84.5 ( 404 Students)
Average score for unspecified gender is 80.0 ( 17 Students)
Average score for grade 13 is: 63.0 ( 1 Student)
Average score for grade 12 is: 85.0 ( 248 Students)
Average score for grade 11 is: 78.0 ( 340 Students)
Average score for grade 10 is: 80.6 ( 98 Students)
Average score for grade 9 is: 91.9 ( 16 Students)
Average score with unknown grade: 74.5 ( 13 Students)
AIME qualifying score = 100.0 or better
Number of AIME qualifers 84
Number of schools returning results 24
Average school winning score 110.85
Average school team score 304.15
2006 State AMC 12 TEAM Score Distribution
-----------------------------------------------
score A B Rank
-----------------------------------------------
412.5 1 1
392.5 1 2
381.5 1 3
375.0 1 4
371.5 1 5
357.5 1 6
349.0 1 7
347.0 1 8
346.0 1 9
342.5 1 10
341.5 1 11
340.0 2 12
339.5 1 14
337.5 1 1 15
335.0 1 17
333.0 1 18
330.0 1 19
328.0 1 20
325.5 2 21
323.5 2 23
322.5 1 25
322.0 1 26
319.0 2 27
318.5 1 29
316.5 1 1 30
313.0 1 32
312.0 1 33
309.0 1 34
306.0 1 35
302.0 1 36
300.5 2 37
297.0 1 39
295.5 1 40
295.0 1 1 41
293.0 1 43
291.5 1 44
290.0 1 45
287.5 1 46
286.0 1 47
285.0 1 1 48
282.5 1 50
282.0 1 51
281.5 1 52
280.0 1 53
278.5 1 54
277.0 1 55
276.0 1 56
272.5 1 1 57
271.0 1 59
269.5 1 1 60
268.5 1 62
267.5 1 63
266.0 1 64
265.0 1 65
262.0 1 66
259.5 1 67
257.0 1 68
253.5 1 69
251.5 1 70
231.5 1 71
230.5 1 72
226.0 1 73
112.0 1 74
2006 AMC Contest Score Distributions
-----------------------------------------------
score 12 A 12 B 10 A 10 B
-----------------------------------------------
144.0 1
140.5 1 1
139.5 2
137.0 1
136.0 1
134.5 1 1
133.5 1 1
132.0 1
131.0 1
130.0 1 1
129.0 1 1
127.5 1
126.5 4 1 1
126.0 1
125.5 2
125.0 1
124.0 1 3
123.0 1 1 1
122.5 2
122.0 2 1
121.5 1 1
120.5 1
119.5 4 3
118.5 9 1
118.0 1 1
117.0 2 3
116.0 5 1 1 1
115.5 1 1 1
115.0 4 2
114.5 1 2
114.0 1 1
113.5 7 2
113.0 1 1
112.5 9 5 5
112.0 2 2
111.5 5 7
111.0 1 2
110.0 7 2 4
109.5 1
109.0 5 1 1
108.5 3 1
108.0 2 3 2
107.5 4 7
107.0 1
106.5 10 4 3 1
105.5 15 7 2 1
105.0 4
104.5 2 4 1 1
104.0 10 2 8 1
103.5 2
103.0 9 4 6 2
102.5 1
102.0 8 12 4 1
101.5 7 1 6
101.0 5 4 1
100.5 22 1 5 1
100.0 1
99.5 15 5 5 3
99.0 2 3
98.5 15 11 7
98.0 5 1 5 2
97.5 5 4 2 1
97.0 17 3 2
96.5 3 1
96.0 15 9 13 5
95.5 8 2 4
95.0 17 19 16
94.5 17 3 9
94.0 6 2 2 1
93.5 14 7 16 2
93.0 3 3
92.5 26 10 13 2
92.0 10 1 10 1
91.5 10 12 5 1
91.0 24 11 10 3
90.5 7 6 10 1
90.0 23 12 16 6
89.5 5 1 7 1
89.0 24 22 13 2
88.5 10 3 7 1
88.0 14 11 8 1
87.5 15 7 22
87.0 9 4 7 1
86.5 28 23 19 3
86.0 7 1 12 3
85.5 17 14 16 1
85.0 24 5 9 2
84.5 26 13 12 1
84.0 32 18 20 2
83.5 10 3 8 2
83.0 45 17 11 6
82.5 11 2 14 3
82.0 35 17 16 4
81.5 20 2 18 4
81.0 20 5 12 3
80.5 36 7 25 3
80.0 14 5 12 3
79.5 26 18 19 4
79.0 11 8 17 4
78.5 42 11 12 4
78.0 23 12 26 2
77.5 17 8 26
77.0 44 10 30 5
76.5 18 5 10 3
76.0 41 14 14 5
75.5 20 3 21 3
75.0 14 16 16 4
74.5 24 3 18 2
74.0 17 8 12
73.5 35 4 15 4
73.0 24 6 11 1
72.5 43 7 13 7
72.0 28 4 17 8
71.5 25 7 16 3
71.0 23 12 12 12
70.5 16 6 10 2
70.0 25 8 11 9
69.5 23 1 11 3
69.0 19 8 12 2
68.5 18 5 11 8
68.0 16 5 9 9
67.5 20 6 17 4
67.0 14 3 17 5
66.5 24 7 16 1
66.0 12 3 15 3
65.5 14 4 6 7
65.0 19 8 14 1
64.5 5 1 11 4
64.0 13 3 10 8
63.5 3 6 10 5
63.0 17 4 9 3
62.5 14 5 11 5
62.0 18 3 10 9
61.5 12 4 8 5
61.0 10 3 12 2
60.5 16 7 10 5
