Olmo van den Akker MSc

Bio

My academic education took place at the University of Amsterdam, where I obtained a Master degree in Behavioral Economics and Game Theory as well as a Research Master degree in Psychology. During my studies I realized that the social sciences are not functioning as well as they should and that there are issues at both the institutional level and at the level of individual researchers. In my PhD-project, I mainly focus on the latter by studying researchers' ideas about nonsignificant results, meta-analytic results, and the complexities of preregistration. Other research interests of mine include evolutionary psychology, human cooperation, and network analysis.

Teaching

In the academic year 2017/2018, I am responsible for the tutorials of the courses 'Techniques of Causal Analysis', and 'Construction and Analysis of Questionnaires'.

Recent publications

1. A many-analysts approach to the relation between religiosity and well…

   Hoogeveen, S., Sarafoglou, A., Aczel, B., Aditya, Y., Alayan, A. J., Allen, P. J., Altay, S., Alzahawi, S., Amir, Y., Anthony, F-V., Appiah, O. K., Atkinson, Q. D., Baimel, A., Balkaya-Ince, M., Balsamo, M., Banker, S., Bartos, F., Becerra, M., Beffara, B., ... Wagenmakers, E-J. (2023). A many-analysts approach to the relation between religiosity and well-being. Religion, Brain & Behavior. Advance online publication.

2. Comparing the prevalence of statistical reporting inconsistencies in …

   Van Aert, R. C. M., Nuijten, M. B., Olsson-Collentine, A., Stoevenbelt, A. H., Van Den Akker, O. R., Klein, R. A., & Wicherts, J. M. (2023). Comparing the prevalence of statistical reporting inconsistencies in COVID-19 preprints and matched controls: a registered report. Royal Society Open Science, 10(8), Article 202326.

3. The Meta-Plot - A graphical tool for interpreting the results of a me…

   Van Assen, M. A. L. M., Van Den Akker, O. R., Augusteijn, H. E. M., Bakker, M., Nuijten, M. B., Olsson-Collentine, A., Stoevenbelt, A. H., Wicherts, J. M., & Van Aert, R. C. M. (2023). The Meta-Plot: A graphical tool for interpreting the results of a meta-analysis. Zeitschrift fur Psychologie / Journal of Psychology, 231(1), 65-78.

4. How do psychology researchers interpret the results of multiple repli…

   van den Akker, O. R., Wicherts, J. M., Alvarez, L. D., Bakker, M., & van Assen, M. A. L. M. (2023). How do psychology researchers interpret the results of multiple replication studies? Psychonomic Bulletin and Review, 30(4), 1609-1620.

5. Selective Hypothesis Reporting in Psychology - Comparing Preregistrat…

   van den Akker, O. R., van Assen, M. A. L. M., Enting, M., de Jonge, M., Ong, H. H., Rüffer, F., Schoenmakers, M., Stoevenbelt, A. H., Wicherts, J. M., & Bakker, M. (2023). Selective Hypothesis Reporting in Psychology: Comparing Preregistrations and Corresponding Publications. Advances in Methods and Practices in Psychological Science, 6(3).