Table 1.
Means and standard deviations for reading achievement (Read) and independent reading (Print)
| Whole sample | Girls | Boys | Effect size of sex |
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|---|---|---|---|---|---|---|---|
|
|
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| M (SD) | n | M (SD) | n | M (SD) | n | d | |
| Read1 | 499.73 (15.31) |
379 | 499.21 (16.15) |
216 | 500.43 (14.12) |
163 | .12 |
| Print1 | 3.08 (.77) |
355 | 3.21 (.76) |
199 | 2.91 (.76) |
156 | .41 |
| Read2 | 507.43 (13.17) |
283 | 507.32 (14.05) |
167 | 507.58 (11.85) |
116 | .17 |
| Print2 | 3.17 (.83) |
238 | 3.29 (.79) |
145 | 2.99 (.87) |
93 | .32 |
Note: Read1, Print1 = reading achievement and independent reading at Age 10; Read2, Print2 = reading achievement and independent reading at Age 11.