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Block | Item | Range of response codes | Sample size | Percent exact agreement | Cohen's Kappa |
---|---|---|---|---|---|
M1 | N270001 | 1–2 | 600 | 99 | 0.98 |
N270901 | 1–2 | 600 | 99 | 0.90 | |
N276101 | 1–2 | 600 | 99 | 0.98 | |
N276801 | 1–2 | 700 | 100 | 0.92 | |
N276802 | 1–2 | 600 | 99 | 0.96 | |
N276803 | 1–2 | 600 | 99 | 0.97 | |
N284001 | 1–2 | 600 | 99 | 0.96 | |
N284002 | 1–2 | 500 | 99 | 0.97 | |
N286101 | 1–2 | 600 | 99 | 0.97 | |
M2 | N271101 | 1–2 | 600 | 99 | 0.96 |
N275401 | 1–2 | 600 | 99 | 0.97 | |
N276001 | 1–2 | 600 | 99 | 0.96 | |
N276002 | 1–2 | 500 | 100 | 0.99 | |
N277501 | 1–2 | 600 | 99 | 0.98 | |
N277601 | 1–2 | 600 | 100 | 0.99 | |
N277602 | 1–2 | 600 | 99 | 0.98 | |
N277603 | 1–2 | 600 | 99 | 0.99 | |
N286102 | 1–2 | 500 | 98 | 0.96 | |
M21 | N292101 | 1–2 | 1,200 | 100 | 0.99 |
N292401 | 1–2 | 1,200 | 100 | 0.99 | |
N293001 | 1–2 | 1,200 | 100 | 0.99 | |
N293301 | 1–2 | 1,200 | 100 | 0.99 | |
N293501 | 1–2 | 1,200 | 100 | 0.99 | |
M22 | N294201 | 1–2 | 600 | 99 | 0.89 |
N294301 | 1–2 | 600 | 100 | 1.00 | |
N295301 | 1–2 | 600 | 100 | 0.99 | |
N295401 | 1–2 | 600 | 99 | 0.99 | |
N295701 | 1–2 | 400 | 100 | 1.00 | |
NOTE: Cohen's Kappa is a measure of reliability that is appropriate for items that are dichotomously scored. SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2004 Mathematics Long-Term Trend Assessment. |