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*Significant at the 0.05 level
CP: cerebral palsy
| Variable | Mean (SD) | Mean diff. | SE mean | t | P |
| -2.48 | 0.52 | -04.73* | 0 | ||
| Affected | 7.07 (2.13) | ||||
| Nonaffected | 4.59 (1.49) |
