Publications

PhD Thesis (2007)

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Papers on data sharing, human factors in statistics, and science policy:

  • Bakker, M., Wicherts, J. M., Hartgerink, C. H. J., & van der Maas, H. L. J. (in press).Researcher’s intuitions about power in psychological research. Psychological Science. PREPRINT. DATA PACKAGE 
  • Nuijten, M. B., Hartgerink, C.H.J., Van Assen, M. A. L. M., Epskamp, S., & Wicherts, J. M. (in press). The prevalence of statistical reporting errors in psychology (1985-2013). Behaviour Research Methods. LINK. DATA PACKAGE
  • Hartgerink, C. H. J., van Aert, R. C. M., Nuijten, M. B., Wicherts, J. M., & van Assen, M. A. L. (2016). Distributions of p-values smaller than .05 in psychology: What is going on? PeerJ, 4, e1935. LINK. DATA PACKAGE
  • Wicherts, J. M. (2016). Peer review quality and transparency of the peer-review process in open access and subscription journals. PLOS ONE, 11, e0147913. LINK. DATA PACKAGE
  • Sijtsma, K., Veldkamp, C. L. S., & Wicherts, J. M. (2016). Improving the conduct and reporting of statistical analyses in psychology. Psychometrika, 81, 33-38
  • Nuijten, M. B., Assen, M.A.L.M. van, Veldkamp, C.L.S., & Wicherts, J. M. (2015). The Replication Paradox: Combining Studies can Decrease Accuracy of Effect Size Estimates. Review of General Psychology, 19, 172-182. PDF. DATA PACKAGE
  • Veldkamp, C.L.S., Nuijten, M. B., Dominguez-Alvarez, L., Assen, M.A.L.M. van, & Wicherts, J. M. (2014). Statistical Reporting Errors and Collaboration on Statistical Analyses in Psychological Science PloS ONE, 9, e114876. Link PLoS ONE. DATA PACKAGE
  • Assen, M.A.L.M. van, Aert, R.C.M. van, & Wicherts, J. M. (2015). Meta-Analysis Using Effect Size Distributions of Only Statistically Significant Studies.  Psychological Methods, 20, 293-309.  PDF
  • Bakker, M. & Wicherts, J. M. (2014). Outlier removal, sum scores, and the inflation of the type I error rate in independent samples t tests: The power of alternatives and recommendations. Psychological Methods, 19, 409-427. Bakker & Wicherts (in press).
  • Assen, M.A.L.M. van, Aert, R. C. M. van, Nuijten, M. B., & Wicherts, J. M. (2014). Why Publishing Everything Is More Effective than Selective Publishing of Statistically Significant Results PloS ONE, 9, : e84896. Link PLoS ONE
  • Nuijten, M. B., Assen, M.A.L.M. van, Aert, R. C. M. van, & Wicherts, J. M. (2014). Standard analyses fail to show that US studies overestimate effect sizes in softer research Proceedings of the National Academy of Sciences, 111, E712-E713. Link PNAS
  • Wicherts, J. M. & Bakker, M. (2014). Broken windows, mediocre methods, and substandard statistics. Group Processes & Intergroup Relations, 17 PDF. DATA PACKAGE
  • Asendorpf, J. B., Conner, M., De Fruyt, F., De Houwer, J., Denissen, J. J. A., Fiedler, K., Fiedler, S, Funder, D. C., Kliegl, R., Nosek, B. A., Perugini, M., Roberts, B. W., Schmitt, M., van Aken, M. A. G., Weber, H., & Wicherts, J. M. (2013). Recommendations for increasing replicability in psychology European Journal of Psychology, 27, 108-119. Wiley Online Library
  • Bakker, M., van Dijk, A, & Wicherts, J. M., (2012). The rules of the game called psychological science Perspectives on Psychological Science, 7, 543-554. SAGE PPS
  • Wicherts, J. M. & Assen, M.A.L.M. van (2011). Research fraud: Speed up reviews of misconduct Nature, 488, 591 Nature
  • Wicherts, J. M., Kievit, R. A., & Borsboom, D. (2012). Letting the daylight in: Reviewing the reviewers and other ways to maximize transparency in science. Frontiers in Computational Neuroscience Article
  • Wicherts, J.M. & Bakker, M. (2012). Publish (your data) or (let the data) perish! Why not publish your data too? Intelligence,40, 73-76. PDF, the meta-data, and the free data!
  • Wicherts, J. M. (2011). Psychology must learn a lesson from fraud case Nature, 480, 7 Link Nature
  • Wicherts, J. M., Bakker, M. & Molenaar, D. (2011). Willingness to share research data is related to the strength of the evidence and the quality of reporting of statistical results. PLoS ONE Wicherts et al. (2011).
  • Bakker, M. & Wicherts, J. M. (2011). The (mis)reporting of statistical results in psychology journals. Behavior Research Methods, 43, 666-678. PDF
  • Wicherts, J.M. & Bakker, M. The poor availability of research data for reanalysis has just become much poorer. Unpublished. PDF (a shortened version of this paper was published in Nature ).
  • Wicherts, J.M., Borsboom, D., Kats, J., & Molenaar, D. (2006). The poor availability of psychological research data for reanalysis. American Psychologist, 61, 726-728. PDF

