Dr. Raphael Hartmann

Dr. Raphael Hartmann

Dr. Raphael Hartmann

University of Freiburg
Institute for Psychology
Engelbergerstraße 41
79085 Freiburg

Dr. Raphael Hartmann successfully completed the SMiP program. Since February 2021 he holds a postdoctoral researcher position at the University of Freiburg.

Primary Advisor: Prof. Dr. Andrea Kiesel (University of Freiburg)

Additional Supervisors: Prof. Dr. Christoph Klauer, Prof. Jeffrey Rouder, Ph.D.

Dissertation Proposal: Response time extended multinominial processing trees – implementation in R, evaluation, model comparison, and validation

  • Research Areas

    • Multinomial Processing Tree Models
    • Item Response Theory
  • Teaching (SMIP)

    • Workshop „Multinomial processing tree models with reaction times“ (together with Karl Christoph Klauer)
  • Publications

    Hartmann, R. (2021). Facilitating the use of and extending the RT-MPT model class (unpublished doctoral dissertation). University of Freiburg, Freiburg.

    Hartmann, R., Johannsen, L., & Klauer, K.C. (2020). rtmpt: An R package for fitting response-time extended multinomial processing tree models. Behavior Research Methods, 52, 1313–1338. https://doi.org/10.3758/s13428–019-01318-x

    Hartmann, R., & Klauer, K. C. (2020). Extending RT-MPTs to enable equal process times. Journal of Mathematical Psychology, 96, 102340. https://doi.org/10.1016/j.jmp.2020.102340

  • Talks

    Hartmann, R. , Klauer, K. C., & Johannsen, L. (2019). Response time extended multinomial processing trees in R. In 50th Meeting of the European Mathematical Psychology Group (EMPG), Heidelberg.

    Hartmann, R. (2019, June). Response time extended multinomial processing tree (RT-MPT) models in R. Talk given at the 34th IOPS/SMiP Summer Conference, Utrecht, the Netherlands.

  • Posters

    Hartmann, R. (2018, March 11–14). Recovering Rasch model parameters when the true latent traits are not normally distributed: Comparison of Bayesian and likelihood-based approaches [Poster presentation]. 60. Tagung experimentell arbeitender Psychologen, Marburg, Germany.