How to increase your chances of obtaining a significant association between handedness and disorder.

Journal article

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.

Authors: Bishop, D

• Publication status: Published
• Journal: Journal of clinical and experimental neuropsychology
• Volume: 12
• Issue: 5
• Pages: 812-816
• Publication date: 1990-10-01
• DOI: 10.1080/01688639008401022
• EISSN: 1744-411X
• ISSN: 1380-3395
• Language: English
• Keywords: Computer Simulation; Dyslexia; Neuropsychological Tests; Child; Functional Laterality; Humans; Bias (Epidemiology); Psychometrics; Software; Developmental Disabilities