Table 2. Comparison of recovered group with matched comparison group on five language and literacy outcomes measures.
Measure (n pairs) | Recovered M (SD) | Matched M (SD) | t (df) | p | d | Recovered (% low) | Matched (% low) | p |
---|---|---|---|---|---|---|---|---|
Oral language at age 7 (115) | −0.05 (0.84) | .00 (1.05) | −0.48 (114) | .63 | 0.05 | 10.4 | 9.6 | .32 |
Word decoding at age 7 (114) | 0.04 (0.91) | .00 (0.89) | 0.29 (113) | .78 | 0.04 | 6.1 | 8.8 | .52 |
Receptive language at age 12 (51) | −0.06 (1.04) | −0.01 (0.92) | −0.24 (50) | .82 | 0.05 | 13.7 | 11.8 | .39 |
Word decoding at age 12 (49) | 0.10 (0.90) | −0.21 (0.95) | 1.83 (48) | .07 | 0.28 | 6.1 | 16.3 | .58 |
Reading comprehension at age 12 (69) | 0.14 (0.94) | −0.01 (1.10) | 0.95 (68) | .35 | 0.15 | 7.2 | 14.5 | .56 |
Note. Analyses in this table are based on paired-sample t tests, or Fisher’s exact tests, based on one randomly chosen twin per pair.