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Romeijn, Prof. Jan-Willem

Jan-Willem Romeijn
Jan-Willem Romeijn

Jan-Willem Romeijn (1975) is professor of Philosophy of Science. He studied physics and philosophy in Utrecht. He graduated with honours in both degree programmes. In 2005 he was awarded a PhD with honours by the University of Groningen, Faculty of Philosophy, with a thesis on inductive reasoning. Romeijn’s research concentrates on chance, probability theory, philosophy of science and psychological measurement theory. He also teaches course units on subjects such as philosophy of science and philosophy of physics.

In 2009 Romeijn was voted Lecturer of the Year at the University of Groningen. In 2010 he was awarded a Vidi grant by the Netherlands Organisation for Scientific Research (NWO). These grants are intended to help talented researchers develop their own line of research and set up their own research group. Romeijn intends to use the grant to research the nature of probability and the statistical methodologies used in science and business to calculate odds.

According to philosopher of science Romeijn, the controversial ‘discovery’ by CERN of neutrinos that travel faster than light will certainly result in valuable insights. If the findings are right, important scientific insights will have to be adapted. If they are not, they will form interesting study material for philosophers of science. Read his article:  ‘Measurement error or not, CERN neutrino research provides valuable insights’ .

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Beijers, L., van Loo, H. M., Romeijn, J-W., Lamers, F., Schoevers, R. A., & Wardenaar, K. J. (2020). Investigating data-driven biological subtypes of psychiatric disorders using specification-curve analysis. Psychological Medicine, 1-12.
Romeijn, J-W., & Loo, van, H. (2020). Psychiatric classification: an a-reductionist perspective. Manuscript submitted for publication. In K. S. Kendler, J. Parnas, & P. Zachar (Eds.), Levels of Analysis in Psychopathology: Cross-Disciplinary Perspectives (1 ed., pp. 349-370). Cambridge University Press.


van Loo, H. M., Romeijn, J-W., & Kendler, K. S. (2019). Changing The Definition Of The Kilogram: Insights For Psychiatric Disease Classification. Philosophy psychiatry & psychology, 26(4), E97-E108.
Heesen, R., & Romeijn, J-W. (2019). Epistemic Diversity and Editor Decisions: A Statistical Matthew Effect. Philosophers' Imprint, 19(39), 1-20.
Romeijn, J-W., Heesen, R., & Siebe, H. (2019). Laat het oor niet hangen naar een televisiepresentator. Sociale Vraagstukken.
van Loo, H. M., & Romeijn, J-W. (2019). What's in a model? Network models as tools instead of representations of what psychiatric disorders really are. Behavioral and Brain Sciences, 42, [30].


Romeijn, J-W., & Roy, O. (2018). All agreed: Aumann meets DeGroot. Theory and Decision, 85(1), 41-60.
Romeijn, J-W., & Williamson, J. (2018). Intervention and Identifiability in Latent Variable Modelling. Minds and machines, 28(2), 243-264.


Van Loo, H. M., & Romeijn, J. -W. (2018). Measuring and defining: the double role of the DSM criteria for psychiatric disorders. Psychological Medicine, 48(5), 872-873.
Massimi, M., Romeijn, J-W., & Schurz, G. (Eds.) (2017). EPSA15 selected papers: The 5th conference of the European Philosophy of Science Association in Düsseldorf. (European Studies in Philosophy of Science; Vol. 5). Springer.
Romeijn, J. (2017). Inherent Complexity: A Problem for Statistical Model Evaluation. Philosophy of Science, 84(5), 797-809.
Romeijn, J. (2017). Statistics as logic: Commentary on Gelman and Hennig. Journal of the Royal Statistical Society. Series A: Statistics in Society, 180(4), 118-119.
Romeijn, J. (2017). Zelfoverschatting. In M. Geels, & T. van Opijnen (Eds.), Nederland in Ideeën Maven Publishing.


