The lack of reproducibility of scientific studies has caused growing concern over the credibility
of claims of new discoveries based on ‘statistically significant’findings. There has been …

Twenty-nine teams involving 61 analysts used the same data set to address the same
research question: whether soccer referees are more likely to give red cards to dark-skin-toned …

Transparency, openness, and reproducibility are readily recognized as vital features of science
( 1 , 2 ). When asked, most scientists embrace these features as disciplinary norms and …

Being able to replicate scientific findings is crucial for scientific progress 1 , 2 , 3 , 4 , 5 , 6 , 7
, 8 , 9 , 10 , 11 , 12 , 13 , 14 – 15 . We replicate 21 systematically selected experimental …

… In part II of this series (Wagenmakers et al. this issue) we introduce JASP (https://jasp-stats.org/;
JASP Team, 2016), a free and open-source program with a graphical user interface …

… To contrast our results with those reported by Wagenmakers et al. (2015), we have set the
Cauchy prior width to its JASP default r = 0.707 instead of Jeffreys’s value r = 1. We have also …

According to the facial feedback hypothesis, people’s affective responses can be influenced
by their own facial expression (eg, smiling, pouting), even when their expression did not …

… Correspondence concerning this article can be addressed to E.-J. Wagenmakers, Department
of Psychology, University of Amsterdam, Roetersstraat 15, 1018 WB Amsterdam, The …

Improving the reliability and efficiency of scientific research will increase the credibility of the
published scientific literature and accelerate discovery. Here we argue for the adoption of …

In the field of psychology, the practice ofp value null-hypothesis testing is as widespread as
ever. Despite this popularity, or perhaps because of it, most psychologists are not aware of …