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Group means for head movement (degrees azimuth) during each task.
| head azimuth Mean (SD) | 4–6 yr old | 7–9 yr old | 10–15 yr old | adult |
|---|---|---|---|---|
| Control task |
1.53 (.21) |
.47 (.15) |
,32 (.18) |
.17 (.15) |
| Eye Only task |
6.04 (.99) |
2.85 (.70) |
.96 (.83) |
.21 (.70) |
| Eye Hand task |
11.67 (1.13) |
6.28 (.80) |
4.44 (.95) |
3.43 (.80) |
| Hand only task |
3.63 (.31) |
3.28 (.22) |
1.91 (.26) |
1.46 (.22) |
