Meta-analysis shows positive effects in precognition research across 90 experiments, suggesting notable findings.
I recently read a meta-analysis on precognition studies by Bem, Tressoldi, Rabeyron, and Duggan (available on SSRN). The authors conclude in the abstract: 'We can now report a metaanalysis of 90 experiments from 33 laboratories in 14 different countries which yielded an overall positive effect in excess of 6 sigma with an effect size (Hedges’ g) of 0.09, combined z = 6.33, p = 1.2 ×10^-10). A Bayesian analysis yielded a Bayes Factor of 1.24 ×
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Daniël Lakens (2014) studied this question.
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