Dr Richard Morey

Reader

School of Psychology

: moreyr@cardiff.ac.uk
: +44 (0)29 2087 4729
: Tower Building, 70 Park Place, Cardiff, CF10 3AT

: Available for postgraduate supervision

Research summary

My primary lines of research is applied statistics. I am interested in statistical modeling (in particular cognitive modeling), statistical cognition, and the philosophy of statistics. I am broadly interested in how researchers understand and use statistics, and how their use of data and statistics can be improved.

I also author scientific software (see my GitHub page for details).

Teaching summary

I teach reasoning and decision making at the undergraduate level, and research methods and applied statistics at both the undergraduate and postgraduate level. I also regularly give workshops on statistical topics, such as Bayesian methods.

Please see my website or my Curriculum Vitae.

Honours and awards

Awards/external committees

coming soon

2023

Rouder, J. N., Schnuerch, M., Haaf, J. M. and Morey, R. D. 2023. Principles of model specification in ANOVA designs. Computational Brain & Behavior 6(1), pp. 50-63. (10.1007/s42113-022-00132-7)
van Doorn, J. et al. 2023. Bayes factors for mixed models: A discussion. Computational Brain & Behavior (10.1007/s42113-022-00160-3)

2022

Morey, R. D. et al. 2022. A pre-registered, multi-lab non-replication of the Action-sentence Compatibility Effect (ACE). Psychonomic Bulletin and Review 29, pp. 613-626. (10.3758/s13423-021-01927-8)
Gerson, S., Morey, R. and van Schaik, J. 2022. Coding in the cot? Factors influencing 0-17s’ experiences with technology and coding in the United Kingdom. Computers and Education 178, article number: 104400. (10.1016/j.compedu.2021.104400)

2021

Shiffrin, R. M. et al. 2021. Extraordinary claims, extraordinary evidence? A discussion. Learning and Behavior 49(3), pp. 265-275. (10.3758/s13420-021-00474-5)
Proulx, T. and Morey, R. 2021. Beyond statistical ritual: theory in psychological science. Perspectives on Psychological Science 16(4), pp. 671-681. (10.1177/17456916211017098)

2020

Aczel, B. et al. 2020. Discussion points for Bayesian inference. Nature Human Behaviour 4, pp. 561-563. (10.1038/s41562-019-0807-z)

2019

Rouder, J. N. and Morey, R. D. 2019. Teaching Bayes' Theorem: strength of evidence as predictive accuracy. The American Statistician 73(2), pp. 186-190. (10.1080/00031305.2017.1341334)
van Dongen, N. N. N. et al. 2019. Multiple perspectives on inference for two simple statistical scenarios. American Statistician 73(s1), pp. 328-339. (10.1080/00031305.2019.1565553)

2018

Monden, R., Roest, A. M., van Ravenzwaaij, D., Wagenmakers, E., Morey, R., Wardenaar, K. J. and de Jonge, P. 2018. The comparative evidence basis for the efficacy of second-generation antidepressants in the treatment of depression in the US: A Bayesian meta-analysis of Food and Drug Administration reviews. Journal of Affective Disorders 235, pp. 393-398. (10.1016/j.jad.2018.04.040)
Morey, R., Homer, S. and Proulx, T. 2018. Beyond statistics: accepting the null hypothesis in mature sciences. Advances in Methods and Practices in Psychological Science 1(2), pp. 245-258. (10.1177/2515245918776023)

2017

Sense, F., Morey, C. C., Prince, M., Heathcote, A. and Morey, R. D. 2017. Opportunity for verbalization does not improve visual change detection performance: a state-trace analysis. Behavior Research Methods 49(3), pp. 853-862. (10.3758/s13428-016-0741-1)
Jamil, T., Ly, A., Morey, R. D., Love, J., Marsman, M. and Wagenmakers, E. 2017. Default "Gunel and Dickey" Bayes factors for contingency tables. Behavior Research Methods 49(2), pp. 638-652. (10.3758/s13428-016-0739-8)
Marsman, M., Shonbrodt, F. D., Morey, R. D., Yao, Y., Gelman, A. and Wagenmakers, E. 2017. A Bayesian bird's eye view of 'replications of important results in social psychology'. Royal Society Open Science 4(1), article number: 160426. (10.1098/rsos.160426)

