Table 2.
Child age (mean and SD) and measures (mean and SD) of maternal repetition, separated by hearing status (CI, NH-HEM, NH-CAM) and interval (3 months, 6 months).
| Interval |
||||||
|---|---|---|---|---|---|---|
| Measures |
3 months |
6 months |
||||
| Hearing status | CI | NH-HEM | NH-CAM | CI | NH-HEM | NH-CAM |
| Hearing age | 2.98 (0.52) | 3.08 (0.44) | 17.05 (3.58) | 6.32 (0.76) | 6.15 (0.55) | 20.43 (3.49) |
| Chronological age | 16.88 (3.49) | 3.08 (0.44) | 17.05 (3.58) | 20.22 (3.37) | 6.15 (0.55) | 20.43 (3.49) |
| Session duration | 5.11 (1.04) | 4.68 (0.81) | 5.05 (0.59) | 5.02 (0.69) | 4.79 (0.73) | 5.24 (0.38) |
| Total words produced | 65.5 (20.9) | 68.9 (21.4) | 81.6 (21.4) | 64.8 (23.3) | 69.7 (21.2) | 79.6 (18.7) |
| Total utterance produced | 22.54 (6.51) | 20.64 (5.56) | 27.52 (4.61) | 21.71 (5.91) | 22.26 (9.04) | 27.44 (4.34) |
| Total Repetition | 3.78 (2.99) | 3.21 (1.85) | 4.56 (1.72) | 3.93 (2.91) | 3.80 (2.62) | 3.88 (1.94) |
| Novel Context Repetition | 1.24 (0.94) | 1.01 (0.47) | 1.61 (0.65) | 1.08 (0.73) | 1.18 (0.72) | 1.28 (0.63) |
| Average Repetition | 0.58 (0.27) | .69 (0.25) | 0.58 (0.11) | 0.66 (0.30) | 0.64 (0.28) | 0.59 (0.19) |
| Max Repetition | 0.94 (0.53) | 1.08 (0.63) | 0.99 (0.36) | 1.09 (0.66) | 0.95 (0.51) | 0.97 (0.37) |
| Repetition ≥ 3 | 0.69 (0.55) | 0.57 (0.39) | 0.83 (0.44) | 0.67 (0.47) | 0.62 (0.52) | 0.60 (0.36) |
Note. Total words produced, Total utterance produced, and all the five repetition measures reported were normalized by session duration. Hearing age = duration of child hearing experience in months; Session duration = the duration of the session in minutes; CI = infants with cochlear implants; NH-HEM = hearing experience–matched peers with normal hearing; NH-CAM = chronological age–matched peers with normal hearing.