Assistant Professor of Mathematics



Office: STA232


Assistant Professor    Franklin & Marshall College, Lancaster, PA         2012-present
     Department of Mathematics

Statistician III               Battelle Memorial Institute, Columbus, OH          2010-2012


Ph. D. in Statistics          The Ohio State University, Columbus, OH           2010

B. A. in Philosophy         Millersville University, Millersville, PA                 2003 

B. S. in Mathematics    Millersville University, Millersville, PA                  2003
     Minor in Computer Science  


Dean, A. M., Voss, D., and Draguljic, D., “Design and Analysis of Experiments” 2nd Ed., Springer- Verlag, Berlin-Heidelberg-New York. (2017). 

  • Gotsch, S. G., Davidson, K., Murray, J., Duarte, V., and Draguljic, D., “Epiphyte abundance predicts vapor pressure deficit across an elevational gradient in a tropical montane region”,  American Journal of Botany, In Press. 

  • Gotsch, S. G., Dawson, T. E., and Draguljic, D., “Variation in the resilience of cloud forest epiphytes to severe drought”, New Phytologist, In Press.

  • Gotsch, S. G., Draguljic, D., and Williams, C. J., “Evaluating the effectiveness of urban trees to mitigate storm water runoff via transpiration and stemflow", Urban Ecosystems, In Press(pdf) (link)

  • Rumbell, T. H., Draguljić, D., Yadav, A., Hof, P. R., Luebke, J. I. and Weaver, C. M., “Automated evolutionary optimization of ion channel conductances and kinetics in models of young and aged rhesus monkey pyramidal neurons”, J. of Computational Neuroscience, Vol. 41, Iss. 1, pp. 65-90, 2016. (link)

  • Darby, A., Draguljic, D., Glunk, A., and Gotsch, S. G., “Habitat moisture is an important driver of patterns of sap flow and water balance in tropical montane cloud forest epiphytes”, Oecologia, Vol. 182, Iss. 2, pp. 357-371, 2016. (link)

  • Draguljic, D., Nekkanty, S., Dean, A. M., Santner, T. J. and Shivpuri, R., “Optimizing thin film tool coatings using a finite element computer simulator”, Quality Engineering, Vol. 27, Iss. 4, pp. 461-472, 2015. (link)

  • Draguljic, D., Woods, D. C., Dean, A. M., Lewis, S. M. and Vine, A. E., “Screening strategies in the presence of interactions”, Technometrics, Vol. 56, Iss. 1, pp. 1-28, 2014. (link)

    • With discussion from C. M. Anderson-Cook, M. S. Hamada, W. A. Brenneman, W. Li, J. Zhu, P. R. Scinto, R. G. Wilkinson, Z. Wang, and A. Rose. 

    • Awarded 2015 Youden Award for best expository paper appearing in the 2014 issues of Technometrics. 

  • Draguljic, D., Dean, A. M. and Santner, T. J., “Noncollapsing Space-Filling Designs for Bounded Nonrectangular Regions”, Technometrics, Vol. 54, pp. 169-178, 2012. (link)

  • Carlton, M., Gillespie, R., Garver, J., Draguljic, D. and Vela, E. M., “The Syrian golden hamster as a model study to Flexal virus pathogenesis”, Archives of Clinical Microbiology, Vol. 3, No. 2:2, 2012. (link)

  • Georgiou, S. D., Draguljic, D. and Dean, A. M., “An overview of two-level supersaturated designs with cyclic structure”, Journal of Statistical Theory and Practice, Vol. 3, pp. 489-504, 2009. (link)

Under Sumbission/Revision 
  • Dicklitch-Nelson, S., Thompson, S., Draguljic, D., and Yost, B., “From persecutors to protectors: Human rights and the global barometer of gay rights (GBGR)”, Journal of Human Rights.  


Model Selection 

ChengCheng Zhai ('18, Hackman Scholar) and I are developing R software that performs variable selection in mixed models. The variable selection is performed with respect to fixed terms while preserving effect hierarchy (these include main effects, interactions between main effects, and polynomial terms).

  • The current R package can be downloaded below. Before you install the package in R, please remove the .txt extension 
  • An example and a very brief description of the features can be found here.  

I developed R software to implement CoNcaD algorithm from Draguljic, Dean, and Santner (2012).  The algorithm constructs constrained noncollapsing designs suitable for computer experiments. 

  • The R package can be downladed below. Before you install the package in R, please remove the .txt extension. 
  • An example of how to install the package and use the code can be found here.  
Course Information 
Fall 2017
  • MAT215: Introduction to Statistical Modeling  
  • MAT216: Probability and Statistics I


Past Semesters
  • MAT109: Calculus I (Fall 2012, 2013)
  • MAT110: Calculus II (Fall 2014, 2016)
  • MAT215: Introduction to Statistical Modeling (Spring 2015, 2016, 2017)
  • MAT216: Probability and Statistics I (seven semesters since 2012)
  • MAT316: Probability and Statistics II (Spring 2013, 2015)
  • MAT391: Introduction to Statistical Learning (Fall 2014, Spring 2017)
  • MAT475: Design and Analysis of Experiments (Fall 2016)