Handedness where the organism exhibits no overall dominance in the use of right or left hand or foot in the performance of tasks that require one (dominant) hand or foot.
Handedness where the organism exhibits equally poor dexterity in the use of right or left hand or foot in the performance of tasks that require one (dominant) hand or foot.
Handedness where the organism exhibits dominance in the use of right or left hand or foot differently in the performance of different tasks that require one (dominant) hand or foot.