Table 1.
Mean REEL, RDLS, and Bayley Scores for Groups at each Assessment Point
| Bayley quotient |
REEL quotient |
RDLS percentage |
|||||||
|---|---|---|---|---|---|---|---|---|---|
| Assessment | Group | DQ | N | Expressive | Receptive | N | Expressive | Receptive | N |
| Baseline | IG | 77.1 (9.8) | 12 | 49.8 (16.4) | 79.8 (14.6) | 12 | |||
| FG | 81.1 (15.1) | 17 | 52.1 (24.1) | 73.7 (21.3) | 17 | ||||
| NIG | 103.4 (10.5) | 56 | 100.8 (18.7) | 112.5 (16.6) | 56 | ||||
| 30 months | IG | 77.2 (11.4) | 59 | 64.0 (17.3) | 74.8 (15.3) | 59 | 14.5 (13.6) | 34.0 (32.6) | 52 |
| FG | 81.9 (11.6) | 53 | 74.2 (21.4) | 83.3 (17.5) | 53 | 21.8 (19.5) | 41.5 (14.0) | 49 | |
| NIG | 102.2 (12.7) | 57 | 104.7 (14.6) | 109.7 (9.7) | 57 | 53.2 (19.7) | 66.0 (14.7) | 57 | |
| 42 months | IG | 78.9 (12.6) | 60 | 49.0 (20.0) | 62.0 (12.7) | 60 | |||
| FG | 85.7 (14.2) | 57 | 60.0 (24.0) | 71.2 (16.0) | 57 | ||||
| NIG | 103.3 (11.9) | 51 | 88.7 (15.3) | 90.2 (9.1) | 51 | ||||
Note. IG = institution group; FG = foster group; NIG = non-institution group. DQ = Bayley Developmental Quotient; REEL = Receptive-Expressive Emergent Language Scale; RDLS = Reynell Developmental Language Scales. N = sample size; SD is in parentheses.