Factor stability of the Edinburgh Handedness Inventory as a function of test-retest performance, age and sex

摘要: The Edinburgh Handedness Inventory (EHI) was administered to 600 students from two urban secondary schools and universities. respondents were categorized by age (three groups) sex. questionnaire re-administered a sample of 69 after an interval 4 weeks. Principal axes factor analysis the test retest data showed EHI have single which exhibited high stability over test-retest time period. However, one item (the use scissors) relatively unstable in relation derived (handedness) factor. A simple structure also extracted each ‘age × sex’ set. handedness across both three items (knife, broom box-lid) did not load well on generally this When assessing with it is recommended that responses particular be weighted according their contribution Alternative scoring procedures would seriously affect otherwise validity has for handedness.