Table 4.
Post-hoc analysis of mean differences by teaching area
| Factor | Differences | 95% Confidence intervals |
|---|---|---|
| Source literacy | ||
| History versus ELA | 0.18 | [− 0.016, 0.366] |
| Math versus ELA | − 1.21*** | [− 1.424, − 0.987] |
| Science versus ELA | − 0.04 | [− 0.206, 0.137] |
| Math versus History | − 1.38*** | [− 1.625, − 1.136] |
| Science versus History | − 0.21* | [− 0.413, 0.007] |
| Science versus Math | 1.17*** | [0.942, 1.400] |
| Analytic literacy | ||
| ELA versus Math | − 0.74*** | [− 0.920, − 0.567] |
| ELA versus Science | − 0.70*** | [− 0.837, − 0.560] |
| ELA versus History | − 0.39*** | [− 0.514, − 0.206] |
| Math versus Science | 0.05 | [− 0.140, 0.230] |
| Math versus History | 0.38*** | [0.186, 0.581] |
| Science versus History | 0.34*** | [0.175, 0.503] |
| Expressive literacy | ||
| ELA versus Math | 1.73*** | [1.524, 1.942] |
| ELA versus Science | 1.22*** | [1.052, 1.379] |
| ELA versus History | 0.83*** | [0.644, 1.010] |
| Math versus Science | − 0.52*** | [− 0.738, − 0.299] |
| Math versus History | − 0.91*** | [− 1.140, − 0.672] |
| Science versus History | − 0.39*** | [− 0.583, − 0.194] |
*p < 0.05; **p < 0.01; ***p < 0.001
aAll differences and confidence intervals were conducted with the Dunnett (1980) modified Tukey–Kramer test