No Evidence That Lateral Preferences Predict Individual Differences in the Tendency to Update Mental Representations: A Replication-Extension Study

摘要: A growing body of evidence suggests that inconsistent hand preference is indicative an increased disposition to update one’s beliefs upon exposure novel information. This attributed a facilitated exchange information between the two brain hemispheres among handers, compared consistent handers. Currently available studies provide only indirect for such effect, were mostly based on small sample sizes, and did not measures effect size. Small size major factor contributing low replicability research findings false-positive results. We thus attempted replicate Experiment 1 Westfall, Corser Jasper (2014), which appears be representative degree handedness belief updating in terms employed methods. utilized data from more than 10 times (N = 1243) original study contrasted commonly applied median-split technique classify handers with empirically grounded classification scheme. Following replication-extension approach, besides handedness, footedness was also explored. Only one out 12 chi-squared tests reached significance supported hypothesis stay with, or switch often from, status quo depending valence small-telescopes analysis suggested had too analytic power detect its reported reliably. These results cast doubt assumption consistent-handers differ tendency mental representations. discuss use research, neuroscientific interhemispheric interaction venues future research.