2016

Rouder, J. N., Engelhardt, C. R., McCabe, S. and Morey, R. D. 2016. Model comparison in ANOVA. Psychonomic Bulletin & Review 23(6), pp. 1779-1786. (10.3758/s13423-016-1026-5)
Rouder, J. N., Morey, R. D., Verhagen, J., Province, J. M. and Wagenmakers, E. 2016. Is There a Free Lunch in Inference?. Topics in Cognitive Science 8(3), pp. 520-547. (10.1111/tops.12214)
Morey, R. D., Romeijn, J. and Rouder, J. N. 2016. The philosophy of Bayes factors and the quantification of statistical evidence. Journal of Mathematical Psychology 72, pp. 6-18. (10.1016/j.jmp.2015.11.001)
Wagenmakers, E., Morey, R. D. and Lee, M. D. 2016. Bayesian benefits for the pragmatic researcher. Current Directions In Psychological Science 25(3), pp. 169-176. (10.1177/0963721416643289)
Davis-Stober, C. P., Morey, R. D., Gretton, M. and Heathcote, A. 2016. Bayes factors for state-trace analysis. Journal of Mathematical Psychology 72, pp. 116-129. (10.1016/j.jmp.2015.08.004)
Morey, R. D., Hoekstra, R., Rouder, J. N., Lee, M. D. and Wagenmakers, E. 2016. The fallacy of placing confidence in confidence intervals. Psychonomic Bulletin and Review 23(1), pp. 103-123. (10.3758/s13423-015-0947-8)
Morey, R. D., Hoekstra, R., Rouder, J. N. and Wagenmakers, E. 2016. Continued misinterpretation of confidence intervals: response to Miller and Ulrich. Psychonomic Bulletin & Review 23(1), pp. 131-140. (10.3758/s13423-015-0955-8)
Morey, R. D. et al. 2016. The Peer Reviewers' Openness Initiative: incentivizing open research practices through peer review. Royal Society Open Science 3(1), article number: 150547. (10.1098/rsos.150547)
Morey, R. D., Wagenmakers, E. and Rouder, J. N. 2016. Calibrated Bayes factors should not be used: a reply to Hoijtink, van Kooten, and Hulsker. Multivariate Behavioral Research 51(1), pp. 11-19. (10.1080/00273171.2015.1052710)

2015

Morey, C., Cong, Y., Zheng, Y., Price, M. and Morey, R. D. 2015. The color-sharing bonus: roles of perceptual organization and attentive processes in visual working memory. Archives of Scientific Psychology 3(1), pp. 18-29. (10.1037/arc0000014)

2014

Hoekstra, R., Morey, R. D., Rouder, J. N. and Wagenmakers, E. 2014. Robust misinterpretation of confidence intervals. Psychonomic Bulletin & Review 21(5), pp. 1157-1164. (10.3758/s13423-013-0572-3)
Morey, R. D. and Wagenmakers, E. 2014. Simple relation between Bayesian order-restricted and point-null hypothesis tests. Statistics & Probability Letters 92, pp. 121-124. (10.1016/j.spl.2014.05.010)
Morey, R. D., Rouder, J. N., Verhagen, J. and Wagenmakers, E. 2014. Why hypothesis tests are essential for psychological science: a comment on Cumming (2014). Psychological Science 25(6), pp. 1289-1290. (10.1177/0956797614525969)
Elliott, E. M., Morey, C., Morey, R. D., Eaves, S. D., Shelton, J. T. and Lutfi-Proctor, D. A. 2014. The role of modality: auditory and visual distractors in Stroop interference. Journal of Cognitive Psychology 26(1), pp. 15-26. (10.1080/20445911.2013.859133)

2013

Morey, C. C., Morey, R. D., van der Reijden, M. and Holweg, M. 2013. Asymmetric cross-domain interference between two working memory tasks: implications for models of working memory. Journal of Memory and Language 69(3), pp. 324-348. (10.1016/j.jml.2013.04.004)
Morey, R. D. 2013. The consistency test does not - and cannot - deliver what is advertised: a comment on Francis (2013). Journal of Mathematical Psychology 57(5), pp. 180-183. (10.1016/j.jmp.2013.03.004)
de Vries, R. M. and Morey, R. D. 2013. Bayesian hypothesis testing for single-subject designs. Psychological Methods 18(2), pp. 165-185. (10.1037/a0031037)
Morey, R. D., Romeijn, J. and Rouder, J. N. 2013. The humble Bayesian: Model checking from a fully Bayesian perspective. British Journal of Mathematical and Statistical Psychology 66(1), pp. 68-75. (10.1111/j.2044-8317.2012.02067.x)
Rouder, J. N., Morey, R. D. and Province, J. M. 2013. A Bayes factor meta-analysis of recent extrasensory perception experiments: comment on Storm, Tressoldi, and Di Risio (2010). Psychological Bulletin 139(1), pp. 241-247. (10.1037/a0029008)

