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Descriptive statistics for continuous study measures.
| Variables | M (SD) | N |
| Age 3.5 | ||
| Effortful control | 4.70 (0.85) | 315 |
| Screen time (hours/day) | 3.42 (2.44) | 315 |
| Parenting stress | 27.14 (7.88) | 315 |
| Division of childcare | 2.15 (1.04) | 305 |
| Age 4.5 | ||
| Effortful control | 4.88 (0.82) | 264 |
| Screen time (hours/day) | 3.25 (2.38) | 265 |
