Participants were told that digits between 1 and 9 (excluding 5) would be presented and that they had to indicate the parity of each number by pressing two keys with the index and middle fingers of their
preferred hand. Instructions explicitly reminded that 1, 3, 7 and 9 were odd numbers and that 2, 4, 6 and 8 were even numbers.
Once the participants were given the rope they held the cutting instrument in their
preferred hand and the rope in the other.
On the Finger Tapping Task (Lezak 1995), the child tapped a key for a series of 15-sec sessions, first completing one session with the
preferred hand for practice, then two sessions with the
preferred hand, and then two more sessions with the nonpreferred hand.
However, by 12 months the child will reach with his non-preferred hand, so he can do the more challenging object manipulation with his
preferred hand. Similarly, while the question "On which leg do you prefer to stand" is one of several standard child and adult foot laterality tests, it is not a particularly relevant laterality question for a ballet student who daily performs a lengthy barre alternately balancing on the right and left leg.
When compared to a control subjects'
preferred hand and to the ipsilateral (non-preferred) hand, the contralateral hand had a lower concordance phase value.
Farmers
preferred hand shearing as it left more wool on the sheep to protect it in a harsher environment, such as the Pennine moors, but eventually the speed of modern clippers held sway.