60.0 16 2 13 7
59.5 8 4 9 7
59.0 14 5 13 9
58.5 7 4 6 3
58.0 10 3 11 7
57.5 5 3 2 9
57.0 11 3 5 3
56.5 7 2 5 5
56.0 7 2 4 5
55.5 3 2 5 7
55.0 4 1 6 3
54.5 3 1 5 5
54.0 7 6 7 7
53.5 5 2 3 12
53.0 4 3 1 5
52.5 9 2 5 5
52.0 4 2 4 5
51.5 5 1 6 4
51.0 3 2 5 6
50.5 11 4 6
50.0 2 3 3 4
49.5 4 2 4 4
49.0 2 2 4
48.5 1 2 4
48.0 3 2 6 9
47.5 2 2 3
47.0 1 1 5 6
46.5 1 3 1
46.0 1 2 5 1
45.5 1 2 1
45.0 4 4
44.5 2 2 9
44.0 2 2 1
43.5 3 3 2
43.0 1 1 4
42.5 1
42.0 3 2 5 6
41.5 1
41.0 1 4 4
40.5 3 1
40.0 2 1
39.5 1 1
39.0 1 2 3
38.5 2 2 1
38.0 1 1 2
37.5 1 2 3 2
37.0 1 6
36.5 2 1
36.0 5 3 3 12
35.5 1 1 2
35.0 2 1
34.5 2 3
34.0 1
33.5 1
33.0 1 1
32.5 3
32.0 2
31.0 2
30.5 1 1
30.0 4 3 2 7
29.5 1
29.0 2
28.5 1
28.0 1
27.5 1
26.5 2
26.0 1
24.0 1 1
23.0 1
20.5 4
18.5 1
18.0 3
12.0 1 3
American Mathematics Competitions
2006 AMC 10 A Results for Iowa
SCORE DISTRIBUTION
GENDER
Score # Students Score # Students Score # Students
male female male female male female
150.0 125.0 1 100.0
149.5 124.5 99.5 3 2
149.0 124.0 2 1 99.0 1 1
148.5 123.5 98.5 2 5
148.0 123.0 98.0 4
147.5 122.5 2 97.5 1
147.0 122.0 97.0 2
146.5 121.5 96.5 2 1
146.0 121.0 96.0 9 2
145.5 120.5 1 95.5 4
145.0 120.0 95.0 12 4
144.5 119.5 94.5 6 3
144.0 119.0 94.0 1 1
143.5 118.5 93.5 11 5
143.0 118.0 1 93.0 3
142.5 117.5 92.5 8 5
142.0 117.0 92.0 6 4
141.5 116.5 91.5 3 2
141.0 116.0 1 91.0 7 3
140.5 1 115.5 1 90.5 5 5
140.0 115.0 90.0 8 8
139.5 114.5 2 89.5 5 2
139.0 114.0 89.0 4 8
138.5 113.5 88.5 4 3
138.0 113.0 88.0 2 5
137.5 112.5 4 1 87.5 14 7
137.0 112.0 2 87.0 5 1
136.5 111.5 86.5 8 11
136.0 1 111.0 2 86.0 5 7
135.5 110.5 85.5 5 10
135.0 110.0 2 2 85.0 6 3
134.5 1 109.5 1 84.5 5 6
134.0 109.0 1 84.0 10 10
133.5 1 108.5 1 1 83.5 3 5
133.0 108.0 1 1 83.0 7 4
132.5 107.5 6 82.5 9 4
132.0 107.0 1 82.0 7 9
131.5 106.5 2 81.5 10 7
131.0 1 106.0 81.0 6 6
130.5 105.5 1 1 80.5 10 14
130.0 1 105.0 80.0 7 5
129.5 104.5 1 79.5 12 6
129.0 104.0 6 2 79.0 9 8
128.5 103.5 2 78.5 3 9
128.0 103.0 5 1 78.0 20 6
127.5 102.5 1 77.5 12 14
127.0 102.0 2 2 77.0 18 11
126.5 101.5 3 3 76.5 5 5
126.0 1 101.0 1 76.0 7 7
125.5 100.5 3 2 75.5 11 9
American Mathematics Competitions
2006 AMC 10 A Results for Iowa
SCORE DISTRIBUTION
GENDER
Score # Students Score # Students Score # Students
male female male female male female
75.0 7 8 50.0 2 1 25.0
74.5 8 10 49.5 3 1 24.5
74.0 6 6 49.0 1 1 24.0 1
73.5 4 10 48.5 23.5
73.0 5 6 48.0 1 4 23.0
72.5 4 9 47.5 1 1 22.5
72.0 8 9 47.0 2 2 22.0
71.5 8 7 46.5 2 1 21.5
71.0 3 9 46.0 2 3 21.0
70.5 6 4 45.5 2 20.5
70.0 4 5 45.0 3 1 20.0
69.5 5 6 44.5 1 19.5
69.0 5 6 44.0 1 19.0
68.5 9 2 43.5 2 18.5
68.0 2 7 43.0 1 18.0
67.5 7 9 42.5 17.5
67.0 9 7 42.0 3 2 17.0
66.5 7 9 41.5 16.5
66.0 8 7 41.0 1 3 16.0
65.5 2 3 40.5 1 15.5
65.0 7 7 40.0 15.0
64.5 5 6 39.5 14.5
64.0 5 5 39.0 1 1 14.0
63.5 3 6 38.5 1 1 13.5
63.0 2 7 38.0 13.0
62.5 4 7 37.5 1 1 12.5
62.0 4 5 37.0 1 12.0 1
61.5 3 5 36.5 2 11.5
61.0 3 6 36.0 1 2 11.0
60.5 1 9 35.5 10.5
60.0 6 7 35.0 2 10.0
59.5 3 5 34.5 1 1 9.5
59.0 9 4 34.0 9.0
58.5 2 4 33.5 8.5
58.0 3 6 33.0 8.0
57.5 2 32.5 7.5
57.0 2 3 32.0 7.0
56.5 3 2 31.5 6.5
56.0 2 2 31.0 6.0
55.5 2 3 30.5 5.5
55.0 3 2 30.0 1 1 5.0
54.5 2 3 29.5 4.5
54.0 4 1 29.0 4.0
53.5 1 1 28.5 3.5
53.0 1 28.0 3.0
52.5 2 3 27.5 2.5
52.0 2 2 27.0 2.0
51.5 3 3 26.5 1.5
51.0 2 3 26.0 1.0
50.5 3 25.5 .5
