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NAEP Analysis and Scaling → Estimation of NAEP Score Scales → NAEP Assessment IRT Parameters → U.S. History Assessment IRT Parameters → IRT Parameters for Items in the Technology Subscale, Grade 8 U.S. History National Assessment, by Block and Item: 2022
NAEP Technical DocumentationIRT Parameters for Items in the Technology Subscale, Grade 8 U.S. History National Assessment, by Block and Item: 2022
| Item | NAEP ID | a | b | c | d | d | d |
|---|---|---|---|---|---|---|---|
| Not applicable; c parameters are not estimated for the two-parameter logistic or generalized partial credit models, and d parameters are not estimated for the two-parameter or three-parameter logistic models. | |||||||
| For item j, a represents the discriminatory power of the item, b represents a location parameter related to item difficulty, c represents the guessing parameter, and d 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, d may not sum to zero because of rounding. | |||||||
| U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2022 U.S. History Assessment. | |||||||
| Block H1 | |||||||
| 5 | H035901 | 0.382 | -0.433 | -0.191 | 0.191 | ||
| 6 | H035902 | 0.684 | 1.004 | -0.288 | 0.288 | ||
| 11 | H036301 | 0.944 | -0.700 | 0.234 | |||
| 12 | H036401 | 0.854 | 0.767 | 0.263 | |||
| 13 | H036402 | 0.546 | 1.146 | 0.640 | 0.501 | -1.140 | |
| 17 | H072901 | 1.175 | 0.829 | 0.163 | |||
| 18 | H036701 | 0.878 | -0.752 | 0.235 | |||
| 21 | H036801 | 0.360 | 0.978 | 0.215 | |||
| Block H2 | |||||||
| 11 | H059501 | 0.857 | 0.936 | 0.292 | |||
| 12 | H059601 | 0.941 | -0.091 | 0.239 | |||
| 13 | H059701 | 0.951 | 1.132 | -0.102 | 0.102 | ||
| 15 | H059901 | 1.310 | 0.235 | 0.313 | |||
| 16 | H073301 | 0.893 | 1.327 | 0.202 | |||
| Block H3 | |||||||
| 1 | H071901 | 0.719 | -0.031 | 0.080 | -0.080 | ||
| 10 | H038401 | 1.248 | 1.583 | 0.195 | |||
| 13 | H072801 | 1.360 | 0.615 | 0.305 | |||
| Block H4 | |||||||
| 12 | H069601 | 0.890 | 0.552 | 0.661 | -0.661 | ||
| 20 | H071101 | 0.810 | 1.513 | 0.153 | |||
| 21 | H071301 | 0.827 | 0.124 | 0.314 | |||
| 22 | H071401 | 0.898 | 1.283 | 0.262 | |||
| 23 | H071701 | 1.045 | 0.816 | 0.323 | |||
| Block H5 | |||||||
| 2 | H070401 | 0.727 | 0.925 | 0.616 | -0.616 | ||
| 6 | H072001 | 1.001 | 0.309 | 0.363 | |||
| 7 | H072201 | 1.939 | 0.606 | 0.258 | |||
| 13 | H072701 | 0.528 | 0.505 | 1.447 | -1.194 | -0.253 | |
| Block H6 | |||||||
| 3 | H042101 | 0.362 | -0.284 | 0.264 | |||
| 4 | H042102 | 0.858 | 1.590 | 0.237 | |||
| 7 | H072301 | 1.821 | 0.289 | 0.273 | |||
| 11 | H072401 | 0.962 | 0.494 | 0.202 | |||
| 15 | H073101 | 0.604 | 0.386 | 0.346 | -0.346 | ||
| 16 | H042701 | 0.785 | -0.391 | 0.233 | |||
| 17 | H042702 | 0.996 | -0.202 | 0.253 | |||
| 21 | H043101 | 0.574 | 1.532 | 0.871 | -0.871 | ||
| Block H7 | |||||||
| 2 | H105301 | 0.614 | 1.280 | 0.802 | -0.802 | ||
| 4 | H098501 | 0.377 | -0.658 | 0.237 | |||
| 15 | H101901 | 0.612 | 0.559 | 0.215 | |||
| 16 | H1093MS | 0.268 | -1.149 | 2.211 | -2.211 | ||
| Block H8 | |||||||
| 2 | H103101 | 0.648 | 0.995 | 0.255 | |||
| 4 | H0989MS | 0.323 | 2.469 | ||||
| 8 | H111101 | 0.988 | -1.063 | 0.252 | |||
| Block H9 | |||||||
| 20 | H112101 | 0.564 | 0.502 | 0.518 | -0.518 | ||
Last updated 24 July 2024 (SK)