Profile

Rand Wilcox

Professor of Psychology

Contact Information
E-mail: rwilcox@wilcox.usc.edu
Phone: (213) 740-2258
Office: SGM 618

LINKS
Curriculum Vitae
Personal Website
 

Education

  • B.A. Mathematics, University of California, Santa Barbara
  • M.A. Mathematics, University of California, Santa Barbara
  • Ph.D. Psychometrics and Statistics, University of California, Santa Barbara, 1976

Description of Research

Summary Statement of Research Interests
Professor Wilcox researches statistics and quantitative methods. He gives specific focus to inferential methods, particularly robust techniques for comparing groups and studying how variables are related.

Publications

Book
  • Wilcox, R. R. (2005). Introduction to Robust Estimation and Hypothesis Testing, 2nd Ed. Introduction to Robust Estimation and Hypothesis Testing, 2nd Ed./Academic Press.
Book Chapter
  • Wilcox, R. R. (2008). Sample size and power. Oxford: Sample size and power/Oxford University Press.
  • Wilcox, R. R., Keselman, H. (2006). A skipped multivariate measure of location: One- and two-sample hypothesis testing. pp. p.125-138. A skipped multivariate measure of location: One- and two-sample hypothesis testing.
  • Wilcox, R. R. (2004). Extension of Hochberg's two-stage multiple comparison method. pp. p.371-380. New York: Extension of Hochberg's two-stage multiple comparison method/Marcel Dekker.
Journal Article
  • Wilcox, R. R. (2008). Robust principal components: A generalized variance perspective. Behavioral Research Methods. Vol. 40, pp. 102-108.
  • Wilcox, R. R. (2007). ANCOVA: A robust omnibus test based on selected design points. Journal of Modern Applied Statistical Methods/JMASM. Vol. 5, pp. 14-21.
  • Wilcox, R. R. (2007). Local measures of association: Estimating the derivative of the regression line. British Journal of Mathematical and Statistical Psychology/British Psychological Society. pp. p. NA.
  • Wilcox, R. R. (2007). Robust ANCOVA: Some small-sample results when there are multiple groups and multiple covariates. Journal of Applied Statistics. Vol. 34, pp. 353--364.
  • Fournier, B., Rupin, N., Bigerelle, M., Najjar, D., Iost, A., Wilcox, R. R. (2007). Estimating the parameters of a generalized lambda distribution. Computational Statistics & Data Analysis/Elsevier. pp. p.NA.
  • Wilcox, R. R. (2006). INFERENCES ABOUT THE COMPONENTS OF A GENERALIZED ADDITIVE MODEL. Journal of Modern Applied Statistical Methods/JMASM. pp. p.NA.
  • Mathiyakom, W., Mc Nitt-Gray, J. L., Wilcox, R. R. (2006). Regulation of angular impulse during forward translating tasks. Journal of Applied Biomechanics/Human Kinetics. Vol. NA
  • Mathiyakom, W., Mc Nitt-Gray, J. L., Wilcox, R. R. (2006). Lower extremity control and dynamics during backward angular impulse generation in backward translating tasks,. Experimental Brain Research. Vol. 169, pp. 377-388.
  • Wilcox, R. R. (2006). Quantile regression: On Inferences about the slopes corresponding to one, two or three quantiles Please enter the complete title as it would appear on your C.V. If your work is part of a larger publication (for example, a chapt. Journal of Modern Applied Statistical Methods/JMASM. pp. p.NA.
  • Wilcox, R. R. (2006). Comparing medians. Computational Statistics & Data Analysis/Elsevier. Vol. 51, pp. 1934-1943.
  • Kowalchuk, R., Keselman, H., Algina, J., Wilcox, R. R. (2006). Multiple Comparison Procedures, Trimmed Means and Transformed Statistics. Journal of Modern Applied Statistical Methods/JMASM. pp. p. NA.
  • Wilcox, R. R. (2006). A note on inferences about the median of difference scores. Educational and Psychological Mesasurement/Sage. pp. p. 624-630.
  • Wilcox, R. R. (2006). Testing the hypothesis of a homoscedastic errorterm in simple, nonparametric regression. Educational and Psychological Mesasurement/Sage. pp. p. 85-92.
  • Wilcox, R. R. (2006). CONFIDENCE INTERVALS FOR PREDICTION INTERVALS. Journal of Applied Statistics/Taylor and Francis. pp. p. 317-326.
  • Wilcox, R. R. (2006). Comparing robust generalized variances and comments on efficiency. Statistical Methodology/Elsevier. pp. p. 211-223.
  • Wilcox, R. R. (2006). Detecting heteroscedasticity in a simple regression model via quantile regression slopes. Journal of Statistical Computation and Simulation/Taylor and Francis. pp. p.705-712.
  • Wilcox, R. R. (2006). Pairwise comparisons of dependent groups based on medians. Computational Statistics & Data Analysis/Elsevier. pp. p2933-2941.
  • Smucker, S., Earleywine, M., Wilcox, R. R. (2006). Cannabis, Motivation, and Life Satisfaction. Substance Abuse, Treatment and Policy/NA. pp. p. NA.
  • Wilcox, R. R. (2006). Graphical Methods for assessing effect size. Journal of Experimental Education/Heldref. pp. p. 353-367.
  • Wilcox, R. R. (2006). Some Results on Comparing Quantiles of Dependent Groups. Communications in Statistics-Simulation & Computation/Marcel Dekker. pp. p. in press.
  • Wilcox, R. R. (2005). A MULTIVARIATE GENERALIZATION OF THE WILCOXON-MANN-WHITNEY TEST. American Journal of Mathematical and Management Sciences/American Sciences Press. pp. 343-364.
  • Wilcox, R. R. (2005). An affine invariant rank-based method for comparing dependent groups. British Journal of Mathematical and Statistical Psychology/British Psychological Society. pp. p. 33--42.
  • Wilcox, R. R. (2005). Estimating the conditional variance of Y, given X, in a simple regression model. Journal of Applied Statistics/Taylor and Francis. pp. p.495--502.
  • Wilcox, R. R. (2005). A comparison of six smoothers when there are multiple predictors. Statistical Methodology/Elsevier. pp. p.49--57.
  • Wilcox, R. R. (2005). Within by Within ANOVA based on medians. Journal of Modern Applied Statistical Methods/JMASM. pp. p.53--62.
  • Wilcox, R. R. (2005). Comparing medians: An overview plus new results on dealing with heavy-tailed distributions. Journal of Experimental Education/Heldref. pp. p.249--263.
  • Wilcox, R. R. (2004). Some results on extensions and modifications of the Theil-Sen estimator. British Journal of Mathematical and Statistical Psychology/British Psychological Society. pp. p. 265--280.
  • Othman, A., Wilcox, R. R. (2004). Comparing measures of the ``typical' score across treatment groups. British Journal of Mathematical and Statistical Psychology/British Psychological Society. pp. p. 215--234.
  • Wilcox, R. R. (2004). Inferences based on a skipped correlation coefficient. Journal of Applied Statistics/Taylor and Francis. pp. p.131--144.
  • Keselman, H., Wilcox, R. R. (2004). A power comparison of robust test statistics based on adaptive estimators. Journal of Modern Applied Statistical Methods/JMASM. pp. p. 27-38.
  • Wilcox, R. R. (2004). Multivariate Location: Robust estimators and inferences. Journal of Modern Applied Statistical Methods/JMASM. pp. p.2--12.
  • Wilcox, R. R. (2004). Kernel density estimators: An approach to understanding how groups differ. Understanding Statistics/Erlbaum. pp. p.333-348.
  • Wilcox, R. R. (2004). Robust Regression Methods:Achieving small standard errors when there is heteroscedasticity. Understanding Statistics/Erlbaum. pp. p.349--364.
  • Wilcox, R. R. (2004). An extension of Stein's two-stage method to pairwise comparisons among dependent groups based on trimmed means. Sequential Analysis/Marcel Dekker. pp. p. 63--74.
  • Keselman, H., Othman, A., Wilcox, R. R. (2004). The new and improved two-sample t test. Psychological Science/American Psychoologicl Society. pp. p. 47-51.
  • Keselman, H., Wilcox, R. R. (2005). Adaptive robust estimation and testing. British Journal of Mathematical and Statistical Psychology/British Psychological Society. pp. p. NA.