0.0 0 0
American Mathematics Competitions
2006 AMC 10 A Results for Iowa
SCORE DISTRIBUTION
score -----------grade-----------
6 7 8 9 10 unknown
---------------------------
140.5 1
136.0 1
134.5 1
133.5 1
131.0 1
130.0 1
126.0 1
125.0 1
124.0 3
122.5 2
120.5 1
118.0 1
116.0 1
115.5 1
114.5 2
112.5 1 1 3
112.0 1 1
111.0 1 1
110.0 4
109.5 1
109.0 1
108.5 1 2
108.0 2
107.5 1 1 5
107.0 1
106.5 1 1 1
105.5 2
104.5 1
104.0 2 6
103.5 1 1
103.0 2 4
102.5 1
102.0 2 2
101.5 4 2
101.0 1
100.5 1 3 1
99.5 2 3
99.0 3
98.5 4 3
98.0 1 3 1
97.5 1 1
97.0 1 1
96.5 1 1 1
96.0 7 6
95.5 1 3
95.0 3 6 7
94.5 1 2 3 3
94.0 2
93.5 6 10
93.0 2 1
92.5 3 10
92.0 5 5
91.5 5
91.0 1 2 6 1
90.5 5 5
90.0 2 10 4
89.5 1 2 4
89.0 1 8 3 1
88.5 1 3 3
88.0 6 2
87.5 2 7 13
87.0 3 3 1
86.5 12 7
86.0 4 8
85.5 9 6 1
85.0 3 6
84.5 1 4 7
84.0 1 9 10
83.5 1 3 4
83.0 5 6
82.5 7 7
82.0 9 7
81.5 1 8 8 1
81.0 4 8
80.5 15 10
80.0 1 8 3
79.5 1 8 10
79.0 1 3 5 8
78.5 3 3 6
78.0 2 11 13
77.5 13 13
77.0 2 11 16 1
76.5 2 3 5
76.0 7 6 1
75.5 2 11 7 1
75.0 1 7 8
74.5 9 8 1
74.0 1 6 5
73.5 1 8 6
73.0 5 6
72.5 7 6
72.0 1 10 6
71.5 8 8
71.0 3 9
70.5 1 2 7
70.0 6 5
69.5 7 4
69.0 2 5 5
68.5 1 6 4
68.0 1 6 2
67.5 10 6 1
67.0 8 9
66.5 1 1 10 4
66.0 8 6 1
65.5 2 3 1
65.0 1 8 5
64.5 5 6
64.0 4 6
63.5 3 5 2
63.0 3 6
62.5 4 7
62.0 1 3 5 1
61.5 4 4
61.0 1 7 3 1
60.5 5 4 1
60.0 1 6 6
59.5 2 3 4
59.0 1 7 5
58.5 2 4
58.0 5 6
57.5 2
57.0 4 1
56.5 3 2
56.0 3 1
55.5 3 2
55.0 1 4 1
54.5 3 2
54.0 1 4 1 1
53.5 1 1 1
53.0 1
52.5 3 2
52.0 3 1
51.5 4 2
51.0 1 2 2
50.5 2 1 1
50.0 1 2
49.5 1 1 2
49.0 1 1
48.0 1 1 4
47.5 2
47.0 2 2 1
46.5 1 2
46.0 1 3 1
45.5 2
45.0 1 3
44.5 1 1
44.0 1 1
43.5 2 1
43.0 1
42.0 2 1 2
41.0 1 3
40.5 1
40.0 1
39.0 2
38.5 1 1
38.0 1
37.5 1 1 1
37.0 1
36.5 1 1
36.0 3
35.0 2
34.5 2
30.0 2
24.0 1
12.0 1
American Mathematics Competitions
2006 AMC 10 A Results for Iowa
Analysis
Table of Item Difficulty for the 2006
American High School Mathematics Examination
Tabulation of responses for all Participants
Percent of Responses
ITEM A B C D E OMITS ?
____ _____ _____ _____ _____ _____ _____ _____
1 9.90* 0.02 0.06 0.02 0.00 0.01 0.00
2 1.21 0.19 1.86* 0.18 1.80 4.76 0.00
3 0.08 7.90* 0.12 0.06 1.74 0.10 0.00
4 2.25 0.19 0.06 0.12 6.78* 0.59 0.00
5 0.31 1.21 1.22 6.56* 0.19 0.51 0.00
6 0.12 7.42* 0.42 0.13 0.07 1.84 0.00
7 7.33* 0.11 0.23 0.36 0.19 1.76 0.01
8 1.15 0.26 0.39 0.14 1.42* 6.64 0.00
9 1.60 1.38 5.24* 0.26 0.28 1.22 0.01
10 0.26 0.18 0.56 2.18 0.69* 6.14 0.00
11 1.43 1.31 1.30* 0.64 0.69 4.64 0.01
12 0.76 0.27 4.48* 1.02 0.42 3.05 0.00
13 0.20 1.09 0.31 4.48* 0.16 3.76 0.00
14 1.81 3.26* 0.18 1.04 0.68 3.03 0.00
15 0.56 0.33 0.28 1.22* 0.62 6.98 0.00
16 0.22 0.14 0.30 0.30* 0.58 8.47 0.00
17 1.79* 0.40 0.14 0.40 0.26 7.01 0.00
18 2.03 0.12 2.68* 0.37 0.15 4.65 0.00
19 0.31 1.20 0.54* 0.34 0.22 7.37 0.00
20 0.49 1.04 0.40 0.29 0.52* 7.26 0.00
21 0.73 0.57 0.30 0.48 1.04* 6.88 0.00
22 0.10 0.76 3.05* 3.56 0.98 1.55 0.00
23 0.58 0.78* 0.14 0.33 0.42 7.76 0.00
24 0.70 0.23* 0.35 0.20 0.28 8.24 0.00
25 2.07 0.75 0.36* 0.31 0.26 6.24 0.00
(*) Correct Response
(?) Response the computer was unable to read due to incomplete
erasures or two answers marked in the same column
American Mathematics Competitions
2006 AMC 12 A Results for Iowa
SCORE DISTRIBUTION
GENDER
Score # Students Score # Students Score # Students
