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NAEP Analysis and Scaling → Scale Linking and Transformation to the Reporting Metric → The Transformation Equation → Comparisons of Distributions of Linking Samples for NAEP Assessments → Comparison means and percentiles of 1996 scores and 1996 transformed provisional scores, grade 4 science assessment: 2000
| Scale | Statistic | Original 1996 estimate | 1996 transformed provisional estimate | Difference between the provisional estimate and the original estimate |
|---|---|---|---|---|
| Composite | Mean | 150.00 | 150.00 | 0.00 |
| 10th percentile | 105.19 | 104.74 | -0.45 | |
| 25th percentile | 129.67 | 129.09 | -0.58 | |
| 50th percentile | 152.92 | 152.74 | -0.18 | |
| 75th percentile | 173.37 | 173.80 | 0.42 | |
| 90th percentile | 190.07 | 190.97 | 0.90 | |
| Physical | Mean | 150.00 | 150.00 | 0.00 |
| 10th percentile | 103.49 | 103.29 | -0.20 | |
| 25th percentile | 127.64 | 128.04 | 0.40 | |
| 50th percentile | 152.38 | 152.31 | -0.07 | |
| 75th percentile | 174.45 | 174.67 | 0.21 | |
| 90th percentile | 193.33 | 193.04 | -0.29 | |
| Earth | Mean | 150.00 | 150.00 | 0.00 |
| 10th percentile | 103.10 | 103.04 | -0.06 | |
| 25th percentile | 128.44 | 128.04 | -0.40 | |
| 50th percentile | 152.96 | 152.40 | -0.55 | |
| 75th percentile | 174.45 | 174.57 | 0.12 | |
| 90th percentile | 192.34 | 193.05 | 0.72 | |
| Life | Mean | 150.00 | 150.00 | 0.00 |
| 10th percentile | 103.08 | 103.11 | 0.03 | |
| 25th percentile | 128.16 | 127.75 | -0.41 | |
| 50th percentile | 152.58 | 152.73 | 0.15 | |
| 75th percentile | 174.58 | 174.73 | 0.15 | |
| 90th percentile | 192.82 | 192.60 | -0.22 | |
| SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2000 Science Assessment. | ||||
Last updated 25 March 2008 (GF)
