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Intra‐class correlation for each sub‐scale (n = 60)
| Bayley sub‐scale | Intra‐class coefficient (95% confidence interval) |
|---|---|
| Cognitive | 0.91 (0.87, 0.95) |
| Receptive language | 0.95 (0.93, 0.97) |
| Expressive language | 0.99 (0.98, 0.99) |
| Fine motor | 0.95 (0.93, 0.97) |
| Gross motor | 0.96 (0.95, 0.98) |
