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Handedness is a better

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Handedness is a better (faster or more precise) performance or individual preference for use of a hand, known as the dominant hand.

Handedness is not a discrete variable (right or left), but a continuous one that can be expressed at levels between the strong left and strong right.

There are four types of handedness: left-handedness, right-handedness, mixed-handedness, and ambidexterity. Left-handedness is somewhat more common among men than among women.

  • Right-handedness is most common. Right-handed people are more skillful with their right hands when performing tasks. Studies suggest that 87–92% of the world population are right-handed.
  • Left-handedness is less common than right-handedness. Left-handed people are more skillful with their left hands when performing tasks. Studies suggest that approximately 10% of the world population are left-handed.
  • Cross-dominance or Mixed-handedness is the change of hand preference between tasks. This is common in the population with about a 30% prevalence.
  • Ambidexterity is exceptionally rare, although it can be learned. A truly ambidextrous person is able to do any task equally well with either hand. Those who learn it still tend to favor their originally dominant hand.
  • Ambilevous or ambisinister people demonstrate awkwardness with both hands. Ambisinistrous motor skills or a low level of dexterity may be the result of a debilitating physical condition, such as “dysgraphia”

From Wikipedia

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