Josh Naranjo

Joshua D. Naranjo

Joshua D. Naranjo Professor
Director of Statistical Consulting Center

5507 Everett Tower
(269) 387-4548

Ph.D. Statistics, Pennsylvania State University

Fall 2017

  • Teaching
    Stat 6620

  • Office Hours
    MW: 9:30-10:30
    TR: 9:30-11:30, 1-1:30
    For other hours, appointments are welcome

  • Statistical Consulting Center hours
    Email for an appointment



Josh received his Ph.D. from Penn State in 1989 under the direction of Professor Tom Hettmansperger. His research has focused on robust regression, regression effect, and diagnostics for method selection. Teaching preferences include linear models and applied statistics.


  • Confidence Intervals for Mean Difference Between Two Delta-Distributions, Robust Rank-Based and Nonparametric Methods (2016), R.Y. Liu, J.W. McKean (eds.), Springer Proceedings in Mathematics & Statistics 168, with Karen Rosales. (PDF)
  • The natural history of perforated foregut ulcers after repair by omental patching or primary closure, European Journal of Trauma and Emergency Surgery (2016), pp.1-5, with D. Smith, M. Roeser, and J. A. Carr. (PDF)
  • A pretest for using logrank or Wilcoxon in the two-sample problem, Computational Statistics and Data Analysis 55 (2011) 2400–2409, with Annie Darilay. (PDF)
  • Diagnostics for Choosing between Logrank and Wilcoxon Tests, METRON - International Journal of Statistics 2010, vol. LXVIII, n. 2, pp. 111-125 , with Ruvie Lou Martinez.(PDF)
  • Adjusting for Regression Effect in Uncontrolled Studies, Biometrics 57, pp. 178-181, 2001 (with J. McKean) (PDF)
  • GR Estimates for an Autoregressive Time Series, Statistics and Probability Letters 51, pp. 165-172, 2001 (with J. Terpstra and J. McKean. )(PDF)
  • Weighted Wilcoxon estimates for autoregressio, Australian and New Zealand Journal of Statistics Volume 43, Issue 4, pp. 399-419, December 2001 (with J. Terpstra and J. McKean. )(PDF)
  • High Breakdown Rank Regression, Journal of the American Statistical Association,Vol. 94, No. 445, p. 205-219, 1999 ( with Chang, W. McKean, J. and Sheather, S.) (PDF)
  • On A Rank-Based Likelihood, The Philippine Statistician, Vol. 42, Nos. 1-2, pp. 1-8, 1998. (PDF)
  • Rank Regression with Estimated Scores, .Statistics and Probability Letters, Vol. 33, No.2, pp. 209-216, 1997. ( with McKean, J) (PDF)
  • More Efficient L-Estimates. Journal of Statistical Computation and Simulation, Vol. 54, pp. 355-361 (1996). (PDF)
  • Robust measures of association in the correlation model. Statistics and Probability Letters 20 (1994) 295-306. (PDF)
  • Bounded-influence rank regression, .Journal of the Royal Statistical Society, Series B, Vol. 56, No. 1, pp. 209-220, 1994 (with Hettmansperger, T) (PDF)

Department of Statistics
3304 Everett Tower
Western Michigan University
Kalamazoo MI 49008-5152 USA
(269) 387-1420 | (269) 387-1419 Fax