Skip to Main content Skip to Navigation
Journal articles

How should "ambidexterity" be estimated?

Abstract : Weak and absent hand preferences have often been associated with developmental disorders or with cognitive functioning in the typical population. The results of different studies in this area, however, are not always coherent. One likely reason for discrepancies in findings is the diversity of cut-offs used to define ambidexterity and mixed right- and mixed left-handedness. Establishing and applying a common criterion would constitute an important step on the way to producing systematically comparable results. We thus decided to try to identify criteria for classifying individuals ambidextrous, mixed right- or left-handed or strong right- or left-handed. For that purpose, we first administered a handedness questionnaire to 716 individuals and performed multiple correspondence analyses to define handedness groups. Twenty-four participants were categorized as ambidextrous (3.3%), as opposed to mixed (29.2%) and strong (56%) right-handers, and to mixed (9.1%) and strong (2.4%) left-handers. We then compared this categorization with laterality index (LI)-based categories using different cut-offs and found that it was most correlated with LI cut-offs at -90, -30, +30 and +90, successively delimiting strong left-handedness, mixed left-handedness, ambidexterity (-30 to +30), mixed right-handedness and strong right-handedness. The characteristics of ambidextrous and lateralized individuals are also compared.
Document type :
Journal articles
Complete list of metadata
Contributor : Laurent Jonchère Connect in order to contact the contributor
Submitted on : Tuesday, December 15, 2015 - 2:19:07 PM
Last modification on : Wednesday, February 10, 2021 - 2:16:05 PM
Long-term archiving on: : Saturday, April 29, 2017 - 3:09:04 PM


How should ambidexterity be es...
Files produced by the author(s)



Jacqueline Fagard, Amandine Chapelain, Philippe Bonnet. How should "ambidexterity" be estimated?. Laterality, Taylor & Francis, 2015, 20 (5), pp.543--570. ⟨10.1080/1357650X.2015.1009089⟩. ⟨hal-01193161⟩



Record views


Files downloads