IRT parameters for the data analysis, statistics, and probability scale, by block and item, grade 8 mathematics state assessment (accommodations not permitted [R2]): 2000
Block |
Item |
NAEP ID |
aj |
bj |
cj |
dj1 |
dj2 |
dj3 |
dj4 |
M3 |
5 |
M093401 |
0.97 |
0.70 |
0.22 |
† |
† |
† |
† |
M4 |
3 |
M017601 |
0.55 |
-1.28 |
0.33 |
† |
† |
† |
† |
7 |
M018001 |
0.81 |
-0.20 |
0.25 |
† |
† |
† |
† |
17 |
M019001 |
0.73 |
0.59 |
0.11 |
† |
† |
† |
† |
21 |
M019601 |
0.61 |
1.27 |
0.09 |
† |
† |
† |
† |
M6 |
11A |
M020901 |
0.66 |
0.20 |
0.00 |
† |
† |
† |
† |
12A |
M021001 |
0.91 |
-0.05 |
0.00 |
† |
† |
† |
† |
15,16 |
M0213CL |
0.59 |
-0.42 |
0.00 |
-0.37 |
0.37 |
† |
† |
2A |
M019801 |
1.17 |
-0.76 |
0.00 |
† |
† |
† |
† |
3A |
M019901 |
0.66 |
-1.75 |
0.00 |
† |
† |
† |
† |
M7 |
8 |
M068007 |
0.55 |
0.07 |
0.05 |
† |
† |
† |
† |
10A |
M068201 |
0.32 |
1.59 |
0.00 |
† |
† |
† |
† |
5A |
M068003 |
0.56 |
-0.39 |
0.00 |
-2.02 |
2.02 |
† |
† |
6A |
M068005 |
0.50 |
-0.56 |
0.00 |
-1.37 |
1.37 |
† |
† |
7A |
M068006 |
0.44 |
0.51 |
0.00 |
-1.60 |
1.60 |
† |
† |
M8 |
6A |
M012731 |
0.67 |
1.61 |
0.19 |
† |
† |
† |
† |
7A |
M012831 |
1.08 |
0.34 |
0.11 |
† |
† |
† |
† |
M9 |
4 |
M052601 |
0.51 |
0.44 |
0.09 |
† |
† |
† |
† |
M10 |
4 |
M085801 |
0.77 |
0.06 |
0.21 |
† |
† |
† |
† |
3A |
M085701 |
0.50 |
-0.36 |
0.00 |
† |
† |
† |
† |
5A |
M085901 |
0.48 |
-0.04 |
0.00 |
1.04 |
-1.04 |
† |
† |
M11 |
2 |
M046101 |
0.76 |
-2.09 |
0.24 |
† |
† |
† |
† |
3 |
M046201 |
1.10 |
-0.69 |
0.20 |
† |
† |
† |
† |
5 |
M046401 |
0.88 |
-0.95 |
0.24 |
† |
† |
† |
† |
8 |
M046701 |
1.21 |
-0.06 |
0.26 |
† |
† |
† |
† |
19A |
M048001 |
1.71 |
1.33 |
0.13 |
† |
† |
† |
† |
M12 |
4A |
M092401 |
0.59 |
1.59 |
0.00 |
2.04 |
-2.04 |
† |
† |
M13 |
7 |
M051801 |
1.51 |
1.53 |
0.26 |
† |
† |
† |
† |
9 |
M052001 |
0.99 |
1.27 |
0.19 |
† |
† |
† |
† |
M15 |
7A |
M075801 |
0.77 |
1.10 |
0.00 |
0.24 |
-0.24 |
† |
† |
Last updated 14 July 2008 (KL)
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