Table of Contents | Search Technical Documentation | References
Block | Item | NAEP ID | aj | bj | cj | dj1 | dj2 | dj3 | dj4 | dj5 |
---|---|---|---|---|---|---|---|---|---|---|
R1 | 1 | R059601 | 0.50 | 0.18 | 0.12 | † | † | † | † | † |
2 | R059602 | 0.55 | -0.88 | 0.20 | † | † | † | † | † | |
3 | R059603 | 0.92 | -0.87 | 0.23 | † | † | † | † | † | |
4 | R059604 | 0.78 | -1.29 | † | † | † | † | † | † | |
5 | R059610 | 0.43 | -0.15 | † | 0.16 | 0.30 | -0.46 | † | † | |
6 | R059606 | 0.72 | -0.61 | † | 0.56 | -0.56 | † | † | † | |
7 | R059605 | 0.80 | 0.53 | † | 0.80 | -0.80 | † | † | † | |
8 | R059608 | 0.65 | 0.29 | 0.19 | † | † | † | † | † | |
9 | R059609 | 0.74 | -1.72 | 0.15 | † | † | † | † | † | |
10 | R059607 | 0.62 | -0.29 | † | 0.77 | -0.77 | † | † | † | |
R2 | 1 | R069801 | 0.37 | -1.31 | † | 3.21 | -3.21 | † | † | † |
2 | R069802 | 0.78 | -0.07 | 0.13 | † | † | † | † | † | |
3 | R069803 | 1.23 | -0.83 | 0.31 | † | † | † | † | † | |
4 | R069804 | 0.82 | 0.31 | † | 1.19 | -1.19 | † | † | † | |
5 | R069805 | 0.78 | 0.07 | 0.38 | † | † | † | † | † | |
6 | R069806 | 0.60 | -0.20 | † | 1.74 | 0.07 | -1.81 | † | † | |
7 | R069807 | 1.05 | -0.56 | 0.22 | † | † | † | † | † | |
8 | R069808 | 0.77 | -0.85 | 0.24 | † | † | † | † | † | |
9 | R069809 | 0.82 | -0.85 | 0.19 | † | † | † | † | † | |
10 | R069810 | 0.54 | -0.05 | † | 0.05 | -0.05 | † | † | † | |
R5 | 1 | R079501 | 1.49 | -0.98 | 0.18 | † | † | † | † | † |
2 | R079502 | 0.53 | -2.31 | 0.13 | † | † | † | † | † | |
3 | R079504 | 0.44 | -0.34 | † | -0.62 | 0.62 | † | † | † | |
4 | R079505 | 0.82 | -1.21 | 0.07 | † | † | † | † | † | |
5 | R079506 | 0.50 | -1.11 | 0.14 | † | † | † | † | † | |
6 | R079507 | 0.49 | -0.49 | † | 0.59 | -0.36 | -0.24 | † | † | |
7 | R079508 | 0.89 | -1.21 | † | † | † | † | † | † | |
8 | R079509 | 0.87 | -0.90 | 0.22 | † | † | † | † | † | |
9 | R079510 | 0.57 | -0.44 | † | 0.76 | -0.76 | † | † | † | |
10 | R079511 | 1.16 | -0.97 | 0.10 | † | † | † | † | † | |
R6 | 1 | R058601 | 0.86 | -0.86 | 0.09 | † | † | † | † | † |
2 | R058602 | 0.57 | -0.27 | † | 0.94 | -0.94 | † | † | † | |
3 | R058603 | 1.28 | -0.82 | 0.38 | † | † | † | † | † | |
4 | R058604 | 1.36 | -0.79 | 0.23 | † | † | † | † | † | |
5 | R058605 | 0.64 | -0.71 | 0.13 | † | † | † | † | † | |
6 | R058606 | 0.64 | -0.12 | † | 0.36 | -0.36 | † | † | † | |
7 | R058607 | 1.39 | -0.74 | 0.31 | † | † | † | † | † | |
8 | R058608 | 0.72 | 0.21 | † | 1.33 | -0.40 | -0.93 | † | † | |
9 | R058609 | 0.84 | -0.38 | 0.09 | † | † | † | † | † | |
10 | R058610 | 0.83 | -1.38 | 0.20 | † | † | † | † | † | |
R9 | 1 | R060501 | 0.41 | -0.83 | 0.14 | † | † | † | † | † |
2 | R060502 | 1.40 | -1.78 | 0.14 | † | † | † | † | † | |
3 | R060503 | 0.69 | -0.26 | † | 0.56 | -0.56 | † | † | † | |
4 | R060504 | 0.94 | -0.56 | 0.21 | † | † | † | † | † | |
5 | R060505 | 0.58 | -0.26 | † | 1.02 | -0.79 | -0.23 | † | † | |
6 | R060507 | 0.68 | 0.14 | † | 1.35 | -1.35 | † | † | † | |
7 | R060508 | 0.67 | 0.93 | † | 0.71 | -0.71 | † | † | † | |
8 | R060509 | 0.55 | -0.21 | † | 0.20 | -0.20 | † | † | † | |
9 | R060510 | 0.82 | -0.72 | 0.49 | † | † | † | † | † | |
10 | R060511 | 0.53 | -1.60 | 0.18 | † | † | † | † | † | |
R10 | 1 | R060601 | 0.75 | -0.32 | 0.14 | † | † | † | † | † |
2 | R060602 | 0.57 | -1.35 | 0.13 | † | † | † | † | † | |
3 | R060607 | 0.75 | -0.65 | † | 1.46 | -1.46 | † | † | † | |
4 | R060604 | 0.58 | -1.51 | 0.15 | † | † | † | † | † | |
5 | R060605 | 0.76 | -0.36 | † | 1.55 | -1.55 | † | † | † | |
6 | R060606 | 0.43 | 1.60 | † | 2.05 | -1.59 | -0.46 | † | † | |
7 | R060610 | 0.87 | -0.27 | 0.27 | † | † | † | † | † | |
8 | R060608 | 0.60 | -0.07 | † | 0.32 | -0.32 | † | † | † | |
9 | R060609 | 1.13 | -1.07 | 0.14 | † | † | † | † | † | |
10 | R060603 | 0.73 | -0.02 | † | 0.60 | -0.60 | † | † | † | |
† Not applicable; c parameters are not estimated for the two-parameter logistic model or generalized partial credit models, and d parameters are not estimated for two-parameter or three-parameter logistic models. NOTE: For item j, aj represents the discriminatory power of the item, bj represents a location parameter related to item difficulty, cj represents the guessing parameter, and dji represents the category threshold parameter for category i. The c parameter value is assumed to be exactly zero and is not estimated for items scaled with the two-parameter logistic model. For item j, dji may not sum to zero because of rounding. SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2017 Reading Assessment. |