How to increase your chances of obtaining a significant association between handedness and disorder
- 1 October 1990
- journal article
- research article
- Published by Informa UK Limited in Journal of Clinical and Experimental Neuropsychology
- Vol. 12 (5), 812-816
- https://doi.org/10.1080/01688639008401022
Abstract
Handedness inventory data are peculiarly prone to be used to classify subjects in a post hoc fashion. Data from a computer simulation are used to show that if this procedure is adopted, significance levels can be seriously misleading: under certain conditions the odds of obtaining “significant” results by chance are as high as 2:3. Specification of cutoffs after inspection of the data is probably the most important source of spurious associations between handedness and disorder.Keywords
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