On the white, the black, and the many shades of gray in between: Our reply to van Ravenzwaaij and Wagenmakers (2021)

In 2019 we wrote a paper (Tendeiro & Kiers, 2019) in Psychological Methods over null hypothesis Bayesian testing and its working horse, the Bayes factor. Recently, van Ravenzwaaij and Wagenmakers (2021) offered a response to our piece, also in this journal. Although we do welcome their contribution with thought-provoking remarks on our paper, we ended up concluding that there were too many ‘issues’ in van Ravenzwaaij and Wagenmakers (2021) that warrant a rebuttal. In this paper we both defend the main premises of our original paper and we put the contribution of van Ravenzwaaij and Wagenmakers (2021) under critical appraisal. Our hope is that this exchange between scholars decisively contributes towards a better understanding among psychologists of null hypothesis Bayesian testing in general and of the Bayes factor in particular.