male female male female male female
150.0 125.0 100.0
149.5 124.5 99.5 11 4
149.0 124.0 99.0 1 1
148.5 123.5 98.5 6 8
148.0 123.0 1 98.0 4 1
147.5 122.5 97.5 2 2
147.0 122.0 2 97.0 7 10
146.5 121.5 1 96.5
146.0 121.0 96.0 8 6
145.5 120.5 95.5 6 2
145.0 120.0 95.0 8 8
144.5 119.5 4 94.5 8 9
144.0 1 119.0 94.0 4 2
143.5 118.5 6 3 93.5 11 3
143.0 118.0 93.0 3
142.5 117.5 92.5 15 11
142.0 117.0 2 92.0 4 6
141.5 116.5 91.5 4 6
141.0 116.0 4 1 91.0 9 14
140.5 115.5 90.5 7
140.0 115.0 1 3 90.0 18 5
139.5 2 114.5 1 89.5 4 1
139.0 114.0 89.0 12 12
138.5 113.5 5 2 88.5 8 2
138.0 113.0 1 88.0 5 9
137.5 112.5 7 2 87.5 8 7
137.0 112.0 87.0 3 6
136.5 111.5 3 2 86.5 15 11
136.0 111.0 1 86.0 7
135.5 110.5 85.5 7 10
135.0 110.0 6 1 85.0 16 8
134.5 1 109.5 84.5 10 13
134.0 109.0 4 1 84.0 20 11
133.5 108.5 83.5 4 6
133.0 108.0 2 83.0 25 19
132.5 107.5 3 1 82.5 4 6
132.0 107.0 82.0 12 21
131.5 106.5 4 6 81.5 11 8
131.0 106.0 81.0 7 13
130.5 105.5 10 5 80.5 23 12
130.0 105.0 3 1 80.0 3 9
129.5 104.5 1 1 79.5 14 12
129.0 1 104.0 7 2 79.0 7 4
128.5 103.5 78.5 16 24
128.0 103.0 7 2 78.0 15 8
127.5 102.5 77.5 8 8
127.0 102.0 6 2 77.0 21 21
126.5 2 1 101.5 7 76.5 8 10
126.0 101.0 4 1 76.0 21 19
125.5 100.5 19 3 75.5 11 9
American Mathematics Competitions
2006 AMC 12 A Results for Iowa
SCORE DISTRIBUTION
GENDER
Score # Students Score # Students Score # Students
male female male female male female
75.0 10 3 50.0 1 1 25.0
74.5 11 10 49.5 1 3 24.5
74.0 6 10 49.0 1 1 24.0 1
73.5 18 16 48.5 1 23.5
73.0 8 16 48.0 2 1 23.0
72.5 22 19 47.5 1 1 22.5
72.0 10 18 47.0 1 22.0
71.5 14 10 46.5 21.5
71.0 10 13 46.0 1 21.0
70.5 8 8 45.5 1 20.5
70.0 12 12 45.0 20.0
69.5 13 10 44.5 2 19.5
69.0 6 12 44.0 1 1 19.0
68.5 9 8 43.5 2 18.5
68.0 5 10 43.0 1 18.0
67.5 11 8 42.5 17.5
67.0 8 6 42.0 1 2 17.0
66.5 9 15 41.5 16.5
66.0 10 2 41.0 1 16.0
65.5 4 10 40.5 1 2 15.5
65.0 8 10 40.0 1 1 15.0
64.5 3 2 39.5 1 14.5
64.0 6 7 39.0 14.0
63.5 3 38.5 2 13.5
63.0 6 11 38.0 13.0
62.5 7 7 37.5 1 12.5
62.0 7 11 37.0 12.0
61.5 6 6 36.5 11.5
61.0 3 6 36.0 3 2 11.0
60.5 8 7 35.5 1 10.5
60.0 9 7 35.0 10.0
59.5 3 4 34.5 9.5
59.0 5 7 34.0 9.0
58.5 2 3 33.5 8.5
58.0 3 7 33.0 1 8.0
57.5 1 4 32.5 7.5
57.0 3 8 32.0 7.0
56.5 3 4 31.5 6.5
56.0 2 5 31.0 6.0
55.5 2 1 30.5 1 5.5
55.0 2 1 30.0 3 1 5.0
54.5 1 2 29.5 4.5
54.0 2 3 29.0 4.0
53.5 2 3 28.5 3.5
53.0 1 3 28.0 3.0
52.5 3 6 27.5 2.5
52.0 3 1 27.0 2.0
51.5 3 2 26.5 1.5
51.0 2 26.0 1.0
50.5 4 7 25.5 .5
0.0 0 0
American Mathematics Competitions
2006 AMC 12 A Results for Iowa
SCORE DISTRIBUTION
score -----------grade-----------
6 7 8 9 10 11 12 13 unknown
---------------------------
144.0 1
140.5 1
139.5 2
134.5 1
129.0 1
126.5 4
123.0 1
122.0 1 1
121.5 1
119.5 1 3
118.5 1 2 2 4
117.0 1 1
116.0 1 2 2
115.0 1 1 2
114.5 1
113.5 2 2 3
113.0 1
112.5 1 1 3 4
111.5 2 3
111.0 1
110.0 1 1 5
109.0 1 4
108.0 2
107.5 1 3
106.5 1 2 3 4
105.5 3 4 8
105.0 1 1 2
104.5 1 1
104.0 1 3 6
103.0 1 1 1 6
102.0 6 2
101.5 2 3 2
101.0 1 2 1 1
100.5 1 8 13
99.5 8 6 1
99.0 2
98.5 2 4 9
98.0 2 3
97.5 1 2 1 1
97.0 9 8
96.0 5 10
95.5 1 3 4
95.0 7 10
94.5 2 3 12
94.0 3 1 2
93.5 2 8 4
93.0 2 1
92.5 1 1 8 16
92.0 1 3 6
91.5 1 2 4 3
91.0 1 8 15
90.5 1 1 4 1
90.0 2 1 9 11
89.5 1 2 2
89.0 2 2 9 11
88.5 4 6
88.0 2 6 6
87.5 1 1 7 5 1
87.0 1 2 3 3
86.5 1 3 15 8 1
86.0 3 4
85.5 3 2 8 3 1
85.0 1 8 15
