An IERI – International Educational Research Institute Journal
Table 2 Intraclass correlation coefficients for math and science from 2009 to 2018
Subject | 2009 | 2012 | 2015 | 2018 | |
|---|---|---|---|---|---|
Math | Intercept (country) | 2015 | 1861 | 2007 | 2046 |
Intercept (school) | 2880 | 2900 | 2112 | 2172 | |
Residual | 4525 | 4503 | 5870 | 6047 | |
ICC for country | 21.4 | 20.1 | 20.1 | 19.9 | |
ICC for school | 30.6 | 31.3 | 21.1 | 21.2 | |
Science | Intercept (country) | 1671 | 1310 | 1564 | 1711 |
Intercept (school) | 2774 | 2621 | 2242 | 2134 | |
Residual | 4665 | 4412 | 6255 | 6188 | |
ICC for country | 18.3 | 15.7 | 15.5 | 17.1 | |
ICC for school | 30.4 | 31.4 | 22.3 | 21.3 |