Honors and Awards

  • USC Center for Excellence in Research, fellow, 7/1/2007-7/1/2010  
  • Fellow (or Equivalent) of National Society in Discipline, American Psychological Society, 1993-1994   
  • Fellow (or Equivalent) of National Society in Discipline, American Psychological Association, 1988-1989   
  • T. L. Saaty Award, 1984  

Service to the Profession

Editorships and Editorial Boards
  • Associate Editor, Communications in Statistic-Theory and Methods, 10/01/2006-  
  • Editorial Board Member, British Journal of Mathematical and Statistical Psychology, 07/01/2002-  
  • Associate Editor, Computational Statistics and Data Analyses, 07/01/1998-  
  • Associate Editor, Psychometrika, 04/01/1983-  
  • Editorial Board, Handbook Series on Computing and Statistics, 11/01/2006-01/01/2010  
  • Advisory Board Member, Journal of Experimental Education, 11/01/2006-01/01/2009  
  • Editorial Board Member, American Journal of Mathematical and Management Sciences, 1981-2007  
  • Guest editor (special issue), Computational Statistics and Data Analyses, 2005-2006  
  • Editorial Board Member, Psychological Methods, 2001-2006  
  • Editorial Board Member, Journal of Personality and Social Psychology, 1991-1996  
  • Editorial Board Member, Journal of Educational Measurement, 1981-1996  
  • Editorial Board Member, Applied Psychological Measurement, 1980-1996  
Professional Memberships
  • International Statistical Institute, 03/15/2005-  
  • International Association of Statistical Computing, 05/01/1997-  
  • Association for Psychological Science, 10/01/1989-  
  • Royal Statistical Society, 04/06/1988-  
  • British Psychological Society, 02/04/1987-  
  • American Statistical Association, 03/15/1973-  
  • Institute of Mathematical Statistics, 03/15/1973-  
  • Psychometric Society, 1973-  
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