84.5 1 6 9 9 1
84.0 1 2 16 13
83.5 1 1 3 5
83.0 6 4 16 18 1
82.5 4 6 1
82.0 2 5 12 16
81.5 1 11 8
81.0 1 5 10 4
80.5 3 5 16 11 1
80.0 2 3 7 2
79.5 2 8 10 6
79.0 1 3 7
78.5 9 2 16 14 1
78.0 2 12 9
77.5 1 5 7 4
77.0 4 6 18 15 1
76.5 2 9 7
76.0 1 7 17 16
75.5 1 11 8
75.0 2 2 4 6
74.5 1 1 9 11 2
74.0 2 2 9 4
73.5 4 7 11 11 2
73.0 2 2 10 10
72.5 4 13 12 13 1
72.0 1 2 1 18 6
71.5 6 5 7 7
71.0 1 13 9
70.5 1 8 6 1
70.0 3 5 10 5 2
69.5 2 13 8
69.0 4 3 8 4
68.5 1 3 8 6
68.0 2 1 8 5
67.5 4 4 6 5 1
67.0 1 2 5 6
66.5 7 9 8
66.0 2 7 3
65.5 5 3 3 3
65.0 5 5 8 1
64.5 2 3
64.0 1 8 4
63.5 1 1 1
63.0 1 3 6 7
62.5 1 8 5
62.0 1 8 4 5
61.5 1 2 5 4
61.0 2 2 3 2 1
60.5 2 9 5
60.0 1 1 6 8
59.5 1 7
59.0 2 4 6 2
58.5 3 4
58.0 2 4 4
57.5 3 2
57.0 2 4 5
56.5 1 3 2 1
56.0 1 3 3
55.5 1 2
55.0 3 1
54.5 1 2
54.0 2 2 2 1
53.5 2 3
53.0 1 2 1
52.5 5 4
52.0 2 2
51.5 1 1 3
51.0 2 1
50.5 1 1 6 3
50.0 2
49.5 2 2
49.0 2
48.5 1
48.0 1 2
47.5 2
47.0 1
46.0 1
45.5 1
44.5 2
44.0 2
43.5 1 1 1
43.0 1
42.0 3
41.0 1
40.5 1 1 1
40.0 1 1
39.5 1
38.5 1 1
37.5 1
36.0 1 2 2
35.5 1
33.0 1
30.5 1
30.0 3 1
24.0 1
American Mathematics Competitions
2006 AMC 12 A Results for Iowa
Analysis
Table of Item Difficulty for the 2006
American High School Mathematics Examination
Tabulation of responses for all Participants
Percent of Responses
ITEM A B C D E OMITS ?
____ _____ _____ _____ _____ _____ _____ _____
1 9.91* 0.02 0.04 0.02 0.00 0.01 0.00
2 0.99 0.13 2.59* 0.10 1.36 4.82 0.01
3 0.04 8.08* 0.03 0.07 1.57 0.22 0.01
4 2.15 0.15 0.07 0.11 6.85* 0.66 0.00
5 0.18 1.13 1.14 6.87* 0.16 0.51 0.00
6 6.90* 0.09 0.31 0.29 0.24 2.18 0.00
7 0.71 3.76* 0.82 0.61 0.39 3.71 0.00
8 1.27 1.43 5.74* 0.12 0.16 1.28 0.00
9 7.70* 0.18 0.10 0.07 0.22 1.73 0.00
10 0.28 0.21 0.62 2.17 1.14* 5.58 0.00
11 1.25 0.83 1.58* 0.94 0.62 4.78 0.00
12 1.45 4.20* 0.18 0.88 0.45 2.83 0.00
13 0.58 0.10 0.20 0.11 3.80* 5.20 0.01
14 0.03 0.54 3.89* 2.88 0.71 1.94 0.01
15 2.14* 1.46 0.42 0.35 0.93 4.68 0.01
16 0.36 2.17* 0.08 0.18 0.48 6.73 0.00
17 0.36 0.32* 0.40 0.31 0.04 8.56 0.00
18 1.06 0.13 0.41 0.52 0.31* 7.56 0.00
19 0.12 0.13 0.19 0.11 0.21* 9.24 0.00
20 1.69 0.58 0.41* 0.34 0.10 6.88 0.00
21 0.07 0.09 0.42 0.11 0.19* 9.11 0.00
22 0.10 0.13 0.13 0.15* 0.11 9.37 0.00
23 0.06 0.14* 0.15 0.08 0.15 9.41 0.00
24 1.10 0.14 0.15 0.25* 0.13 8.23 0.00
25 0.12 0.17 0.20 0.12 0.12* 9.27 0.00
(*) Correct Response
(?) Response the computer was unable to read due to incomplete
erasures or two answers marked in the same column
American Mathematics Competitions
2006 AMC 10 B Results for Iowa
SCORE DISTRIBUTION
GENDER
Score # Students Score # Students Score # Students
male female male female male female
150.0 125.0 100.0 1
149.5 124.5 99.5 1 2
149.0 124.0 99.0
148.5 123.5 98.5
148.0 123.0 1 98.0 2
147.5 122.5 97.5 1
147.0 122.0 97.0
146.5 121.5 96.5 1
146.0 121.0 96.0 1 3
145.5 120.5 95.5
145.0 120.0 95.0
144.5 119.5 94.5
144.0 119.0 94.0 1
143.5 118.5 93.5 2
143.0 118.0 93.0
142.5 117.5 92.5 1 1
142.0 117.0 92.0 1
141.5 116.5 91.5 1
141.0 116.0 91.0 2 1
140.5 115.5 1 90.5 1
140.0 115.0 90.0 4 1
139.5 114.5 89.5 1
139.0 114.0 1 89.0 1 1
138.5 113.5 88.5 1
138.0 113.0 1 88.0 1
137.5 112.5 87.5
137.0 1 112.0 87.0 1
136.5 111.5 86.5 2 1
136.0 111.0 86.0 1 2
135.5 110.5 85.5
135.0 110.0 85.0 1 1
134.5 109.5 84.5 1
134.0 109.0 84.0 2
133.5 1 108.5 1 83.5 1 1
