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Measures of maternal talk during play session at 18 months
| Maternal talk | M | SD | Range |
|---|---|---|---|
| Number of utterances | 210.6 | 58.0 | 67–350 |
| Word tokens | 609.1 | 219.8 | 168–1204 |
| Word types | 110.5 | 26.6 | 54–191 |
| MLUa | 2.9 | 0.5 | 2.2–4.4 |
Note:
Mean length of utterance (in words).
