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NAEP Analysis and Scaling → Estimation of NAEP Score Scales → NAEP Scales → Scale Composition by Item Type for New and Trend Blocks → Block and Scale Composition, Grade 12 Mathematics National Assessment: 2015
NAEP Technical DocumentationBlock and Scale Composition, Grade 12 Mathematics National Assessment: 2015
| Block | Total number of items | Number of multiple-choice items | Number of constructed-response items | |||
|---|---|---|---|---|---|---|
| 2-category | 3-category | 4-category | 5-category | |||
| Total | 191 | 131 | 17 | 30 | 3 | 10 |
| M1 | 14 | 9 | 1 | 3 | 0 | 1 |
| M2 | 14 | 10 | 0 | 3 | 0 | 1 |
| M3 | 14 | 9 | 2 | 2 | 0 | 1 |
| M4 | 14 | 8 | 1 | 5 | 0 | 0 |
| M5 | 14 | 10 | 1 | 2 | 0 | 1 |
| M6 | 14 | 10 | 1 | 2 | 0 | 1 |
| M7 | 13 | 10 | 1 | 1 | 1 | 0 |
| M8 | 13 | 8 | 1 | 3 | 0 | 1 |
| M9 | 13 | 10 | 1 | 1 | 0 | 1 |
| M10 | 13 | 8 | 0 | 4 | 0 | 1 |
| M11 | 14 | 9 | 3 | 1 | 0 | 1 |
| M12 | 14 | 10 | 2 | 1 | 1 | 0 |
| M13 | 14 | 10 | 2 | 1 | 1 | 0 |
| M14 | 13 | 10 | 1 | 1 | 0 | 1 |
| NOTE: For a small number of constructed-response items, adjacent categories were combined. SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2015 Mathematics Assessment. | ||||||
| Subscale | Multiple-choice items | Dichotomously scored constructed-response items | Polytomously scored constructed-response items | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Concurrent | Split | Dropped | Concurrent | Split | Dropped | Polytomous (uncollapsed) | Dichotomous collapsed | Polytomous collapsed | Split | Dropped | |
| Total | 130 | 1 | 0 | 17 | 0 | 0 | 43 | 0 | 0 | 0 | 0 |
| Number properties and operations | 17 | 0 | 0 | 4 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
| Measurement and geometry | 34 | 1 | 0 | 7 | 0 | 0 | 17 | 0 | 0 | 0 | 0 |
| Data analysis, statistics, and probability | 32 | 0 | 0 | 4 | 0 | 0 | 12 | 0 | 0 | 0 | 0 |
| Algebra | 47 | 0 | 0 | 2 | 0 | 0 | 13 | 0 | 0 | 0 | 0 |
| NOTE: For grade 12 mathematics in 2015, all blocks are trend blocks. "Concurrent" denotes items that were scaled as the same items across assessment years. "Split" denotes items that were scaled as different items in each assessment year. "Dropped" denotes items that were deleted from the final scaling. "Collapsed" denotes items that had categories that were combined and recoded for scaling. The number of concurrent polytomously scored constructed-response items is equal to the total number in the first three categories under "Polytomously scored constructed-response items". SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2015 Mathematics Assessment. | |||||||||||
Last updated 26 November 2021 (ML)