Associate Professor 

Education

Research Interests


Software (R programs)
Computing confidence bands for analysis of longitudinal method comparison data using Rathnayake and Choudhary (2016, submitted) R Code, Illustration
Computing functional tolerance bands using Rathnayake and Choudhary (2016, Biometrics, 72, 503512)
Books
Choudhary, P. K., Nagaraja, C. H. and Ng, H. K. T. (2015) Ordered Data Analysis, Modeling and Health Research Methods  In Honor of H. N. Nagaraja's 60th Birthday, Springer Proceedings in Mathematics & Statistics, Vol. 149. Springer, New York  
Choudhary, P. K. and Nagaraja, H. N. (2016) Measuring Agreement: Models, Methods, and Applications. Wiley, New York (Forthcoming) 
Publications
In peerreviewed journals
Chowdhury, M., Euhus, D., Onega, T., Biswas, S. and Choudhary, P. K. (2016) A model for individualized risk prediction of contralateral breast cancert, Breast Cancer Research and Treatment, to appear.
Rathnayake, L. N. and Choudhary, P. K. (2016) Tolerance bands for functional data , Biometrics, 72, 503512.
Nawarathna, L. S. and Choudhary, P. K. (2015) A heteroscedastic measurement error model for method comparison data with replicate measurements , Statistics in Medicine, 34, 12421258.
Burbano M., Wilson, T. G. Jr., Valderrama, P., Blansett, J., Wadhwani, C. P., Choudhary P. K., Rodriguez, L. C., and Rodrigues, D. C. (2015) Characterization of cement particles found in periimplantitisaffected human biopsy specimens, International Journal of Oral & Maxillofacial Implants, 30, 11681173.
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, 701706.
Choudhary, P. K., Sengupta, D. and Cassey, P. (2014) A general skewt mixed model that allows different degrees of freedom for random effects and error distributions, Journal of Statistical Planning and Inference, 147, 235247.
Nawarathna, L. S. and Choudhary, P. K. (2013) Measuring agreement in method comparison studies with heteroscedastic measurements, Statistics in Medicine, 32, 51565171.
Yu, X., Baron, M. and Choudhary, P. K. (2013) Changepoint detection in binomial thinning processes, with applications in epidemiology, Sequential Analysis, 32, 350367.
Assaad, H. and Choudhary, P. K. (2013) Lstatistics for repeated measurements data with application to trimmed means, quantiles and tolerance intervals, Journal of Nonparametric Statistics, 25, 499521.
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 , 51515159.
Kalra, IS, Alam, MM, Choudhary, PK, Pace, BS (2011) Kruppellike Factor 4 activates HBG gene expression in primary erythroid cells, British Journal of Haematology, 154, 248259.
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, 466479.
Ghatpande, SS, Choudhary, PK, Quinn, CT, Goodman, SR (2010) In vivo pharmacoproteomic analysis of hydroxyurea induced changes in the sickle red blood cell membrane proteome, Journal of Proteomics, 73, 619626.
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 microscopebased measurements of avian eggshell thickness, Journal of Field Ornithology, 81, 402410.
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 http://www.bepress.com/ijb/vol6/iss1/19
Choudhary, P. K. and Yin, K. (2010) Bayesian and frequentist methodologies for analyzing method comparison studies with multiple methods . Statistics in Biopharmaceutical Research, 2, 122132.
HryniewiczJankowska, 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, 210221.
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, 22732289.
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, 11021115.
Ghatpande, S.S., Choudhary, P.K., Quinn, C.T. and Goodman, S.R (2008) Pharmacoproteomic study of Hydroxyureainduced modifications in the sickle red blood cell membrane proteome, Experimental Biology and Medicine, 233, 15101517.
Choudhary, P. K. (2007) Semiparametric regression for assessing agreement using tolerance bands . Computational Statistics and Data Analysis, 51, 62296241.
Choudhary, P. K. (2007) A tolerance interval approach for assessment of agreement with left censored data . J. of Biopharmaceutical Statistics, 17, 583594.
Choudhary, P. K. and Nagaraja, H. N. (2007) Tests for assessment of agreement using probability criteria, J. of Statistical Planning and Inference, 137, 279290.
HryniewiczJankowska, A, Choudhary, PK, Goodman, SR (2007) Variation in the monocyte proteome, Experimental Biology and Medicine, 232, 967976.
Choudhary, P. K. and Ng, H. K. T. (2006) Assessment of agreement under nonstandard conditions using regression models for mean and variance, Biometrics, 62 , 288296.
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, 326337.
Svatek, R. S., Shulman, M., Choudhary, P. K., and Benaim, E. (2006) Critical analysis of prostate specific antigen doubling time calculation methodology, Cancer, 106, 10471053.
Choudhary, P. K. and Nagaraja, H. N. (2005) A twostage procedure for selection and assessment of agreement of the best instrument with a gold standard, Sequential Analysis, 24, 237257.
Choudhary, P. K. and Nagaraja, H. N. (2005) Assessment of agreement using intersectionunion principle , Biometrical J. , 47, 674681.
Choudhary, P. K. and Nagaraja, H. N. (2005) Selecting the instrument closest to a gold standard, J. of Statistical Planning and Inference, 129, 229237.
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, 377391.
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, 143161.
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, 313333.
In edited volumes
Sengupta, D., Choudhary, P. K. and Cassey, P. (2015) Modeling and Analysis of Method Comparison Data with Skewness and Heavy Tails. In Ordered Data Analysis, Modeling and Health Research Methods, Choudhary, P. K., Nagaraja, C. H. and Ng, H. K. T. (Editors), Springer, New York, 169187.
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, 461480. This article also appears as an entry in the online version of Wiley's Encyclopedia of Statistical Sciences, second edition.
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, 215244.
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10/31/2016