Dr. Matthijs J. Warrens
Functie:
- Universitair docent
| Telefoon: | +31 (0)71 527 6696 |
|---|---|
| E-Mail: | m.j.warrens@fsw.leidenuniv.nl |
| Faculteit / Onderdeel: | Faculteit der Sociale Wetenschappen, Instituut Psychologie, Methoden & Technieken |
| Werkadres: |
Pieter de la Court gebouw Wassenaarseweg 52 2333 AK Leiden Kamernummer 3B15A |
| Persoonlijke Homepage: | www.math.leidenuniv.nl/~mwarrens |
Voor meer informatie zieĀ CV of persoonlijke webpagina.
2012
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Warrens, M.J. (2012)
A family of multi-rater kappas that can always be increased and decreased by combining categories. Statistical Methodology, 9, pp. 330-340.
(artikel) -
Warrens, M.J. (2012)
Cohen's quadratically weighted kappa is higher than linearly weighted kappa for tridiagonal agreement tables. Statistical Methodology, 9, pp. 440-444.
(artikel) -
Warrens, M.J. (2012)
Equivalences of weighted kappas for multiple raters. Statistical Methodology, 9, pp. 407-422.
(artikel) -
Warrens, M.J. (2012)
The effect of combining categories on Bennett, Alpert and Goldstein's S. Statistical Methodology, 9, pp. 341-352.
(artikel)
2011
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Warrens, M.J. (2011)
Chance-corrected measures for 2x2 tables that coincide with weighted kappa. British Journal of Mathematical and Statistical Psychology, 64, pp. 355-365.
(artikel) -
Warrens, M.J. (2011)
Cohen's kappa is a weighted average. Statistical Methodology, 8 (6), pp. 473-484.
(artikel) -
Warrens, M.J. (2011)
Cohen's linearly weighted kappa is a weighted average of 2x2 kappas. Psychometrika, 76 (3), pp. 471-486.
(artikel) -
Warrens, M.J. (2011)
Weighted kappa is higher than Cohen's kappa for tridiagonal agreement tables. Statistical Methodology, 8, pp. 268-272.
(artikel)
2010
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Warrens, M.J. (2010)
A Kraemer-type rescaling that transforms the odds ratio into the weighted kappa coefficient. Psychometrika, 75, pp. 328-330.
(artikel) -
Warrens, M.J. (2010)
A formal proof of a paradox associated with Cohen's kappa. Journal of Classification, 27, pp. 322-332.
(artikel) -
Warrens, M.J. (2010)
Cohen's kappa can always be increased and decreased by combining categories. Statistical Methodology, 7, pp. 673-677.
(artikel) -
Heiser, W.J. & Warrens, M.J. (2010)
Families of relational statistics for 2X2 tables. In: Kaul, H. & Mulder, H.M. (Eds.), Advances in Interdisciplinary Applied Discrete Mathematics, pp. 25-52. Singapore: World Scientific.
(boekdeel - hoofdstuk) -
Warrens, M.J. (2010)
Inequalities between kappa and kappa-like statistics for kXk tables. Psychometrika, 75, pp. 176-185.
(artikel) -
Warrens, M.J. (2010)
Inequalities between multi-rater kappas. Advances in Data Analysis and Classification, 4, pp. 271-286.
(artikel) -
Warrens, M.J. (2010)
n-Way metrics. Journal of Classification, 27, pp. 173-190.
(artikel)
2009
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Warrens, M.J. (2009)
A comment on "The J index as a measure of nominal scale response agreement". Applied Psychological Measurement, 33, pp. 486-487.
(artikel) -
Heiser, W.J. & Warrens, M.J. (2009)
Detecting complete positive regression: using the dominant axis of correspondence analysis. Cambridge, England, IMPS 2009, the 74th annual meering of the Psychometric Society.
(voordracht - lezing) -
Warrens, M.J. & Heiser, W.J. (2009)
Diagnostics for regression dependence in tables re-ordered by the dominant correspondence analysis solution. Computational Statistics and Data Analysis, 53, pp. 3139-3144.
(artikel) -
Warrens, M.J. (2009)
On Robinsonian dissimilarities, the consecutive ones property and latent variable models. Advances in Data Analysis and Classification, 3, pp. 169-184.
