IRT parameters for the earth science scale, by block and item, grade 4 science state assessment (accommodations permitted [R3]): 2000
Block |
Item |
NAEP ID |
aj |
bj |
cj |
dj1 |
dj2 |
dj3 |
S7 |
1 |
K031401 |
0.31 |
3.12 |
0.00 |
2.48 |
-0.12 |
-2.37 |
2 |
K031402 |
0.67 |
1.12 |
0.00 |
† |
† |
† |
3 |
K031403 |
0.77 |
-0.37 |
0.00 |
0.56 |
-0.56 |
† |
4 |
K031404 |
1.04 |
-0.28 |
0.00 |
† |
† |
† |
5 |
K031405 |
1.46 |
1.88 |
0.19 |
† |
† |
† |
6 |
K031406 |
0.86 |
0.71 |
0.46 |
† |
† |
† |
7 |
K031407 |
0.40 |
-0.86 |
0.00 |
† |
† |
† |
8 |
K031408 |
0.65 |
0.11 |
0.00 |
0.54 |
-0.54 |
† |
9 |
K031409 |
0.89 |
0.18 |
0.00 |
† |
† |
† |
10 |
K031410 |
0.42 |
0.68 |
0.00 |
0.68 |
-0.68 |
† |
S10 |
2 |
K031801 |
0.84 |
0.83 |
0.16 |
† |
† |
† |
3 |
K031901 |
0.55 |
-0.17 |
0.00 |
0.71 |
-0.71 |
† |
6 |
K032201 |
1.06 |
0.35 |
0.14 |
† |
† |
† |
7 |
K032301 |
0.90 |
1.48 |
0.16 |
† |
† |
† |
8 |
K032401 |
1.14 |
1.18 |
0.19 |
† |
† |
† |
S11 |
2 |
K099501 |
0.36 |
1.77 |
0.00 |
1.53 |
-1.53 |
† |
4 |
K090001 |
1.43 |
1.55 |
0.18 |
† |
† |
† |
6 |
K099301 |
0.80 |
-0.10 |
0.26 |
† |
† |
† |
9 |
K098701 |
1.25 |
0.48 |
0.15 |
† |
† |
† |
13 |
K099801 |
0.78 |
0.08 |
0.30 |
† |
† |
† |
14 |
K099901 |
0.80 |
2.10 |
0.28 |
† |
† |
† |
S12 |
1 |
K033601 |
0.59 |
-1.75 |
0.23 |
† |
† |
† |
2 |
K033701 |
0.62 |
-0.89 |
0.15 |
† |
† |
† |
3 |
K033801 |
0.88 |
-0.13 |
0.18 |
† |
† |
† |
6 |
K2341CL |
0.35 |
0.55 |
0.00 |
-0.68 |
1.63 |
-0.95 |
9 |
K034401 |
0.48 |
0.34 |
0.00 |
0.54 |
-0.54 |
† |
10 |
K034501 |
0.65 |
1.23 |
0.00 |
1.81 |
-1.48 |
-0.33 |
11 |
K034502 |
0.49 |
1.56 |
0.00 |
-0.40 |
0.40 |
† |
S13 |
7 |
K035001 |
1.04 |
-0.20 |
0.34 |
† |
† |
† |
8 |
K035101 |
0.62 |
1.22 |
0.15 |
† |
† |
† |
9 |
K034102 |
0.73 |
-1.34 |
0.16 |
† |
† |
† |
10 |
K035201 |
0.92 |
0.87 |
0.00 |
† |
† |
† |
11 |
K035301 |
0.65 |
0.72 |
0.00 |
2.43 |
-0.68 |
-1.75 |
S14 |
7 |
K036001 |
0.98 |
2.09 |
0.25 |
† |
† |
† |
8 |
K036101 |
0.67 |
1.33 |
0.00 |
1.28 |
-1.28 |
† |
S15 |
5 |
K037401 |
0.97 |
2.46 |
0.00 |
0.27 |
-0.27 |
† |
7 |
K037601 |
0.77 |
1.66 |
0.00 |
0.45 |
-0.45 |
† |
S20 |
2 |
K094201 |
0.28 |
-1.59 |
0.21 |
† |
† |
† |
3 |
K099401 |
0.76 |
0.70 |
0.42 |
† |
† |
† |
8 |
K094701 |
1.45 |
1.18 |
0.29 |
† |
† |
† |
12 |
K099601 |
0.43 |
0.88 |
0.00 |
0.81 |
-0.81 |
† |
13 |
K094301 |
0.60 |
2.09 |
0.26 |
† |
† |
† |
S21 |
2 |
K039601 |
0.78 |
-0.88 |
0.13 |
† |
† |
† |
4 |
K039801 |
0.49 |
-1.27 |
0.00 |
1.26 |
-1.26 |
† |
10 |
K040401 |
0.40 |
2.12 |
0.00 |
-2.90 |
3.17 |
-0.26 |
11 |
K040501 |
0.67 |
0.85 |
0.00 |
† |
† |
† |
Last updated 15 July 2008 (KL)
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