Peter H. Westfall
 

Education

Ph.D. in Statistics, University of California at Davis, 1983.
M.S. in Statistics, University of California at Davis, 1981.
B.S. in Mathematics, University of California at Davis, 1979.

Current Position:

James and Marguerite Niver and Paul Whitfield Horn Professor of Statistics, and Associate Director of the Center for Advanced Analytics and Business Intelligence, Department of Information Systems and Quantitative Sciences, Rawls College of Business Administration,  Texas Tech University.

Other Positions:

May 1999 to August 1999 - Research Fellow at Glaxo-Wellcome, Research Triangle Park, North Carolina
September 1989 to 1994 - Associate Professor of Statistics, Department of Information Systems and Quantitative Sciences, Texas Tech University.
September 1983 to 1989 - Assistant Professor of Statistics, Department of Information Systems and Quantitative Sciences, Texas Tech University.
Statistical Consultant for Pharmaceutical Companies (Merck & Co., Abbott, Marion Merrel Dow, Upjohn, Glaxo), 1988-present.
Faculty employee in the Battelle Summer Faculty Research and Engineering Program, June 1986-August 1986. Stationed in the U.S. Army Institute of Surgical Research, Fort Sam Houston, San Antonio.
 

Major Disciplines:

Data Mining, Business Intelligence, Statistics, Statistical Consulting, Statistical Software Development (I am principal developer of PROC MULTTEST of SAS, and have developed a clinical trials software simulation system).

Prizes and Honors:

2007: Texas Tech College of Business Administration Outstanding Research Award
2006: Elected Fellow of the American Association for the Advancement of Science.
2005: Excellence in Continuing Education Award, American Statistical Association.
2002: Awarded Paul Whitfield Horn Professorship.
2002: Awarded James and Marguerite Niver Professorship.
2000: Academic Achievement Award, Texas Tech University.
2000: Texas Tech Outstanding Research Award.
1999: Texas Tech University Excellence in Teaching award for the College of Business Administration.
1997: Elected Fellow of the American Statistical Association.
1997: Honorable Mention in the "Statistics, Data Analysis, and Modeling" Section, SAS User's Group International Conference.
1990: College of Business Administration Research Award.
1991: Outstanding Statistical Application, American Statistical Association.
1988: Texas Tech University Excellence in Teaching award for the College of Business Administration.
1989: Best Contributed Paper, Statistics and Statistical Graphics Subsection, SAS User's Group International Conference.


Professional Organizations

American Statistical Association
American Association for the Advancement of Science
Institute for Mathematical Statistics
 


Selected Professional Service Activities

Chair of Statistics Education Section for the Joint Statistical Meetings, 2009.
Editor, The American Statistician, 2006-2008 term.
Co-Guest Editor (with A. Tamhane), Journal of Statistical Planning and Inference, 2004, 125.
Co-Guest Editor (with A. Tamhane), Journal of Biopharmaceutical Statistics, 2003, 13(4).
Associate editor, The American Statistician, 2000-2005.
Associate editor, Journal of the American Statistical Association, 2003-2006


Teaching Experience

Business Intelligence
Data Mining
Honors Business Statistics
Elementary Business Statistics - including managing and teaching of large sections
MBA Statistics
Regression Analysis 
Multivariate Analysis 
Mathematical Statistics  (Taught from Rao, Lin. Stat. Inf. & Apps)
Advanced Statistical Methods


Research

Chief Publications:

Books

Westfall,P.H., Tobias,R., Rom,D., Wolfinger, R., and Hochberg, Y. (1999).   Multiple Comparisons and Multiple Tests using the SAS® System, SAS® Institute Inc. Books by Users.

Westfall, P.H. and Tobias, R. (2000). Exercises to Accompany "Multiple Comparisons and Multiple Tests Using the SAS® System" , SAS® Institute Inc. Books by Users.

Westfall,P.H. and Young, S.S.(1993), Resampling-Based Multiple Testing: Examples and Methods for P-Value Adjustment. Wiley, New York. (340 pp.)

