We are Tilburg University

We are Tilburg University

Bio

I’m Marjan Bakker and I’m an assistant professor at the Methods and Statistics department at Tilburg University. I want to improve science by investigating problems and possible solutions. I’m interested in reporting errors, the use of questionable research practices, statistical power, outliers in data, publication bias, and preregistration. Currently, I’m mainly working on some larger projects on preregistration and on a project to replicate Mahoney’s seminal study on publication bias (for which we got a NWO replication grant).

I also teach courses on regression analysis to psychology students (bachelor) and multilevel analysis to students from the research master and I like to work together with researchers from other departments.

Courses

Recent publications

  1. Group and individual change in cognitive functioning in patients with…

    Schimmel, W., Verhaak, E., Bakker, M., Hanssens, P. E. J., Sitskoorn, M., & Gehring, K. (Accepted/In press). Group and individual change in cognitive functioning in patients with 1-10 brain metastases following Gamma Knife radiosurgery. Clinical Oncology.
  2. Ensuring the quality and specificity of preregistrations

    Bakker, M., Veldkamp, C. L. S., Assen, M. A. L. M. V., Crompvoets, E. A. V., Ong, H. H., Nosek, B. A., Soderberg, C. K., Mellor, D., Wicherts, J. M., & Bero, L. (Ed.) (2020). Ensuring the quality and specificity of preregistrations. PLOS Biology, 18(12), [e3000937].
  3. Ensuring the quality and specificity of preregistrations (Dataset)

    Bakker, M. (Author), Veldkamp, C. L. S. (Author), Assen, M. A. L. M. V. (Author), Crompvoets, E. A. V. (Author), Ong, H. H. (Author), Nosek, B. A. (Author), Soderberg, C. K. (Author), Mellor, D. (Author), Wicherts, J. M. (Author), & Bero, L. (Author). (2020). Ensuring the quality and specificity of preregistrations (Dataset). Data set/Database, OSF. https://osf.io/fgc9k/
  4. Improving the quality and specificity of preregistration

    Bakker, M. (Author). (2020). Improving the quality and specificity of preregistration. Web publication/site, Center for Open Science (COS). https://www.cos.io/blog/improving-the-quality-and-specificity-of-preregistration
  5. Recommendations in pre-registrations and internal review board propos…

    Bakker, M., Veldkamp, C. L. S., van den Akker, O. R., van Assen, M. A. L. M., Crompvoets, E., Ong, H. H., & Wicherts, J. M. (2020). Recommendations in pre-registrations and internal review board proposals promote formal power analyses but do not increase sample size. PLoS ONE, 15(7), [e0236079].

Find an expert or expertise