Peeters, J., & Romeijn, J-W. (2016). Epistemic considerations about uncertainty and model selection in computational archaeology: A case study on exploratory modeling. In M. Brouwer Burg, H. Peeters, & W. Lovis (Eds.), Uncertainty and Sensitivity Analysis in Archaeological Computational Modeling (pp. 37-58). (Interdisciplinary Contributions to Archaeology ). Springer.
Wenmackers, S., & Romeijn, J-W. (2016). New Theory about Old Evidence: A framework for open-minded Bayesianism. Synthese, 193(4), 1225-1250.
Romeijn, J. (2016). Preface. In Logic of Statistical Inference (2 ed.). (Cambridge Philosophy Classics). Cambridge University Press.
van Loo, H. M., Schoevers, R. A., Kendler, K. S., de Jonge, P., & Romeijn, J-W. (2016). Psychiatric comorbidity does not only depend on diagnostic thresholds: an illustration with major depressive disorder and generalized anxiety disorder. Depression and Anxiety, 33(2), 143-152.
Romeijn, J., Morey, R., & Rouder, J. N. (2016). The philosophy of Bayes’ factors and the quantification of statistical evidence. Journal of Mathematical Psychology, 72, 6–18.
Romeijn, J., & van Loo, H. (2016). Van realisme of constructivisme naar conventionalisme in de psychiatrie. Wijsgerig Perspectief, 56(3), 24–31.
Romeijn, J-W. (2016). Wetenschapsfilosofie als grensganger. Algemeen Nederlands tijdschrift voor wijsbegeerte, 108(4), 509–513.


Fried, E. I., Boschloo, L., van Borkulo, C. D., Schoevers, R. A., Romeijn, J-W., Wichers, M., de Jonge, P., Nesse, R. M., Tuerlinckx, F., & Borsboom, D. (2015). Commentary: "Consistent Superiority of Selective Serotonin Reuptake Inhibitors Over Placebo in Reducing Depressed Mood in Patients with Major Depression". Frontiers in Psychiatry, 6(117), [117].
Romeijn, J. (2015). De Wetenschapsvisie: eenzijdig en Marxistisch.
van Loo, H., & Romeijn, J. (2015). Psychiatric comorbidity: fact or artifact? Theoretical medicine and bioethics, 36(1), 41-60.


Romeijn, J-W. (2014). Humanities’ New Methods: a reconnaissance mission. In R. Bod, J. Maat, & T. Weststeijn (Eds.), Making of the Humanities III (pp. 527-539). Amsterdam University Press.
Romeijn, J-W. (2014). Onwetendheid. In M. Geels, & T. van Opijnen (Eds.), Dit wil je weten (pp. 210-213). Maven Publishing.
Romeijn, J-W. (2014). Philosophy of Statistics. In E. N. Zalta (Ed.), The Stanford Encyclopedia of Philosophy (pp. 1-86)
Romeijn, J-W., & Roy, O. (2014). Radical Uncertainty: Beyond Probabilistic Models of Belief. Erkenntnis, 79(6), 1221-1223.


Romeijn, J-W. (2013). Abducted by Bayesians? Journal of Applied Logic, 11(4), 430-439.
Romeijn, J. W., van den Heuvel, E. R., & Wit, E. C. (Eds.) (2013). "All Models are Wrong...". Statistica Neerlandica, 66(3).
Romeijn, J-W. (2013). De calculerende burger. In M. Geels, & T. van Opijnen (Eds.), Nederland in ideee╠łn: 101 denkers over inzichten en innovaties die ons land verander(d)en (pp. 288-291). Maven Publishing.
Romeijn, J-W. (2013). De ideeënmotor voor de wetenschap. De Groene Amsterdammer.
Romeijn, J-W., Sterkenburg, T., & Grünwald , P. (2013). Good listeners, wise crowds, and parasitic experts. Analyse & Kritik, 34(2), 399-409.
van Loo, H. M., Romeijn, J-W., de Jonge, P., & Schoevers, R. A. (2013). Psychiatric comorbidity and causal disease models. Preventive Medicine, 57(6), 748-752.
Morey, R. D., Romeijn, J-W., & Rouder, J. N. (2013). The humble Bayesian: Model checking from a fully Bayesian perspective. British Journal of Mathematical and Statistical Psychology, 66(1), 68-75.
Romeijn, J-W., Pacuit, E., & Pedersen, A. P. (2013). When is an example a counterexample? In B. C. Schipper (Ed.), Proceedings of the 14th conference on theoretical aspects of rationality and knowledge : TARK 2013 (pp. 156-165). ACM Press.


van de Schoot, R., Hoijtink, H., Romeijn, J-W., & Brugman, D. (2012). A prior predictive loss function for the evaluation of inequality constrained hypotheses. Journal of Mathematical Psychology, 56(1), 13-23.
Wit, E., van den Heuvel, E., & Romeijn, J-W. (2012). All models are wrong...': an introduction to model uncertainty. Statistica Neerlandica, 66(3), 217-236.
Romeijn, J. W. (2012). Conditioning and Interpretation Shifts. Studia Logica, 100(3), 583-606.
van Loo, H. M., de Jonge, P., Romeijn, J-W., Kessler, R. C., & Schoevers, R. A. (2012). Data-driven subtypes of major depressive disorder: a systematic review. BMC Medicine, 10, [156].
Romeijn, J. W. (2012). One size does not fit all: derivation of a prior-adapted BIC. In D. Dieks, W. Gonzales, S. Hartmann, M. Stöltzner, & M. Weber (Eds.), Probabilities, lws, and structures (pp. 87 - 106). Springer.


