Table 4.
No Lessons |
1–39 Lessons |
40+ Lessons |
ANOVA |
Effect Size |
|||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Measure | Grade | N | M | SD | N | M | SD | N | M | SD | F |
p Value |
d1 | d2 | d3 |
CRT | 4 | 261 | 172.09 | 208.66 | 206 | 194.21 | 206.21 | 160 | 183.09 | 192.18 | 0.46 | .500 | 0.11 | −0.05 | 0.05 |
5 | 257 | 63.47 | 204.15 | 189 | 93.24 | 207.88 | 110 | 181.68 | 215.96 | 22.63 | .002 | 0.15 | 0.43 | 0.58 | |
6 | 842 | 70.66 | 217.61 | 271 | 124.06 | 240.62 | 94 | 167.21 | 248.43 | 23.34 | .002 | 0.25 | 0.18 | 0.44 | |
7 | 802 | 49.42 | 217.78 | 218 | 118.21 | 226.99 | 120 | 171.46 | 223.43 | 42.11 | .002 | 0.32 | 0.23 | 0.56 | |
8 | 935 | 58.07 | 186.99 | 245 | 165.63 | 184.04 | 175 | 151.53 | 195.10 | 66.74 | .002 | 0.58 | −0.08 | 0.50 | |
9 | 1,686 | 70.17 | 198.09 | 259 | 95.46 | 188.81 | 178 | 120.52 | 202.56 | 12.93 | .002 | 0.13 | 0.13 | 0.25 | |
10 | 1.553 | 35.92 | 218.24 | 288 | 21.57 | 193.29 | 190 | 45.94 | 176.45 | 0.01 | .500 | −0.07 | 0.13 | 0.05 | |
NRT | 4 | 260 | 3.89 | 24.78 | 206 | 9.68 | 22.80 | 158 | 10.46 | 22.11 | 8.87 | .007 | 0.23 | 0.03 | 0.26 |
5 | 256 | 12.34 | 22.45 | 187 | 19.80 | 24.74 | 109 | 25.79 | 20.77 | 28.89 | .002 | 0.33 | 0.24 | 0.60 | |
6 | 839 | 11.69 | 24.49 | 269 | 14.45 | 23.09 | 94 | 17.13 | 24.54 | 6.01 | .061 | 0.11 | 0.12 | 0.22 | |
7 | 786 | 6.80 | 23.64 | 215 | 5.17 | 23.54 | 119 | 8.66 | 23.44 | 0.07 | .500 | −0.07 | 0.15 | 0.08 | |
8 | 927 | 7.52 | 25.64 | 237 | 11.96 | 26.98 | 168 | 8.93 | 23.04 | 2.18 | .163 | 0.17 | −0.11 | 0.06 | |
9 | 1,626 | 11.95 | 29.26 | 238 | 6.82 | 32.10 | 177 | 13.59 | 28.49 | 0.20 | .651 | −0.18 | 0.21 | 0.06 | |
10 | 1,484 | 1.42 | 29.70 | 259 | 5.31 | 28.53 | 178 | 8.08 | 25.68 | 10.84 | .002 | 0.13 | 0.10 | 0.22 |
Note. p Values reflect linear step up adjustments.