Articles in Journals

  1. Westfall, P.H. (2008).  The Benjamini-Hochberg Method with Infinitely Many Contrasts in Linear Models, to appear in Biometrika.
  2. Westfall, P.H. (2008). ROC and FDR: Similarities, Assumptions, and Decisions, to appear in Statistica Sinica.
  3. Westfall, P.H. and Troendle, J.F. (2008).  Multiple Testing with Minimal Assumptions, to appear in Biometrical Journal.
  4. Westfall P.H., Tsai K., Ogenstad S., Tomoiaga A., Moseley S., and Lu Y. (2008).  Clinical Trials Simulation: A Statistical Approach. Journal of Biopharmaceutical Statistics 18, 611-630.
  5. Hothorn,, T., Bretz, F., and Westfall, P. (2008).  Simultaneous Inference in General Parametric Models, Biometrical Journal 50(3), 346–363.
  6. Westfall, P.H. and Tobias, R.D. (2007).  Multiple Testing of General Contrasts:  Truncated Closure and the Extended Shaffer-Royen Method, Journal of the American Statistical Association 102: 487-494.
  7. Lu, Y., and Westfall, P. (2006).  Is Bonferroni Admissible for Large m?  to appear in American Journal of Mathematical and Management Sciences.
  8. Dmitrienko, A., Wiens, B. and Westfall, P. (2006). Fallback Tests in Dose Response Clinical Trials, Journal of Biopharmaceutical Statistics 16, 745-755.
  9. Westfall, P., Hoffman, J., and Xia, J. (2007).  Joint Analysis of Multiple Categorical Dependent Variables in Organizational Research.  Organizational Research Methods 10(4), 673-688.
  10. Westfall, P. and Young, S.S. (2005).  Contradictions in Highly Cited Medical Research. [Letter to the editor].  Journal of the American Medical Association 294(21), 2695-2696.
  11. Koyama, T., and Westfall, P.H. (2005).  Decision-Theoretic Views on Simultaneous Testing of Superiority and Noninferiority, Journal of Biopharmaceutical Statistics 15, 943-955.
  12. Gönen, M., Johnson, W.O., Lu, Y. and Westfall, P. (2005).  "The Bayesian Two-Sample t Test" The American Statistician 59, 252-257.
  13. Moreau, A.R., Westfall, P.H., Cancio, L.C., and Mason, A.D. (2005). Development And Validation Of An Age-Risk Score For Mortality Prediction Following Thermal Injury, Journal of Trauma, Injury, Infection & Critical Care,  58(5):967-972.
  14. Somerville, M., Wilson, T., Koch, G., Westfall, P. (2004). Evaluation of a weighted multiple comparison procedure, Pharmaceutical Statistics 4, 7-13. 
  15. Westfall, P.H. (2005). Comment on Benjamini and Yekutieli, ‘False Discovery Rate Adjusted Confidence Intervals for Selected Parameters,’ Journal of the American Statistical Association 100, 85-89.
  16. Hein, S.E. and Westfall, P.H. (2004). Improving Tests of Abnormal Returns by Bootstrapping the Multivariate Regression Model with Event Parameters.   Journal of Financial Econometrics 2, 451-471.
  17. Peter Bauer; George Chi; Nancy Geller; A. Lawrence Gould; David Jordan; Surya Mohanty; Robert O'Neill; Peter H. Westfall (2003). Industry, Government, and Academic Panel Discussion on Multiple Comparisons in a “Real” Phase Three Clinical Trial.  Journal of Biopharmaceutical Statistics, 13(4), 691-701.
  18. Westfall, P.H. (2003).  Comment on “Resampling-based Multiple Testing for Microarray Data Analysis,” Y. Ge, S. Dudoit and T. P. Speed, Test 12, 60-65.
  19. Dmitrienko, A, Offen, W. and Westfall, P. (2003).  Gatekeeping strategies for clinical trials that do not require all primary effects to be significant.  Statistics in Medicine 22, 2387-2400.
  20. Frank Bretz, Torsten Hothorn, and Peter Westfall (2002). On multiple comparisons in R. R News, 2(3):14-17,  http://cran.r-project.org/doc/Rnews.
  21. Gönen, M., Westfall, P.H. and Johnson, W.O. (2003).  "Bayesian multiple testing for two-sample multivariate endpoints," Biometrics 59, 76-82.