Papers related to IQ:

  • Pietschnig, J., Penke, L., Wicherts, J. M., Zeiler, M., & Voracek, M. (2015). Meta-analysis of associations between human brain volume and intelligence differences: How strong are they and what do they mean? Neuroscience & Biobehavioral Reviews, 57, 411-432.
  • Kan, K. J., Wicherts, J. M., Dolan, C. V., & van der Maas, H. L. J. (2013). On the Nature and Nurture of Intelligence and Specific Cognitive Abilities. The More Heritable, the More Culture Dependent. Psychological Science, 24, 2420-2428. Kan_PS2013.pdf
  • Wicherts, J. M., Dolan, C. V., Carlson, J. S., & van der Maas, H. L. J. (2010). Raven’s test performance of sub-Saharan Africans; mean level, psychometric properties, and the Flynn Effect. Learning and Individual Differences, 20, 135-151. PDF
  • Wicherts, J. M., Dolan, C. V., Carlson, J. S., & van der Maas, H. L. J. (2010). Another failure to replicate Lynn’s estimate of the average IQ of sub-Saharan Africans. Learning and Individual Differences, 20, 155-157. PDF
  • Wicherts, J. M., Borsboom, D., & Dolan, C. V. (2010). Why national IQs do not support evolutionary theories of intelligence. Personality and Individual Differences, 48, 91-96. nationalIQPAID.pdf Dataset in SPSS format
  • Wicherts, J. M., Borsboom, D., & Dolan, C. V. (2010). Evolution, brain size, and the national IQ of peoples around 3000 years B.C. [rejoinder to comments] Personality and Individual Differences, 48, 104-106.wichertsPAIDrejoinder.pdf
  • Wicherts, J. M., Dolan, C. V., & Van der Maas, H. L. J. (2010). A systematic literature review of the average IQ of sub-Saharan Africans. Intelligence, 38, 1-20. wicherts2010AFR.pdf
  • Wicherts, J. M., Dolan, C. V., & Van der Maas, H. L. J. (2010). The dangers of unsystematic selection methods and the representativeness of 46 samples of African test-takers [rejoinder to Lynn & Meisenberg, 2010] Intelligence, 38, 30-37. IQrejoinder.pdf
  • Wicherts, J. M., & Johnson, W. (2009). Group differences in the heritability of items and test scores. Proceedings of the Royal Society: B., 276, 2675-2683. wichertsjohnson2009.pdf
  • Wicherts, J.M. (2008). Book review of J.R. Flynn (2007): What is intelligence? Beyond the Flynn Effect. Netherlands Journal of Psychology, 64, 41-43. FlynnRef.pdf
  • Wicherts, J.M., & Wilhelm, O. (2007). What is national g? European Journal of Personality, 21, 763-765.wichertswilhelm2007.pdf
  • Dolan, C. V., Colom, R., Abad, F. J., Wicherts, J. M., Hessen, D. J., & van der Sluis, S. (2006). Multi-group covariance and mean structure modeling of the relationship between WAIS-III common factors and gender and educational attainment in Spain. Intelligence, 34, 193-210 PDF
  • Wicherts, J.M., Dolan, C.V., Hessen, D.J., Oosterveld, P., Baal, G.C.M. van, Boomsma, D.I., & Span, M.M. (2004). Are intelligence tests measurement invariant over time? Investigating the nature of the Flynn effect. Intelligence, 32, 509-537. PDF Lisrel files: zipped
  • Dolan, C. V., Roorda, W., & Wicherts, J. M. (2004). Two failures of Spearman’s hypothesis: The GAT-B in Holland and the JAT in South Africa. Intelligence, 35, 155-173. PDF

