Pankaj Kumar Choudhary

Associate Professor 

Department of Mathematical Sciences  

  University of Texas at Dallas

Contact Information
The University of Texas at Dallas
Department of Mathematics, FO 35
800 West Campbell Road                        
Richardson, TX 75080-3021, USA
Office: FO 2.408B
Phone:    972-883-4436
Fax:        972-883-6622
Email:      pankaj AT utdallas DOT edu
B.Sc., Statistics, University of Delhi, India, 1996
M.Sc., Statistics, Indian Institute of Technology, Kanpur, India, 1998
Ph.D., Statistics, Ohio State University, Columbus, OH, USA, 2002




Research Interests
  • Biostatistics
  • Statistical methodology
  • Method comparison studies
  • Risk prediction



Software (R programs)


    In peer-reviewed journals

  1. Rathnayake, L. N. and Choudhary, P. K. (2015) Tolerance Bands for Functional Data , Biometrics, To appear.

  2. Nawarathna, L. S. and Choudhary, P. K. (2015) A Heteroscedastic Measurement Error Model for Method Comparison Data With Replicate Measurements , Statistics in Medicine, 34, 1242-1258.

  3. Brulez, K., Choudhary, P. K., Maurer, G., Portugal, S. J., Boulton, R. L., Webber, S. L. and Cassey, P. (2014) Visual scoring of eggshell patterns has poor repeatability, Journal of Ornithology, 155, 701-706.

  4. Choudhary, P. K., Sengupta, D. and Cassey, P. (2014) A general skew-t mixed model that allows different degrees of freedom for random effects and error distributions, Journal of Statistical Planning and Inference, 147, 235-247.

  5. Nawarathna, L. S. and Choudhary, P. K. (2013) Measuring agreement in method comparison studies with heteroscedastic measurements, Statistics in Medicine, 32, 5156-5171.

  6. Yu, X., Baron, M. and Choudhary, P. K. (2013) Change-point detection in binomial thinning processes, with applications in epidemiology, Sequential Analysis, 32, 350-367.

  7. Assaad, H. and Choudhary, P. K. (2013) L-statistics for repeated measurements data with application to trimmed means, quantiles and tolerance intervals, Journal of Nonparametric Statistics, 25, 499-521.

  8. Shelor, C. P., Kirk, A. B., Dasgupta, P. K., Kroll, M., Campbell, C. A. and Choudhary, P. K. (2012) Breastfed Infants Metabolize Perchlorate, Environmental Science & Technology, 46 , 5151-5159.

  9. Kalra, IS, Alam, MM, Choudhary, PK, Pace, BS (2011) Kruppel-like Factor 4 activates HBG gene expression in primary erythroid cells, British Journal of Haematology, 154, 248-259.

  10. Chou, JL, Shenoy, DV, Thomas, N, Choudhary, PK, Laferla, FM, Goodman, SR, Breen, GA (2011) Early dysregulation of the mitochondrial proteome in a mouse model of Alzheimer's disease, Journal of Proteomics, 74, 466-479.

  11. Ghatpande, SS, Choudhary, PK, Quinn, CT, Goodman, SR (2010) In vivo pharmaco-proteomic analysis of hydroxyurea induced changes in the sickle red blood cell membrane proteome, Journal of Proteomics, 73, 619-626.

  12. Igic, B., Hauber, M. E., Galbraith, J. A., Grim, T., Dearborn, D. C., Brennan, P. L. R., Moskat, C., Choudhary, P. K. and Cassey, P. (2010) Comparison of micrometer- and scanning electron microscope-based measurements of avian eggshell thickness, Journal of Field Ornithology, 81, 402-410.

  13. Choudhary, P. K. (2010) A unified approach for nonparametric evaluation of agreement in method comparison studies . The International Journal of Biostatistics, 6, issue 1, article 19. Available at

  14. Choudhary, P. K. and Yin, K. (2010) Bayesian and frequentist methodologies for analyzing method comparison studies with multiple methods . Statistics in Biopharmaceutical Research, 2, 122-132.