(artikel) -
Warrens, M.J. (2009)
k-Adic similarity coefficients for binary (presence/absence) data. Journal of Classification, 26, pp. 227-245.
(artikel)
2008
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Warrens, M.J. (2008)
Bounds of resemblance meaures for binary (presence/absence) variables. Journal of Classification, 25, pp. 195-208.
(artikel) -
Heiser, W.J. & Warrens, M.J. (2008)
Horseshoe effects in multiple correspondence analysis: distance transformations that let them disappear. St Louis, CSNA 2008 Annual meeting of the Classification society of North America
(voordracht - lezing) -
Warrens, M.J. (2008)
On association coefficients for 2X2 tables and properties that do not depend on the marginal distributions. Psychometrika, 73, pp. 777-789.
(artikel) -
Warrens, M.J. (2008)
On multi-way metricity, minimality and diagonal planes. Advances in Data Analysis and Classification, 2, pp. 109-119.
(artikel) -
Warrens, M.J. (2008)
On resemblance measures for binary data and correction for maximum value. In: Shigemasu, K, Okada, A, Imaizumi, T, Hoshino, T (Eds.), New trends in psychometrics, pp. 553-558. Tokio: University Academic Press.
(boekdeel - hoofdstuk) -
Warrens, M.J. (2008)
On similarity coefficients for 2x2 tables and correction for chance. Psychometrika, 73, pp. 487-502.
(artikel) -
Warrens, M.J. (2008)
On the equivalence of Cohen's kappa and the Hubert-Arabie adjusted rand index. Journal of Classification, 25, pp. 177-183.
(artikel) -
Warrens, M.J. (2008)
On the indeterminacy of resemblance measures for (presence/absence) data. Journal of Classification, 25, pp. 125-136.
(artikel) -
Heiser, W.J. & Warrens, M.J. (2008)
On the recovery of the consecutive ones property by generalized averaging algorithms. In: Shigemasu, K, Okada, A, Imaizumi, T, hoshino, T (Eds.), New trends in psychometrics., pp. 107-110. Tokio: University Academic Press.
(boekdeel - hoofdstuk) -
Warrens, M.J. (2008)
Similarity coefficients for binary data. Properties of coefficients, coefficient matrices, multi-way metrics and multivariate coefficients. LEI Universiteit Leiden, 235pp.(Oisterwijk, Proefschriftmaken.nl) W.J., Heiser & D.N.M., Gruijter.
(dissertatie)
2007
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Warrens, M.J. & Gruijter, D.N.M., de & Heiser, W.J. (2007)
A systematic comparison between classical optimal scaling and the twoparameter IRT model. Applied Psychological Measurement, 31 (2), pp. 106-120.
(artikel) -
Joekes, K.J. & Maes, S. & Warrens, M.J. (2007)
Predicting quality of life and self-management from dyadic support and overprotection after myocardial infarction. British Journal of Clinical Psychology, 12, pp. 473-489.
(artikel) -
Warrens, M.J. & Heiser, W.J. (2007)
Robinson Cubes. In: Brito, P., Bertrand, P., Cucumel, G., Caravalho, de, F. (Eds.), Studies in Classification, Data Analysis, and Knowledge Organization, Vol. 9: Selected contributions in data analysis and classification., pp. 515-523. Berlin: Springer.
(boekdeel - hoofdstuk)
2006
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Colzato, L.S. & Warrens, M.J. & Hommel, B. (2006)
Priming and binding in and across perception and action: a correlational analysis of the internal structure of event files. Quarterly Journal of Experimental Psychology : Human Experimental Psychology, 59 (Part A), pp. 1785-1804.
(artikel) -
Warrens, M.J. & Heiser, W.J. (2006)
Scaling Unidimensional Models with Multiple Correspondence Analysis. In: Greenacre, M. & Blasius, J. (Eds.), Multiple Correspondence Analysis and Related Methods (Statistics in the Social and Behavioral Sciences Series), pp. 219-235. London: Chapman & Hall/CRC.
(boekdeel - hoofdstuk)
2005
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Warrens, M.J. & Heiser, W.J. & Gruijter, D.N.M., de (2005)
Reparametrization of homogeneity analysis to accommodate parallel item response functions. Behaviormetrika, 32 (2), pp. 127-139.
(artikel)
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