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Number of infants in each experimental group
| Age (months) | 0-1 | 1-2 | 2-3 | 3-4 | 4-5 | 5-6 | 6-7 | 7-8 | 8-9 | 9-10 | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|
| No practice | 14 | 7 | 6 | 5 | 3 | 6 | 7 | 7 | 2 | 1 | 58 |
| Practice | 0 | 2 | 4 | 3 | 3 | 1 | 4 | 1 | 0 | 1 | 19 |
The number of infants in each of the two groups, with no practice stepping and with practice stepping, are shown for the various age ranges. No infants were tested in the 0–1 and the 8–9 month age ranges who had practice stepping.
