IRT parameters for the earth science scale, by block and item, grade 4 science national main assessment (accommodations permitted [R3]): 2000
Block |
Item |
NAEP ID |
aj |
bj |
cj |
dj1 |
dj2 |
dj3 |
S7 |
1 |
K031401 |
0.25 |
3.90 |
0.00 |
3.20 |
0.23 |
-3.43 |
2 |
K031402 |
0.72 |
1.06 |
0.00 |
† |
† |
† |
3 |
K031403 |
0.69 |
-0.45 |
0.00 |
0.62 |
-0.62 |
† |
4 |
K031404 |
1.02 |
-0.36 |
0.00 |
† |
† |
† |
5 |
K031405 |
1.19 |
1.96 |
0.18 |
† |
† |
† |
6 |
K031406 |
0.82 |
0.59 |
0.46 |
† |
† |
† |
7 |
K031407 |
0.41 |
-1.09 |
0.00 |
† |
† |
† |
8 |
K031408 |
0.66 |
0.01 |
0.00 |
0.62 |
-0.62 |
† |
9 |
K031409 |
0.89 |
0.12 |
0.00 |
† |
† |
† |
10 |
K031410 |
0.38 |
0.76 |
0.00 |
0.73 |
-0.73 |
† |
S10 |
2 |
K031801 |
0.83 |
0.81 |
0.20 |
† |
† |
† |
3 |
K031901 |
0.53 |
-0.15 |
0.00 |
0.61 |
-0.61 |
† |
6 |
K032201 |
1.01 |
0.36 |
0.14 |
† |
† |
† |
7 |
K032301 |
1.05 |
1.51 |
0.18 |
† |
† |
† |
8 |
K032401 |
1.13 |
1.16 |
0.16 |
† |
† |
† |
S11 |
2 |
K099501 |
0.30 |
2.02 |
0.00 |
1.77 |
-1.77 |
† |
4 |
K090001 |
1.77 |
1.52 |
0.18 |
† |
† |
† |
6 |
K099301 |
0.70 |
-0.59 |
0.21 |
† |
† |
† |
9 |
K098701 |
1.29 |
0.47 |
0.18 |
† |
† |
† |
13 |
K099801 |
0.50 |
-0.38 |
0.23 |
† |
† |
† |
14 |
K099901 |
0.46 |
2.20 |
0.21 |
† |
† |
† |
S12 |
1 |
K033601 |
0.54 |
-1.92 |
0.26 |
† |
† |
† |
2 |
K033701 |
0.55 |
-0.99 |
0.20 |
† |
† |
† |
3 |
K033801 |
1.02 |
-0.13 |
0.23 |
† |
† |
† |
9 |
K034401 |
0.45 |
0.20 |
0.00 |
0.60 |
-0.60 |
† |
10 |
K034501 |
0.66 |
1.00 |
0.00 |
1.83 |
-1.40 |
-0.43 |
11 |
K034502 |
0.42 |
1.57 |
0.00 |
-0.88 |
0.88 |
† |
6 |
K2341CL |
0.42 |
0.46 |
0.00 |
-0.37 |
1.15 |
-0.79 |
S13 |
7 |
K035001 |
0.64 |
-0.60 |
0.26 |
† |
† |
† |
8 |
K035101 |
0.66 |
1.16 |
0.18 |
† |
† |
† |
9 |
K034102 |
0.70 |
-1.53 |
0.19 |
† |
† |
† |
10 |
K035201 |
0.87 |
0.97 |
0.00 |
† |
† |
† |
11 |
K035301 |
0.66 |
0.71 |
0.00 |
2.37 |
-0.78 |
-1.59 |
S14 |
7 |
K036001 |
0.57 |
2.57 |
0.25 |
† |
† |
† |
8 |
K036101 |
0.72 |
1.31 |
0.00 |
1.14 |
-1.14 |
† |
S15 |
5 |
K037401 |
0.82 |
2.59 |
0.00 |
-0.06 |
0.06 |
† |
7 |
K037601 |
0.66 |
1.80 |
0.00 |
0.57 |
-0.57 |
† |
S20 |
2 |
K094201 |
0.28 |
-1.34 |
0.24 |
† |
† |
† |
3 |
K099401 |
0.37 |
-0.22 |
0.23 |
† |
† |
† |
8 |
K094701 |
0.67 |
1.19 |
0.22 |
† |
† |
† |
12 |
K099601 |
0.48 |
0.76 |
0.00 |
0.81 |
-0.81 |
† |
13 |
K094301 |
0.51 |
1.83 |
0.20 |
† |
† |
† |
S21 |
2 |
K039601 |
0.80 |
-0.99 |
0.17 |
† |
† |
† |
4 |
K039801 |
0.48 |
-1.33 |
0.00 |
1.25 |
-1.25 |
† |
10 |
K040401 |
0.43 |
1.89 |
0.00 |
-2.46 |
2.43 |
0.03 |
11 |
K040501 |
0.75 |
0.70 |
0.00 |
† |
† |
† |
Last updated 15 July 2008 (KL)
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