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NAEP Analysis and Scaling → Scale Linking and Transformation to the Reporting Metric → Transformation Constants for NAEP Assessments → Coefficients of Linear Transformation of the Subscales from the Calibrating Scale Units to the Units of the Reporting Scale, Mathematics Combined National and State Assessment, by Subscale and Grade: 2019
NAEP Technical DocumentationCoefficients of Linear Transformation of the Subscales from the Calibrating Scale Units to the Units of the Reporting Scale, Mathematics Combined National and State Assessment, by Subscale and Grade: 2019
| Subscale | A | B |
|---|---|---|
| Transformed scale scores below 0 were reset to values of 0, and transformed scale scores greater than 500 were reset to values of 500. | ||
| U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2019 Mathematics Assessment. | ||
| Grade 4 | ||
| Number properties and operations | 35.84 | 243.24 |
| Measurement | 36.57 | 239.85 |
| Geometry | 25.88 | 234.69 |
| Data analysis, statistics, and probability | 30.41 | 238.23 |
| Algebra | 30.28 | 243.84 |
| Grade 8 | ||
| Number properties and operations | 39.26 | 280.68 |
| Measurement | 48.23 | 281.90 |
| Geometry | 34.41 | 279.52 |
| Data analysis, statistics, and probability | 45.54 | 280.81 |
| Algebra | 40.23 | 290.45 |
| Subscale | A | B |
|---|---|---|
| DBA = Digitally based assessment. Transformed scale scores below 0 were reset to values of 0, and transformed scale scores greater than 300 were reset to values of 300. Since 2005, the measurement and geometry scales are combined at grade 12. | ||
| U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2019 Mathematics Assessment. | ||
| Grade 12 | ||
| Number properties and operations | 36.80 | 145.29 |
| Measurement and geometry | 34.15 | 149.68 |
| Data analysis, statistics, and probability | 38.82 | 150.78 |
| Algebra | 36.81 | 152.80 |
| Subscale | A | B |
|---|---|---|
| PBA = Paper-based assessment. Transformed scale scores below 0 were reset to values of 0, and transformed scale scores greater than 300 were reset to values of 300. Since 2005, the measurement and geometry scales are combined at grade 12. | ||
| U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2019 Mathematics Assessment. | ||
| Grade 12 | ||
| Number properties and operations | 33.92 | 147.34 |
| Measurement and geometry | 34.07 | 150.74 |
| Data analysis, statistics, and probability | 37.95 | 151.43 |
| Algebra | 34.92 | 153.69 |
Last updated 05 October 2023 (SK)