In human biology, handedness is an individual's preferential use of one hand, known as the dominant hand, due to it being stronger, faster or more dextrous. The other hand, comparatively … Mostra'n més

Handedness may be measured behaviourally (performance measures) or through questionnaires (preference measures). The Edinburgh Handedness Inventory has … Mostra'n més

There are several theories of how handedness develops.
Genetic factors
Handedness displays a complex inheritance pattern. For example, if both parents of a child are left-handed, there is a 26% chance … Mostra'n més

Researchers studied fetuses in utero and determined that handedness in the womb was a very accurate predictor of handedness … Mostra'n més

The modern turn in handedness research has been towards emphasizing degree rather than direction of handedness as a critical variable.
Intelligence
In his book Right-Hand, Left-Hand, Chris McManus of Mostra'n més

Many tools and procedures are designed to facilitate use by right-handed people, often without realizing the difficulties incurred by the … Mostra'n més

McManus noted that, as the Industrial Revolution spread across Western Europe and the United States in the 19th century, workers needed to operate complex machines that … Mostra'n més