Age interval | n | Communication | Gross motor | Fine motor | Problem solving | Personal and social |
---|
| Mo | U.S. | Mo | U.S. | Mo | U.S. | Mo | U.S. | Mo | U.S. | Mo | U.S. |
---|
36 monthsa
| 68 | 248 | .77 | .77 | .48 | .77 | .79 | .78 | .49 | .83 | .73 | .73 |
42 monthsb
| 55 | 956 | .64 | .82 | .58 | 68 | .73 | .82 | .80 | .84 | .64 | .80 |
48 monthsa
| 74 | 336 | .87 | .73 | .74 | .69 | .82 | .82 | .79 | .66 | .76 | .75 |
54 monthsb
| 61 | 590 | .75 | .81 | .46 | .68 | .87 | .81 | .62 | .75 | .81 | .77 |
-
Note. Mo: Mohwak. All correlations are significant at p < .01 except for the U.S. populationb at p < .0001.
- Correlations for the U.S. sample were combined from two different sources: aSquires et al. [3] (second edition) and bSquires et al. [18] (third edition) user’s guides as the coefficients for the 42- and 54-month intervals were not available in the second edition. Coefficients for the U.S. sample are presented for informational purposes.