2012

Rouder, J. N., Morey, R. D., Speckman, P. L. and Province, J. M. 2012. Default Bayes factors for ANOVA designs. Journal of Mathematical Psychology 56(5), pp. 356-374. (10.1016/j.jmp.2012.08.001)
Morey, R. D., Morey, C. C., Brisson, B. and Tremblay, S. 2012. A critical evaluation of c as a measure of mnemonic resolution. Journal of Experimental Psychology: Human Perception and Performance 38(4), pp. 1069-1072. (10.1037/a0027335)
Rouder, J. N. and Morey, R. D. 2012. Default Bayes factors for model selection in regression. Multivariate Behavioral Research 47(6), pp. 877-903. (10.1080/00273171.2012.734737)

2011

Morey, R. D. and Morey, C. C. 2011. WoMMBAT: a user interface for hierarchical Bayesian estimation of working memory capacity. Behavior Research Methods 43(4), pp. 1044-1065. (10.3758/s13428-011-0114-8)
Morey, R. D. and Rouder, J. N. 2011. Bayes factor approaches for testing interval null hypotheses. Psychological Methods 16(4), pp. 406-419. (10.1037/a0024377)
Morey, R. D., Rouder, J. N., Pratte, M. S. and Speckman, P. L. 2011. Using MCMC chain outputs to efficiently estimate Bayes factors. Journal of Mathematical Psychology 55(5), pp. 368-378. (10.1016/j.jmp.2011.06.004)
Rouder, J. N. and Morey, R. D. 2011. A Bayes factor meta-analysis of Bem's ESP claim. Psychonomic Bulletin and Review 18(4), pp. 682-689. (10.3758/s13423-011-0088-7)
Rouder, J. N., Morey, R. D., Morey, C. C. and Cowan, N. 2011. How to measure working memory capacity in the change detection paradigm. Psychonomic Bulletin and Review 18(2), pp. 324-330. (10.3758/s13423-011-0055-3.)
Morey, C. C., Cowan, N., Morey, R. D. and Rouder, J. N. 2011. Flexible attention allocation to visual and auditory working memory tasks: manipulating reward induces a trade-off. Attention Perception & Psychophysics 73(2), pp. 458-472. (10.3758/s13414-010-0031-4)
Morey, R. D. 2011. A Bayesian hierarchical model for the measurement of working memory capacity. Journal of Mathematical Psychology 55(1), pp. 8-24. (10.1016/j.jmp.2010.08.008)

2010

Pratte, M. S., Rouder, J. N., Morey, R. D. and Feng, C. 2010. Exploring the differences in distributional properties between Stroop and Simon effects using delta plots. Attention, Perception, & Psychophysics 72(7), pp. 2013-2025. (10.3758/APP.72.7.2013)
Rouder, J. N., Pratte, M. S. and Morey, R. D. 2010. Latent mnemonic strengths are latent: a comment on Mickes, Wixted, and Wais (2007). Psychonomic Bulletin & Review 17(3), pp. 427-435. (10.3758/PBR.17.3.427)
Pratte, M. S., Rouder, J. N. and Morey, R. D. 2010. Separating mnemonic process from participant and item effects in the assessment of ROC asymmetries. Journal of Experimental Psychology: Learning, Memory, and Cognition 36(1), pp. 224-232. (10.1037/a0017682)

2009

Morey, R. D., Rouder, J. N. and Speckman, P. L. 2009. A truncated-probit item response model for estimating psychophysical thresholds. Psychometrika 74(4), pp. 603-618. (10.1007/s11336-009-9122-3)
Rouder, J. N. and Morey, R. D. 2009. The nature of psychological thresholds. Psychological Review 116(3), pp. 655-660. (10.1037/a0016413)
Rouder, J. N., Speckman, P. L., Sun, D., Morey, R. D. and Iverson, G. 2009. Bayesian t tests for accepting and rejecting the null hypothesis. Psychonomic Bulletin and Review 16(2), pp. 225-237. (10.3758/PBR.16.2.225)