Romeijn, J-W., & Douven, I. (2011). A new resolution of the Judy Benjamin problem. Mind, 120(479), 637-670.
van de Schoot, R., Mulder, J., Hoijtink, H., van Aken, M. A. G., Dubas, J. S., de Castro, B. O., Meeus, W., & Romeijn, J-W. (2011). An introduction to Bayesian model selection for evaluating informative hypotheses. European Journal of Developmental Psychology, 8(6), 713-729.
van de Schoot, R., Hoijtink, H., Mulder, J., Van Aken, M. A. G., de Castro, B. O., Meeus, W., & Romeijn, J-W. (2011). Evaluating expectations about negative emotional states of aggressive boys using Bayesian model selection. Developmental Psychology, 47(1), 203-212.
Romeijn, J. W. (2011). Inductive logic and statistics. In D. Gabbay, J. Woods, & S. Hartmann (Eds.), Handbook of the History of Logic: Inductive Logic (pp. 625 - 650). Elsevier.
Romeijn, J. W., & Atkinson, D. (2011). Learning juror competence: a generalized Condorcet Jury Theorem. Philosophy, Politics and Economics, 10(3), 237-262.
Borsboom, D., Wagenmakers, E-J., & Romeijn, J-W. (2011). Mechanistic curiosity will not kill the Bayesian cat. Behavioral and Brain Sciences, 34(4), 192 - 193.
Romeijn, J. W. (2011). (met H. Honing) The Value of Risky Predictions. In R. J. Jorna, K. Liu, & N. Faber (Eds.), Proceedings of the thirteenth International Conference on Informatics and Semiotics in Organisations: Problems and Possibilities of Computational Humanities (pp. 185 - 185). Fryske Akademy-KNAW.
Kieviet, R. A., Romeijn, J. W., Waldorp, L. J., Wicherts, J. M., Scholte, H. S., & Borsboom, D. (2011). Mind the Gap: a psychometric approach to the reduction problem. Psychological Inquiry, 22(2), 67-87. [938337446].
Kievit, R. A., Romeijn, J-W., Waldorp, L. J., Wicherts, J. M., Scholte, H. S., & Borsboom, D. (2011). Modeling Mind and Matter: Reductionism and Psychological Measurement in Cognitive Neuroscience. Psychological Inquiry, 22(2), 139-157. [938333439].
van de Schoot, R., Hoijtink, H. J. A., & Romeijn, J. W. (2011). Moving beyond traditional null hypothesis testing: evaluating expectations directly. Frontiers in Psychology, 2(24), [24].
Romeijn, J. W. (2011). Statistics as inductive logic. In P. S. Bandyopadyay, & M. R. Forster (Eds.), Handbook for the Philosophy of Science: Philosophy of Statistics (pp. 751 - 774). Elsevier.


Romeijn, J. W. (2010). Carnap’s Logical foundations of probability. In J. Williamson, & F. Russo (Eds.), Key Terms in Logic (pp. 161 - 162). Continuum Publishers.
Romeijn, J. W. (2010). Editorial and Interview with members of the Tilburg Centre for Logic and Philosophy of Science. The Reasoner, 4(7), 103 - 106.
Douven, I., Horsten, L., & Romeijn, J-W. (2010). PROBABILIST ANTIREALISM. Pacific Philosophical Quarterly, 91(1), 38-63.
Romeijn, J. W., Haenni, R., Wheeler, G., & Williamson, J. (2010). Probabilistic logic and probabilistic neworks. Springer.


Atkinson, D., & Romeijn, J-W. (2009). A Condorcet Jury Theorem for Unknown Juror Competence. Mathematics.
Romeijn, J. W., Cozman, F., Haenni, R., Russo, F., Wheeler, G., & Williamson, J. (2009). Combining probability and logic. Journal of Applied Logic, 7(2), 131 - 135.
Romeijn, J. W., & Roy, O. (2009). Combining probability and logic. The Reasoner, 3(11), 12 - 12.
Romeijn, J. W., Löwe, B., & Pacuit, E. (2009). Foundations of the Formal Sciences VI: Probabilistic Reasoning and Reasoning with Probabilities. (Studies in Logic Series). College Publications.
Romeijn, J. -W. (2009). Inductive Logic and Statistics. In EPRINTS-BOOK-TITLE University of Groningen.
Romeijn, J-W., Haenni, R., Wheeler, G., & Williamson, J. (2009). Logical relations in a statistical problem. In B. Loewe, & E. Pacuit (Eds.), Foundations of the Formal Sciences VI: Probabilisitic Reasoning and Reasoning with Probabilities. (pp. 49 - 81). (Studies in Logic Series). College Publications.
Haenni, R., Romeijn, J-W., Wheeler, G., & Williamson, J. (2009). Probabilistic Logic and Probabilistic Networks. s.n.
Romeijn, J-W. (2009). Statistics as Inductive Inference. In EPRINTS-BOOK-TITLE University of Groningen.


