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Block | Item | Range of response codes | Sample size | Percent exact agreement | Cohen's Kappa1 | Intraclass correlation2 |
---|---|---|---|---|---|---|
G4 | G008503 | 1–3 | 600 | 94 | † | 0.93 |
G008701 | 1–3 | 600 | 94 | † | 0.94 | |
G009001 | 1–4 | 600 | 83 | † | 0.89 | |
G5 | G009201 | 1–3 | 600 | 88 | † | 0.87 |
G009402 | 1–3 | 600 | 94 | † | 0.91 | |
G009403 | 1–3 | 600 | 94 | † | 0.88 | |
G009601 | 1–4 | 600 | 91 | † | 0.96 | |
G8 | G012201 | 1–3 | 600 | 97 | † | 0.97 |
G012503 | 1–3 | 600 | 99 | † | 0.99 | |
G012902 | 1–3 | 600 | 98 | † | 0.99 | |
G013001 | 1–4 | 600 | 94 | † | 0.97 | |
G013201 | 1–3 | 600 | 91 | † | 0.82 | |
† Not applicable. The intraclass correlation is not reported for dichotomously scored items; Cohen's Kappa is not reported for polytomously scored items. 1 Cohen’s Kappa is a measure of reliability that is appropriate for items that are dichotomously scored. 2 The intraclass correlation coefficient is most appropriate for items with more than two categories. SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2001 Geography Assessment. |