Table 5.
Year 3 student achievement in mathematics and reading (2019–2020) by ICSEA
| Outcome | n | Baseline mean (95% CI) |
Ceiling n (%) | Retest % | n (miss) | Mean change from baseline (95% CI) | Adjusted mean difference (95% CI)a | Adjusted effect size d (95% CI)a | p |
|---|---|---|---|---|---|---|---|---|---|
| Year 3 | |||||||||
| Mathematics | |||||||||
| ICSEA < 950 | |||||||||
| 2020 | 144 | 32.5 (27.78, 37.22) | 0 (0) | 86 | 124 (20) | 11.66* (8.83, 14.49) | − 4.03 (− 7.74, − 0.32) | − 0.16 (− 0.31, − 0.01) | 0.033* |
| 2019 | 190 | 31.77 (27.47, 36.06) | 1 (0.5) | 91 | 173 (17) | 15.69* (13.29, 18.09) | Reference | Reference | |
| ICSEA 950–1049 | |||||||||
| 2020 | 414 | 39.19 (35.58, 42.81) | 0 (0) | 91 | 375 (39) | 18.23* (16.46, 20.01) | 4.06 (1.53, 6.59) | 0.15 (0.06, 0.25) | 0.002* |
| 2019 | 399 | 40.04 (36.39, 43.69) | 0 (0) | 90 | 360 (39) | 14.17* (12.36, 15.98) | Reference | Reference | |
| ICSEA 1050 + | |||||||||
| 2020 | 112 | 51.92 (46.83, 57.02) | 0 (0) | 97 | 109 (3) | 19.83* (16.71, 22.95) | 1.31 (− 2.74, 5.36) | 0.05 (− 0.11, 0.21) | 0.525 |
| 2019 | 168 | 52.78 (48.25, 57.31) | 4 (2.2) | 95 | 160 (8) | 18.52* (15.95, 21.1) | Reference | Reference | |
| Reading | |||||||||
| ICSEA < 950 | |||||||||
| 2020 | 148 | 24.39 (20.05, 28.74) | 0 (0) | 85 | 126 (22) | 18.41* (14.95, 21.87) | − 1.32 (− 5.88, 3.24) | − 0.05 (− 0.22, 0.12) | 0.569 |
| 2019 | 193 | 20.98 (17.11, 24.86) | 0 (0) | 89 | 172 (21) | 19.74* (16.77, 22.71) | Reference | Reference | |
| ICSEA 950–1049 | |||||||||
| 2020 | 401 | 28.58 (24.84, 32.31) | 3 (0.7) | 92 | 369 (32) | 23.70* (21.69, 25.71) | 2.21 (− 0.64, 5.07) | 0.08 (− 0.02, 0.18) | 0.129 |
| 2019 | 397 | 27.67 (23.94, 31.4) | 0 (0) | 91 | 361 (36) | 21.49* (19.46, 23.52) | Reference | Reference | |
| ICSEA 1050 + | |||||||||
| 2020 | 115 | 46.34 (40.64, 52.05) | 0 (0) | 96 | 110 (5) | 23.98* (20.37, 27.59) | 0.48 (− 4.19, 5.14) | 0.02 (− 0.15, 0.18) | 0.841 |
| 2019 | 175 | 45.26 (40.19, 50.32) | 0 (0) | 94 | 165 (10) | 23.50* (20.56, 26.45) | Reference | Reference |
CI Confidence interval
*Significance at p < 0.05
aBetween year difference of change score (2020 change minus 2019 change)