Romeijn, J-W., & Schoot, R. V. D. (2008). A Philosophical Analysis of Bayesian model selection. In EPRINTS-BOOK-TITLE University of Groningen.
Romeijn, J. W., & van der Schoot, R. (2008). A philosophical foundation of null, alternative and informative hypotheses. In H. Hoijtink, I. Klugkist, & P. Boelen (Eds.), Null, alternative and informative hypotheses (pp. 329 - 357). Springer.
Romeijn, J-W., & Meijs, W. (2008). De Revolutie der probabilisten. Academische Boekengids.
Romeijn, J. W. (2008). Editorial. The Reasoner, 2(9), 1 - 14.
Romeijn, J-W. (2008). Editorial. Reasoner, 9(2).
Romeijn, J. W. (2008). European Summer School on Logic, Language, and Information. The Reasoner, 2(9), 14.
Romeijn, J. W. (2008). Interventies en conceptuele veranderingen. Algemeen Nederlands tijdschrift voor wijsbegeerte, 100(2), 121-128.
Romeijn, J. W. (2008). Interview with Michiel van Lambalgen. The Reasoner, 2(9), 2 - 3.
Romeijn, J-W. (2008). Leibniz, metafysicus van het atoomtijdperk. BRES, (232).
Borsboom, D., Romeijn, J-W., & Wicherts, J. M. (2008). Measurement invariance versus selection invariance: Is fair selection possible? Psychological Methods, 13(2), 75-98.
Haenni, R., Romeijn, J. W., Wheeler, G., & Williamson, J. (2008). Possible semantics for a Common framework of Probabilistic Logics. In V. N. Huynh, Y. Nakamori, H. Ono, J. Lawry, V. Kreinovich, & H. T. Nguyen (Eds.), Interval / probabilistic uncertainty and non-classical logics (pp. 268 - 279). Springer.
Romeijn, J-W. (2008). Review of Maria Carla Galavotti, "Philosophical Introduction to Probability". Studies in history and philosophy of modern physics, 39(1), 225-228.
Romeijn, J. W. (2008). The all-too-flexible abductive method: ATOM's normative status. Journal of clinical psychology, 64(9), 1023-1036.
Romeijn, J-W. (2008). Vouwinstructies: hoe u de lege ruimte weer terug in haar hoes krijgt. In Vijf jaar kunsthuis Syb (Vol. 1: Oriëntatie). (Default journal). Kunsthuis Syb.
Romeijn, J-W. (2008). Waarheid en taal. BRES, (237).
Romeijn, J. W., & Tamminga, A. (2008). *Wetenschapsfilosofie* door Leon Horsten, Igor Douven en Erik Weber. Algemeen Nederlands tijdschrift voor wijsbegeerte, 100, 83-87.


Romeijn, J. W. (2007). Formal epistemology workshop. The Reasoner, 1(3), 10 - 11.
Romeijn, J. W., & Counihan, M. (2007). Madness as Refuge. Simulacrum, 10 - 12.
Romeijn, J. W. (2007). Progic Conference on Combining Probability and Logic. The Reasoner, 1(6), 8 - 8.
Douven, I., & Romeijn, J. W. (2007). The discursive dilemma as a lottery paradox. Economics and Philosophy, 23(3), 301 - 319.


Romeijn, J-W. (2006). Analogical predictions. Erkenntnis, (64), 253-280.


Romeijn, J. W. (2005). Bayesian inductive logic: inductive predictions from statistical hypotheses. s.n.
Romeijn, J. W. (2005). Enantiomorphy and Time. International Studies in the Philosophy of Science, 167(190).
Romeijn, J-W. (2005). Theory change and Bayesian statistical inference. Philosophy of Science, 72(5), 1174-1186.


Romeijn, J-W., & Raak, R. V. (2004). De stemwijzer moet geen schoolmeester zijn. de Volkskrant, Opinie.
Romeijn, J. W. (2004). Hypotheses and inductive Predictions. Synthese, 3, 333 - 364.
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