133.0 108.0 83.0 6
132.5 107.5 82.5 2 1
132.0 1 107.0 82.0 2 2
131.5 106.5 1 81.5 3 1
131.0 106.0 81.0 2 1
130.5 105.5 1 80.5 2 1
130.0 105.0 80.0 1 2
129.5 104.5 1 79.5 2 1
129.0 104.0 1 79.0 1 3
128.5 103.5 78.5 4
128.0 103.0 2 78.0 1 1
127.5 102.5 77.5
127.0 102.0 1 77.0 4 1
126.5 1 101.5 76.5 2 1
126.0 101.0 76.0 3 1
125.5 100.5 1 75.5 3
American Mathematics Competitions
2006 AMC 10 B Results for Iowa
SCORE DISTRIBUTION
GENDER
Score # Students Score # Students Score # Students
male female male female male female
75.0 2 2 50.0 1 3 25.0
74.5 2 49.5 1 3 24.5
74.0 49.0 1 2 24.0
73.5 1 3 48.5 1 3 23.5
73.0 1 48.0 4 5 23.0 1
72.5 5 1 47.5 1 2 22.5
72.0 5 3 47.0 3 3 22.0
71.5 2 1 46.5 1 21.5
71.0 6 5 46.0 1 21.0
70.5 1 1 45.5 1 20.5 3 1
70.0 3 6 45.0 2 2 20.0
69.5 1 2 44.5 8 1 19.5
69.0 1 1 44.0 19.0
68.5 2 5 43.5 2 18.5 1
68.0 6 3 43.0 4 18.0 1 2
67.5 2 2 42.5 1 17.5
67.0 4 1 42.0 2 4 17.0
66.5 1 41.5 1 16.5
66.0 2 41.0 2 2 16.0
65.5 5 2 40.5 15.5
65.0 1 40.0 15.0
64.5 4 39.5 1 14.5
64.0 2 5 39.0 2 1 14.0
63.5 4 1 38.5 1 13.5
63.0 1 2 38.0 1 1 13.0
62.5 4 1 37.5 2 12.5
62.0 4 5 37.0 2 4 12.0 1 1
61.5 2 3 36.5 1 11.5
61.0 1 1 36.0 7 4 11.0
60.5 5 35.5 1 1 10.5
60.0 3 4 35.0 1 10.0
59.5 3 4 34.5 3 9.5
59.0 6 2 34.0 1 9.0
58.5 3 33.5 1 8.5
58.0 4 3 33.0 8.0
57.5 4 4 32.5 2 1 7.5
57.0 1 2 32.0 2 7.0
56.5 4 31.5 6.5
56.0 2 2 31.0 2 6.0
55.5 4 3 30.5 5.5
55.0 2 1 30.0 2 1 5.0
54.5 4 1 29.5 4.5
54.0 6 1 29.0 2 4.0
53.5 3 9 28.5 1 3.5
53.0 1 2 28.0 1 3.0
52.5 2 3 27.5 1 2.5
52.0 1 4 27.0 2.0
51.5 2 2 26.5 1 1.5
51.0 2 4 26.0 1 1.0
50.5 3 2 25.5 .5
0.0 0 0
American Mathematics Competitions
2006 AMC 10 B Results for Iowa
SCORE DISTRIBUTION
score -----------grade-----------
6 7 8 9 10 unknown
---------------------------
137.0 1
133.5 1
132.0 1
126.5 1
123.0 1
116.0 1
115.5 1
114.0 1
113.0 1
108.5 1
106.5 1
105.5 1
104.5 1
104.0 1
103.0 2
102.0 1
100.5 1
100.0 1
99.5 1 2
98.0 2
97.5 1
96.5 1
96.0 2 2 1
94.0 1
93.5 2
92.5 1 1
92.0 1
91.5 1
91.0 1 2
90.5 1
90.0 2 4
89.5 1
89.0 1 1
88.5 1
88.0 1
87.0 1
86.5 1 2
86.0 3
85.5 1
85.0 1 1
84.5 1
84.0 2
83.5 2
83.0 3 3
82.5 1 2
82.0 1 3
81.5 4
81.0 1 1 1
80.5 3
80.0 1 2
79.5 1 3
79.0 4
78.5 1 3
78.0 1 1
77.0 2 3
76.5 2 1
76.0 2 3
75.5 2 1
75.0 1 2 1
74.5 2
73.5 2 2
73.0 1
72.5 2 5
72.0 3 5
71.5 1 1 1
71.0 1 5 6
70.5 2
70.0 3 6
69.5 3
69.0 2
68.5 2 5 1
68.0 1 1 7
67.5 4
67.0 1 4
66.5 1
66.0 3
65.5 3 4
65.0 1
64.5 3 1
64.0 1 3 3 1
63.5 1 2 2
63.0 1 2
62.5 1 1 3
62.0 1 2 6
61.5 2 3
61.0 1 1
60.5 3 2
60.0 3 4
59.5 1 1 5
59.0 1 8
58.5 2 1
58.0 1 2 4
57.5 5 4
57.0 2 1
56.5 1 3 1
56.0 1 4
55.5 2 5
55.0 3
54.5 1 1 1 2
54.0 5 2
53.5 3 9
53.0 2 1 2
52.5 1 1 3
52.0 2 3
51.5 2 2
51.0 1 2 3
50.5 3 3
50.0 1 3
49.5 1 3
49.0 1 2 1
48.5 4
48.0 1 7 1
47.5 2 1
47.0 3 3
46.5 1
46.0 1
45.5 1
45.0 2 2
44.5 1 2 6
44.0 1
43.5 2
43.0 1 3
42.5 1
42.0 2 4
41.5 1
41.0 1 3
39.5 1
39.0 3
38.5 1
38.0 2
37.5 1 1
37.0 1 5
36.5 1
36.0 5 7
35.5 2
35.0 1
34.5 2 1
34.0 1
33.5 1
32.5 3
32.0 1 1
31.0 2
30.5 1
30.0 6 1
29.0 1 1
28.5 1
28.0 1
27.5 1
26.5 2
26.0 1
23.0 1
20.5 3 1
18.5 1
18.0 3
12.0 3
American Mathematics Competitions
2006 AMC 10 B Results for Iowa
Analysis
Table of Item Difficulty for the 2006
American High School Mathematics Examination
Tabulation of responses for all Participants
Percent of Responses
ITEM A B C D E OMITS ?
