IRT parameters for the measurement scale, by block and item, grade 8 mathematics national main assessment (accommodations permitted [R3]): 2000
Block |
Item |
NAEP ID |
aj |
bj |
cj |
dj1 |
dj2 |
dj3 |
dj4 |
M3 |
3 |
M093201 |
0.69 |
1.54 |
0.25 |
† |
† |
† |
† |
7A |
M093601 |
0.82 |
1.53 |
0.00 |
1.28 |
-1.28 |
† |
† |
M4 |
2 |
M017501 |
0.34 |
-2.98 |
0.19 |
† |
† |
† |
† |
8 |
M018101 |
0.58 |
-0.45 |
0.17 |
† |
† |
† |
† |
18 |
M019101 |
1.38 |
1.56 |
0.17 |
† |
† |
† |
† |
19 |
M019201 |
1.40 |
1.55 |
0.14 |
† |
† |
† |
† |
M6 |
7A |
M020301 |
0.99 |
-0.44 |
0.00 |
† |
† |
† |
† |
M7 |
9A |
M068008 |
0.44 |
1.98 |
0.00 |
0.31 |
-0.31 |
† |
† |
M8 |
2A |
M012331 |
0.70 |
-1.59 |
0.21 |
† |
† |
† |
† |
14A |
M013331 |
0.98 |
-1.24 |
0.20 |
† |
† |
† |
† |
M9 |
1 |
M052301 |
1.67 |
0.64 |
0.21 |
† |
† |
† |
† |
M10 |
1 |
M085501 |
1.44 |
0.82 |
0.17 |
† |
† |
† |
† |
2 |
M085601 |
0.93 |
-0.04 |
0.21 |
† |
† |
† |
† |
M11 |
12 |
M047101 |
1.11 |
0.23 |
0.15 |
† |
† |
† |
† |
13 |
M047201 |
0.74 |
-1.00 |
0.16 |
† |
† |
† |
† |
18A |
M047901 |
1.10 |
1.52 |
0.00 |
† |
† |
† |
† |
M13 |
2A |
M051301 |
0.37 |
-2.72 |
0.00 |
† |
† |
† |
† |
11A |
M052201 |
0.78 |
0.92 |
0.00 |
0.71 |
-0.38 |
-0.33 |
† |
M14 |
1A |
M072801 |
0.64 |
0.36 |
0.30 |
† |
† |
† |
† |
6A |
M073301 |
1.09 |
1.29 |
0.23 |
† |
† |
† |
† |
M15 |
1A |
M075201 |
0.62 |
-0.48 |
0.23 |
† |
† |
† |
† |
3A |
M075401 |
0.51 |
0.22 |
0.00 |
1.09 |
-1.09 |
† |
† |
5A |
M075601 |
0.53 |
0.26 |
0.00 |
-0.99 |
0.99 |
† |
† |
9A |
M076001 |
0.49 |
1.43 |
0.00 |
-1.77 |
0.82 |
0.95 |
† |
Last updated 14 July 2008 (KL)
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