Edinburgh Handedness Inventory

Description

A ten-item questionnaire designed to assess handedness by self-report of the preferred hand for carrying out common activities such as writing and drawing, throwing, and using utensils such as a toothbrush, knife, and spoon. Subjects place 1 or 2 check marks under “left” or “right,” indicating strength of preference for each activity; 2 checks are to be used if the individual “would never try to use the other hand unless absolutely forced to” for the given function. As some activities require the use of both hands, the directions specify which component reflects hand preference (e.g., in striking a match, the hand that holds the match). A laterality quotient (LQ = R – L / R + L × 100) can be calculated where a score of 100 reflects complete dextrality and a score of −100 is obtained by complete sinistrals. A four-item short form proposed by Veale (2014) was reported to show good reliability and to correlate with scores on the longer version.

Some methodological problems...