Table 2.
Demographic characteristics of sample by condition.
| Live | Video chat | Prerecorded | Control | |
|---|---|---|---|---|
| Age in months (SD) | 52.01 (3.01) | 52.25 (4.42) | 53.05 (4.40) | 50.70 (2.32) |
| Site | ||||
| Site 1 | 11 | 16 | 15 | 9 |
| Site 2 | 7 | 5 | 4 | 2 |
| Gender | ||||
| Male | 8 | 10 | 9 | 5 |
| Female | 10 | 11 | 10 | 6 |
| Primary caregiver education | ||||
| Less than bachelor’s degree | 3 | 4 | 6 | 4 |
| Bachelor’s degree | 3 | 6 | 4 | 2 |
| Graduate degree | 12 | 11 | 9 | 5 |
| No response | 0 | 0 | 0 | 0 |
| Secondary caregiver education | ||||
| Less than bachelor’s degree | 5 | 9 | 6 | 1 |
| Bachelor’s degree | 6 | 6 | 5 | 2 |
| Graduate degree | 7 | 5 | 8 | 8 |
| No response | 0 | 1 | 0 | 0 |
| Race/ethnicity | ||||
| White | 15 | 16 | 12 | 9 |
| Black | 1 | 1 | 1 | 0 |
| Hispanic | 0 | 0 | 1 | 0 |
| Asian | 1 | 2 | 2 | 1 |
| Other/multiple races | 1 | 0 | 1 | 1 |
| No response | 0 | 2 | 2 | 0 |
Experimental N = 58 for transfer vocabulary measure, 57 for receptive vocabulary measure, 56 for explicit comprehension measure, 54 for expressive vocabulary, 53 for page-by-page retell, and 52 for implicit comprehension; Control N = 11.