Papers on stereotype threat and test anxiety:

  • Flore, P.C. & Wicherts, J. M.(2015). Does stereotype threat influence performance of girls in stereotyped domains? A meta-analysis. Journal of School Psychology, 53, 25-44. PDF. DATA PACKAGE
  • Wicherts, J. M. & Zand Scholten, A. (2013). Comment on “Poverty impedes cognitive function. Science, 342, 1169. PDF
  • Wicherts, J. M. & Zand Scholten, A. (2010). Test anxiety and the validity of cognitive tests: A confirmatory factor analysis perspective and some empirical findings. Intelligence, 38, 169-178. PDF
  • Wicherts, J.M., Dolan, C.V., & Hessen, D.J.(2005). Stereotype threat and group differences in test performance: A question of measurement invariance. Journal of Personality and Social Psychology, 89, 696-716. PDF LISREL FILES: Zipped
  • Wicherts, J.M. (2005). Stereotype threat research and the assumptions underlying analysis of covariance. American Psychologist, 60, 267-269. PDF

Papers on measurement invariance:

  • Wicherts, J. M. & Dolan, C. V. (2010). Measurement invariance in confirmatory factor analysis; An illustration using IQ test performance of minorities Educational Measurement: Issues & Practice, 29, 3, 39-47. PDF Summary statistics
  • Wicherts, J.M., & Millsap, R.E. (2009). The absence of underprediction does not imply the absence of measurement bias. American Psychologist. PDF
  • Borsboom, D., J.W. Romeijn, & Wicherts, J.M. (2008). Measurement invariance versus selection invariance: Is fair selection possible? Psychological Methods, 13, 75-98.PDF

SEM-related topics:

  • 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, 22 139-157. PDF
  • Dolan, C. V., Oort, F. J., Stoel, R. D., & Wicherts, J. M. (2009). Testing Measurement Invariance in the Target Rotated Multigroup Exploratory Factor Model Structural Equation Modeling, 16, 295-314. PDF
  • Molenaar, D., Dolan, C. V., & Wicherts, J. M. (2009). The power to detect sex differences in IQ test scores using multi-group covariance and means structure analyses. Intelligence, 37, 396-404. PDF
  • Hessen, D. J., Dolan, & Wicherts, J. M. (2006). The multi-group common factor model with minimal uniqueness constraints and the power to detect uniform bias. Applied Psychological Measurement, 30, 233-246. PDF
  • Dolan, C.V., Wicherts, J.M., & Molenaar, P.C.M. (2004). A note on the relationship between the number of indicators and their reliability in detecting regression coefficients in latent regression analysis. Structural Equation Modeling, 11, 210-216. PDF
  • Wicherts, J.M., & Dolan, C.V. (2004). A cautionary note on the use of information fit indices in covariance structure modeling with means. Structural Equation Modeling, 11, 45-50. PDF

Miscellaneous topics:

