Table of Contents | Search Technical Documentation | References
| Statistic | Multiple-choice items | Dichotomous constructed-response items | Polytomous constructed-response items |
|---|---|---|---|
| Not applicable. | |||
| Rounds to zero. | |||
| Missing responses include the categories "omitted" and "not-reached." | |||
| An "off-task" response (constructed-response items only) is a response that is unrelated to the question. | |||
| The average percentages are weighted to reflect sampling design. In 2022, grades 4 and 12 were not assessed. | |||
| 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. | |||
| Grade 8 | |||
| Number of items | 134 | 2 | 58 |
| Average percent missing | 3.38 | 13.67 | 9.56 |
| Minimum | 0.14 | 5.87 | 0.40 |
| Maximum | 19.86 | 21.47 | 23.05 |
| Average percent off-task | 2.55 | 1.98 | |
| Minimum | 2.18 | ||
| Maximum | 2.91 | 8.35 | |
| Average weighted percent correct | 51.55 | 27.63 | 33.30 |