  15. Hryniewicz-Jankowska, A, Choudhary, PK, Ammann, LP, Quinn, CT, Goodman, SR (2009) Monocyte protein signatures of disease severity in sickle cell anemia, Experimental Biology and Medicine, 234, 210-221.

  16. Yin, K., Choudhary, P. K., Varghese, D. and Goodman, S. R. (2008) A Bayesian approach for sample size determination in method comparison studies. Statistics in Medicine, 27, 2273-2289.

  17. Choudhary, P. K. (2008) A tolerance interval approach for assessment of agreement in method comparison studies with repeated measurements. J. of Statistical Planning and Inference, 138, 1102-1115.

  18. Ghatpande, S.S., Choudhary, P.K., Quinn, C.T. and Goodman, S.R (2008) Pharmaco-proteomic study of Hydroxyurea-induced modifications in the sickle red blood cell membrane proteome, Experimental Biology and Medicine, 233, 1510-1517.

  19. Choudhary, P. K. (2007) Semiparametric regression for assessing agreement using tolerance bands . Computational Statistics and Data Analysis, 51, 6229-6241.

  20. Choudhary, P. K. (2007) A tolerance interval approach for assessment of agreement with left censored data . J. of Biopharmaceutical Statistics, 17, 583-594.

  21. Choudhary, P. K. and Nagaraja, H. N. (2007) Tests for assessment of agreement using probability criteria, J. of Statistical Planning and Inference, 137, 279-290.

  22. Hryniewicz-Jankowska, A, Choudhary, PK, Goodman, SR (2007) Variation in the monocyte proteome, Experimental Biology and Medicine, 232, 967-976.

  23. Choudhary, P. K. and Ng, H. K. T. (2006) Assessment of agreement under non-standard conditions using regression models for mean and variance, Biometrics, 62 , 288-296.

  24. Chou, J., Choudhary, P. K. and Goodman, S. R. (2006) Protein profiling of sickle cell versus control RBC core membrane skeletons by ICAT technology and tandem mass spectrometry, Cellular & Molecular Biology Letters, 11, 326-337.

  25. Svatek, R. S., Shulman, M., Choudhary, P. K., and Benaim, E. (2006) Critical analysis of prostate specific antigen doubling time calculation methodology, Cancer, 106, 1047-1053.

  26. Choudhary, P. K. and Nagaraja, H. N. (2005) A two-stage procedure for selection and assessment of agreement of the best instrument with a gold standard, Sequential Analysis, 24, 237-257.

  27. Choudhary, P. K. and Nagaraja, H. N. (2005) Assessment of agreement using intersection-union principle , Biometrical J. , 47, 674-681.

  28. Choudhary, P. K. and Nagaraja, H. N. (2005) Selecting the instrument closest to a gold standard, J. of Statistical Planning and Inference, 129, 229-237.

  29. Nagaraja, H. N., Choudhary, P.  K. and Matalas, N. (2003) Number of records in a bivariate sample with application to Missouri river flood data, Methodology and Computing in Applied Probability, 4, 377-391.

  30. Misra, N., Choudhary, P.K., Dhariyal, I. and Kundu, D. (2002) Smooth estimators for estimating order restricted scale parameters of two gamma distributions, Metrika, 56, 143-161.

  31. Choudhary, P. K., Kundu, D. and Misra, N. (2001) Likelihood ratio test for simultaneous testing of mean and variance in normal distribution, J. of Statistical Computation and Simulation, 71, 313-333.

  32. In edited volumes

  33. Choudhary, P. K. (2009) Interrater agreement. In Methods and Applications of Statistics in the Life and Health Sciences, Balakrishnan, N. et al. (Editors), John Wiley, 461-480. This article also appears as an entry in the online version of Wiley's Encyclopedia of Statistical Sciences, second edition.

  34. Choudhary, P. K. and Nagaraja, H. N. (2004) Measuring agreement in method comparison studies - A review. In Advances in Ranking and Selection, Multiple Comparisons, and Reliability, Balakrishnan, N., Kannan, N. and Nagaraja, H. N. (Editors), Birkhauser, Boston, 215-244.

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