____ _____ _____ _____ _____ _____ _____ _____
1 0.97 0.63 4.32* 2.48 0.61 0.99 0.00
2 3.79* 0.93 0.17 0.29 0.23 4.59 0.00
3 7.77* 0.23 0.08 1.37 0.36 0.19 0.00
4 1.70 2.65 0.48 1.83* 1.64 1.71 0.00
5 0.65 4.21* 2.15 0.51 0.25 2.23 0.00
6 0.50 0.17 3.39 2.32* 0.61 3.01 0.00
7 1.94* 1.31 1.01 1.22 0.57 3.94 0.00
8 1.56 0.78* 0.27 1.56 0.55 5.28 0.00
9 0.08 6.76* 0.27 0.19 1.83 0.88 0.00
10 2.11* 0.46 1.94 0.25 1.89 3.35 0.00
11 0.40 0.80 2.27* 0.46 0.23 5.85 0.00
12 0.34 0.46 0.32 0.55 3.07* 5.26 0.00
13 0.82 0.15 2.59 0.78 2.50* 3.14 0.02
14 0.29 0.32 0.50 0.63* 0.11 8.15 0.00
15 0.91 0.36 1.41* 0.44 0.44 6.44 0.00
16 2.67 0.50 2.15 0.69 1.22* 2.76 0.02
17 3.03 1.10 1.71 2.21* 0.10 1.85 0.00
18 0.59 0.46 0.67 0.38 0.76* 7.14 0.00
19 0.38* 0.61 0.40 0.34 0.21 8.06 0.00
20 0.38 0.42 0.63 0.53 0.80* 7.24 0.00
21 0.50 0.40 0.74* 2.04 0.97 5.33 0.02
22 0.42 0.91 2.44 0.80* 0.17 5.26 0.00
23 0.29 0.88 0.15 0.57* 0.25 7.87 0.00
24 0.25 0.93* 0.78 0.40 0.27 7.37 0.00
25 0.19 2.42* 0.27 1.81 0.67 4.65 0.00
(*) Correct Response
(?) Response the computer was unable to read due to incomplete
erasures or two answers marked in the same column
American Mathematics Competitions
2006 AMC 12 B Results for Iowa
SCORE DISTRIBUTION
GENDER
Score # Students Score # Students Score # Students
male female male female male female
150.0 125.0 100.0
149.5 124.5 99.5 5
149.0 124.0 1 99.0
148.5 123.5 98.5 9 2
148.0 123.0 1 98.0 1
147.5 122.5 97.5 3 1
147.0 122.0 1 97.0 2
146.5 121.5 1 96.5
146.0 121.0 96.0 6 3
145.5 120.5 95.5 2
145.0 120.0 95.0 17 2
144.5 119.5 2 1 94.5 2 1
144.0 119.0 94.0 1 1
143.5 118.5 1 93.5 4 3
143.0 118.0 1 93.0
142.5 117.5 92.5 4 6
142.0 117.0 2 1 92.0 1
141.5 116.5 91.5 8 4
141.0 116.0 1 91.0 7 4
140.5 115.5 1 90.5 3 2
140.0 115.0 1 1 90.0 9 3
139.5 114.5 89.5 1
139.0 114.0 1 89.0 14 8
138.5 113.5 2 88.5 1 2
138.0 113.0 88.0 5 4
137.5 112.5 4 1 87.5 4 3
137.0 112.0 2 87.0 2 2
136.5 111.5 6 1 86.5 19 3
136.0 111.0 86.0 1
135.5 110.5 85.5 6 8
135.0 110.0 2 85.0 3 2
134.5 109.5 84.5 9 4
134.0 109.0 1 84.0 14 4
133.5 108.5 83.5 3
133.0 108.0 2 1 83.0 13 4
132.5 107.5 82.5 2
132.0 107.0 82.0 3 12
131.5 106.5 4 81.5 1 1
131.0 106.0 81.0 3 2
130.5 105.5 4 2 80.5 3 4
130.0 1 105.0 80.0 3 2
129.5 104.5 2 2 79.5 5 12
129.0 1 104.0 1 1 79.0 6 2
128.5 103.5 78.5 1 10
128.0 103.0 2 2 78.0 5 6
127.5 1 102.5 77.5 5 2
127.0 102.0 8 3 77.0 3 7
126.5 1 101.5 1 76.5 4
126.0 101.0 1 3 76.0 5 8
125.5 2 100.5 1 75.5 1 2
American Mathematics Competitions
2006 AMC 12 B Results for Iowa
SCORE DISTRIBUTION
GENDER
Score # Students Score # Students Score # Students
male female male female male female
75.0 5 11 50.0 1 2 25.0
74.5 3 49.5 2 24.5
74.0 4 4 49.0 24.0
73.5 3 1 48.5 2 23.5
73.0 4 2 48.0 1 1 23.0
72.5 5 2 47.5 22.5
72.0 4 47.0 1 22.0
71.5 3 4 46.5 1 21.5
71.0 7 5 46.0 2 21.0
70.5 2 4 45.5 20.5
70.0 2 6 45.0 20.0
69.5 1 44.5 19.5
69.0 5 3 44.0 19.0
68.5 2 3 43.5 18.5
68.0 2 3 43.0 18.0
67.5 4 2 42.5 17.5
67.0 1 2 42.0 1 1 17.0
66.5 1 5 41.5 16.5
66.0 2 1 41.0 16.0
65.5 4 40.5 15.5
65.0 4 4 40.0 15.0
64.5 1 39.5 14.5
64.0 2 1 39.0 1 14.0
63.5 2 4 38.5 13.5
63.0 4 38.0 1 13.0
62.5 5 37.5 2 12.5
62.0 3 37.0 12.0
61.5 1 3 36.5 11.5
61.0 1 2 36.0 3 11.0
60.5 4 3 35.5 1 10.5
60.0 2 35.0 10.0
59.5 1 3 34.5 9.5
