Table 3 T tests, effect sizes, and predicted percentile gains for first grade literacy outcomes as a result of Pre-K attendance
Literacy outcome | t | p | g ESa | Predicted percentile gain | Predicted percentile change |
|---|---|---|---|---|---|
Fall PALS sum score | 4.76 | .001 | .398 | 16 | 50th–66th |
Mid-year PALS sum score | 3.99 | .001 | .332 | 13 | 50th–63rd |
Fall PALS spelling | 4.72 | .001 | .395 | 16 | 50th–66th |
Mid-year PALS spelling | 3.15 | .002 | .261 | 10 | 50th–60th |
Fall PALS letter sounds | 2.75 | .006 | .228 | 9 | 50th–59th |
Mid-year PALS letter sounds | 3.193 | .001 | .266 | 11 | 50th–61st |