2008

Morey, R. D., Pratte, M. S. and Rouder, J. N. 2008. Problematic effects of aggregation in zROC analysis and a hierarchical modeling solution. Journal of Mathematical Psychology 52(6), pp. 376-388.
Speckman, P. L., Rouder, J. N., Morey, R. D. and Pratte, M. S. 2008. Delta plots and coherent distribution ordering. American Statistician 62(3), pp. 262-266. (10.1198/000313008X333493)
Rouder, J. N., Lu, J., Morey, R. D., Sun, D. and Speckman, P. L. 2008. A hierarchical process-dissociation model. Journal of Experimental Psychology: General 137(2), pp. 370-389. (10.1037/0096-3445.137.2.370)
Rouder, J. N., Morey, R. D., Cowan, N., Zwilling, C. E., Morey, C. C. and Pratte, M. S. 2008. An assessment of fixed-capacity models of visual working memory. Proceedings of the National Academy of Sciences of the United States of America 105(16), pp. 5975-5979. (10.1073/pnas.0711295105)
Morey, R. D., Rouder, J. N. and Speckman, P. L. 2008. A statistical model for discriminating between subliminal and near-liminal performance. Journal of Mathematical Psychology 52(1), pp. 21-36. (10.1016/j.jmp.2007.09.007)

2007

Rouder, J. N., Lu, J., Sun, D., Speckman, P., Morey, R. D. and Naveh-Benjamin, M. 2007. Signal detection models with random participant and item effects. Psychometrika 72(4), pp. 621-642. (10.1007/s11336-005-1350-6)
Rouder, J. N., Morey, R. D., Speckman, P. L. and Pratte, M. S. 2007. Detecting chance: a solution to the null sensitivity problem in subliminal priming. Psychonomic Bulletin and Review 14(4), pp. 597-605.

2005

Rouder, J. N. and Morey, R. D. 2005. Relational and arelational confidence intervals - a comment on Fidler, Thomasow, Cumming, Finch, and Leeman (2004). Psychological Science 16(1), pp. 77-79.

2004

Rouder, J. N., Morey, R. D., Cowan, N. and Pfaltz, M. 2004. Learning in a unidimensional absolute identification task. Psychonomic Bulletin and Review 11(5), pp. 938-944. (10.3758/BF03196725)

Training

MA, Cognition and Neuroscience (University of Missouri, 2003)
MA, Statistics (University of Missouri, 2008)
PhD, Congition and Neuroscience (University of Missouri, 2008)
University Teaching Qualification (University of Groningen, 2014)

Current School of Psychology modules taught

Undergraduate

Psychological Research Skills (Coordinator)
Thinking, Emotion, and Consciousness
Research practical, Year 2 (Social Psychology)

Postgraduate

Research Design and Statistics I (Coordinator)
Research Design and Statistics II (Coordinator)

Workshops offered

Practical Bayesian statistics
Bayes factors in practice
R for data analysis

Past modules taught

Introduction to Statistics (Coordinator; Undergraduate Year 1, University of Groningen)
Programming for Psychologists (Coordinator; Undergraduate Year 3, University of Groningen)
Statistics for postgraduates (Coordinator; Postgraduates, University of Groningen)
Research Methods II (Coordinator; Undergraduate students, University of Missouri)

Research topics and related papers

Statistical cognition: Morey and Hoekstra (preprint), "Use of significance test logic by scientists in a novel reasoning task"
Statistics: Rouder et al (2012), "Default Bayes factors for ANOVA designs"
Philosophy of Statistics: Morey et al (2016), "The fallacy of placing confidence in confidence intervals"
Statistical practice: van Dongen et al (2019), "Multiple perspectives on inference for two simple statistical scenarios"
Cognitive modeling: Morey et al (2009), "A truncated-probit item response model for estimating psychophysical thresholds"

Research group

Cognitive science

Research collaborators

Postgraduate research interests

If you are interested in applying for a PhD, or for further information regarding my postgraduate research, please contact me directly (contact details available on the 'Overview' page), or submit a formal application.