CONSISTENCY OF PERFORMANCE ON EYEDNESS TASKS

Two forms of eye lateralization, called here dominance and preference, were investigated by giving participants multiple trials at each task dispersed over different days. Questionnaire data were also collected . It was found that: (1) a large percentage of persons cannot tell whi ch eye they would use at eyedness tasks; (2) that over one-third of al l participants give inconsistent results (some trials use right eye, o ther trials the left) on the dominance task and about one-sixth are in consistent on the preference task; (3) that a typical inconsistency pr ofile for dominance is unlike that for preference; and (4) that domina nce seems to drive preference. The appropriateness of a binomial model for individual eyedness data and reasons for low correlations between tasks are also discussed.