  • Rabelo, A. L. A., Keller, V. N., Pilati, R., & Wicherts, J. M. (2015). No effect of weight on judgments of importance in the moral domain and evidence of publication bias from a meta-analysis. PLOS ONE, 10, e0134808. Link PLOS ONE. DATA PACKAGE
  • Hartgerink, C. H. J., van Beest, I., Wicherts, J. M., & Williams, K. D. (2015). (2014). The Ordinal Effects of Ostracism: A Meta- Analysis of 120 Cyberball Studies PLOS ONE, 10, e0127002. Link PLOS ONE. DATA PACKAGE
  • Nieuwenstein, M. R., Wierenga, T., Morey, R. D., Wicherts, J. M., Blom, T. N., Wagenmakers, E. J., & van Rijn, H. (2015). On making the right choice: A meta-analysis and large-scale replication attempt of the unconscious thought advantage Judgment and Decision Making, 10, 1-17. PDF
  • Morina, N., Wicherts, J. M., Lobbrecht, J. & Priebe, S. (2014). Remission from post-traumatic stress disorder in adults: A systematic review and meta-analysis of long term outcome studies Clinical Psychology Review, 34, 249-255. Link CPR
  • Phaf, R. H., Mohr, S. E., Rotteveel, M., & Wicherts, J. M. (2014). Approach, avoidance, and affect: a meta-analysis of approach-avoidance tendencies in manual reaction time tasks Frontiers in Psychology, 5, 378. Link Frontiers
  • Ter Kuile, H., Veldhuis, M., Veen, S. van, & Wicherts, J. M. (2011). Bilingual education, metalinguistic awareness, and the understanding of an unknown language. Bilingualism: Language and Cognition, 14, 233-242. PDF
  • Smits, I. A. M., Dolan, C. V., Vorst, H. C. M., Wicherts, J. M., & Timmerman, M. E. (2011). Cohort differences in big five personality factors over a period of 25 years. Journal of Personality and Social Psychology, 100, 1124-1138. PDF
  • Wicherts, J. M. & Vorst, H. C. M. (2010). The relation between specialty choice of psychology students and their interests, personality, and cognitive abilities Learning and Individual Differences, 20, 494-500. PDF
  • Wicherts, J. M. (2009). The impact of papers published in Intelligence 1977-2007 and an overview of the citation classics. Intelligence, 37, 443-446. PDF data file
  • De Boo, G. M. & Wicherts, J. M. (2009). Assessing Cognitive and Behavioral Coping Strategies in Children. Cognitive Therapy & Research, 33, 1-20. PDF
  • Wicherts, J.M. (2008). Interesting volume on emotional intelligence, whatever it is. PsycCritiques PDF
  • Beckers, J. J., Wicherts, J. M., & Schmidt, H. G. (2007). Computer anxiety: State or trait? Computers in Human Behavior, 23, 2851-2862. PDF
  • Te Brake, J. H. M., Smits, N., Wicherts, J. M., Gorter, R., & Hoogstraten, J. (2008). Burnout development among dentists: A longitudinal study. European Journal of Oral Sciences, 116, 545-551. PDF
  • Carpenter, D., Janssen, E., Graham, C., Vorst, H., & Wicherts, J. M. (2008). Women’s scores on the Sexual Inhibition/Sexual Excitation Scales (SIS/SES): Gender similarities and differences. Journal of Sex Research, 45, 36-48. PDF
  • Bermond, B., Clayton, K, Liberova, A., Luminet, O, Maruszewski, T., Ricci Bitti, P. E., Rime, B., Vorst, H., Wagner, H., & Wicherts, J. M. (2007). A cognitive and emotional dimension of alexithymia in six languages and seven populations. Cognition and Emotion, 21, 1125-113. Computers in Human Behavior, 23, 2851-2862. PDF
  • Maas, H. L. J. van der, Dolan, C. V., Grasman, R. P. P. P., Wicherts, J. M., Huizenga, H. M., & Raijmakers, M. E. J. (2006). A dynamical model of general intelligence: the positive manifold of intelligence by mutualism. Psychological Review, 113, 842-861. PDF
  • Wicherts, J.M., Vorst, H.C.M. (2004) Modelpassing van de Verkorte Profile of Mood States en meetinvariantie over mannen en vrouwen. Nederlands Tijdschrift voor de Psychologie, 59, 12-21. PDF
  • Here is the full report of our re-analysis of Satoshi Kanazawa’s claims concerning race differences in ratings of attractiveness as reported in Scott Kaufman’s blog
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