59.0 2 3 34.0 9.0
58.5 2 2 33.5 8.5
58.0 2 1 33.0 1 8.0
57.5 1 2 32.5 7.5
57.0 2 1 32.0 7.0
56.5 2 31.5 6.5
56.0 1 1 31.0 6.0
55.5 1 1 30.5 5.5
55.0 1 30.0 2 5.0
54.5 29.5 1 4.5
54.0 3 3 29.0 4.0
53.5 2 28.5 3.5
53.0 2 1 28.0 3.0
52.5 1 1 27.5 2.5
52.0 1 1 27.0 2.0
51.5 1 26.5 1.5
51.0 1 1 26.0 1.0
50.5 25.5 .5
0.0 0 0
American Mathematics Competitions
2006 AMC 12 B Results for Iowa
SCORE DISTRIBUTION
score -----------grade-----------
6 7 8 9 10 11 12 13 unknown
---------------------------
130.0 1
129.0 1
127.5 1
126.5 1
125.5 1 1
124.0 1
123.0 1
122.0 1
121.5 1
119.5 1 2
118.5 1
118.0 1
117.0 1 1 1
116.0 1
115.5 1
115.0 2
114.0 1
113.5 2
112.5 2 3
112.0 1 1
111.5 1 6
110.0 1 1
109.0 1
108.0 1 2
106.5 1 3
105.5 1 4 1 1
104.5 1 3
104.0 2
103.0 1 3
102.0 1 4 7
101.5 1
101.0 1 3
100.5 1
99.5 3 2
98.5 1 1 2 7
98.0 1
97.5 3 1
97.0 1 1 1
96.0 1 1 4 3
95.5 1 1
95.0 4 9 6
94.5 2 1
94.0 1 1
93.5 2 1 4
92.5 1 5 4
92.0 1
91.5 3 9
91.0 6 5
90.5 2 3 1
90.0 2 7 3
89.5 1
89.0 1 3 10 8
88.5 1 2
88.0 1 6 3 1
87.5 2 3 2
87.0 4
86.5 1 3 11 8
86.0 1
85.5 3 6 5
85.0 1 2 2
84.5 1 8 4
84.0 1 2 8 7
83.5 1 1 1
83.0 3 7 6 1
82.5 2
82.0 1 6 9 1
81.5 2
81.0 3 2
80.5 2 3 2
80.0 5
79.5 1 11 6
79.0 3 3 2
78.5 5 6
78.0 3 6 3
77.5 1 4 2 1
77.0 1 2 5 2
76.5 1 2 2
76.0 2 4 4 3 1
75.5 3
75.0 1 1 9 4 1
74.5 1 2
74.0 5 3
73.5 1 1 1 1
73.0 1 3 2
72.5 2 4 1
72.0 2 2
71.5 4 3
71.0 2 6 3 1
70.5 1 4 1
70.0 1 3 4
69.5 1
69.0 1 5 2
68.5 1 2 2
68.0 1 4
67.5 1 5
67.0 2 1
66.5 2 4 1
66.0 3
65.5 2 2
65.0 1 7
64.5 1
64.0 1 2
63.5 3 3
63.0 1 1 1 1
62.5 4 1
62.0 2 1
61.5 3 1
61.0 3
60.5 1 3 3
60.0 1 1
59.5 3 1
59.0 1 4
58.5 1 1 2
58.0 1 1 1
57.5 1 1 1
57.0 2 1
56.5 1 1
56.0 2
55.5 2
55.0 1
54.5 1
54.0 3 3
53.5 2
53.0 1 2
52.5 2
52.0 1 1
51.5 1
51.0 2
50.0 1 2
49.5 1 1
48.5 2
48.0 2
47.0 1
46.5 1
46.0 1 1
42.0 1 1
39.0 1
38.0 1
37.5 2
36.0 2 1
35.5 1
33.0 1
30.0 2 1
29.5 1
American Mathematics Competitions
2006 AMC 12 B Results for Iowa
Analysis
Table of Item Difficulty for the 2006
American High School Mathematics Examination
Tabulation of responses for all Participants
Percent of Responses
ITEM A B C D E OMITS ?
____ _____ _____ _____ _____ _____ _____ _____
1 0.45 0.39 6.89* 1.41 0.39 0.47 0.00
2 6.19* 0.60 0.03 0.17 0.34 2.68 0.00
3 8.31* 0.17 0.03 1.01 0.35 0.14 0.00
4 9.08* 0.34 0.15 0.22 0.08 0.13 0.00
5 6.65* 0.84 0.29 0.25 0.14 1.83 0.00
6 0.07 8.65* 0.10 0.08 0.49 0.61 0.00
7 0.31 8.03* 0.57 0.53 0.13 0.43 0.00
8 0.17 0.38 0.22 0.35 5.80* 3.09 0.00
9 0.47 4.01* 0.28 0.75 0.57 3.91 0.00
10 2.50* 0.43 1.42 0.13 2.35 3.17 0.00
11 0.88 0.06 1.16 0.91 4.09* 2.89 0.01
12 0.59 0.52 0.27 0.63* 0.56 7.44 0.00
13 0.50 0.38 1.89* 0.10 0.34 6.80 0.00
14 0.24 0.54 2.00 1.52* 0.13 5.57 0.00
15 0.18 1.40* 0.87 0.36 0.13 7.07 0.00
16 0.11 0.21 0.70* 0.22 0.11 8.65 0.00
17 0.32 0.10 1.09* 1.93 0.49 6.08 0.00
18 0.46 0.66* 1.22 0.32 0.15 7.19 0.00
19 0.14 2.22* 0.14 1.54 0.29 5.67 0.00
20 0.17 0.17 0.28* 0.11 0.50 8.77 0.00
21 0.25 0.11 0.17* 0.08 0.11 9.27 0.00
22 0.13 0.31* 0.24 0.11 0.10 9.12 0.00
23 0.15 0.20 0.43 0.14 0.22* 8.85 0.00
24 0.17 0.13 0.10* 0.13 0.10 9.39 0.00
25 0.14 0.20* 0.15 0.32 0.10 9.09 0.00
(*) Correct Response
(?) Response the computer was unable to read due to incomplete
erasures or two answers marked in the same column