  22. Zaykin, D.V., Westfall, P.H., Young, S.S, Karnoub, M.A., Wagner, M.J., and Ehm, M.G. (2002).  "Testing association of statistically inferred haplotypes with discrete and continuous traits in samples of unrelated individuals," Human Heredity 53, 79-91.
  23. Westfall, P.H., and Soper, K.A. (2001). "Using priors to improve multiple animal carcinogenicity tests", Journal of the American Statistical Association 96, 827-834.
  24. Westfall, P.H., Ho, S.-Y.,  and Prillaman, B.A. (2001). "Properties of multiple intersection-union tests for multiple endpoints in combination therapy trials," Journal of Biopharmaceutical Statistics 11, 125-138.
  25. Westfall, P.H. and Krishen, A. (2001). "Optimally weighted, fixed sequence, and gatekeeping multiple testing procedures," Journal of Statistical Planning and Inference 99, 25-40.
  26. Zaykin, D.V., Zhivotsky, L.A., Westfall, P.H., and Weir, B.S. (2002). "Truncated product method for combining p-values," Genetic Epidemiology 22, 170-185.
  27. Westfall,P.H. and Wolfinger, R.D. (2000). "Closed Multiple Testing Procedures and PROC MULTTEST." SAS Observations, July, 2000.
  28. Zaykin, D., Young, S.S., and Westfall, P.H. (2000). "Using false discovery rate approach in the genetic dissection of complex traits: a response to Weller et al.," Genetics 154, 1917-1918.
  29. Dempsey, P.G., Ayoub, M.M., and Westfall, P.H. (1998). "Evaluation of the ability of power to predict low frequency lifting capacity," Ergonomics 41, 1222-1241.
  30. Westfall, P.H., Krishen,A. and Young, S.S.(1998). "Using Prior Information to Allocate Significance Levels for Multiple Endpoints," Statistics in Medicine 17, 2107-2119.
  31. Westfall, P.H., Young, S.S. and Lin, D.K.J.(1997). "Forward Selection Error Control in the Analysis of Supersaturated Designs," Statistica Sinica 8, 101-117.
  32. Westfall, P.H. and Soper, K.A.(1998). "Weighted Multiplicity Adjustments for Animal Carcinogenicity Tests," Journal of Biopharmaceutical Statistics 8, 23-44 (with discussions).
  33. Westfall, P.H., Johnson, W.O. and Utts, J.M.(1997). "A Bayesian Perspective on the Bonferroni Adjustment," Biometrika 84, 419-427.
  34. Westfall, P.H. and Gönen, M. (1996). "Asymptotic Properties of ANOVA Bayes Factors," Communications in Statistics, Theory and Methods 25, 3101-3123.
  35. Westfall, P.H. (1997). "Multiple Testing of General Contrasts Using Logical Constraints and Correlations," Journal of the American Statistical Association 92, 299-306. (Find the software I developed for this paper here.)
  36. Westfall, P.H. and Wolfinger, R.D.(1997). "Multiple Tests with Discrete Distributions," The American Statistician 51, 3-8.
  37. Dempsey, P.G. and Westfall, P.H. (1997). "Developing Explicit Risk Models for Predicting Low-Back Disability: A Statistical Perspective." International Journal of Industrial Ergonomics, 19, 483-497.
  38. Roquebert, J.A., Phillips, R.L., and Westfall, P.H. (1996). "Markets Versus Management: What 'Drives' Profitability?", Strategic Management Journal 17, 653-664.
  39. Westfall,P.H. and Bremer, R.H.(1994). "Efficiency properties of cell means variance component estimates," Journal of Statistical Planning and Inference 38, 159-178.
  40. Ricketts,R.C. and Westfall,P.H.(1993). "New evidence on the price elasticity of charitable contributions," Journal of the American Taxation Association 15, 1-25.
  41. Westfall,P.H. and Young, S.S.(1993). "On adjusting P-Values for multiplicity," Biometrics 49, 941-945.
  42. Soper,K.A. and Westfall,P.H.(1990),"Monte Carlo estimation of significance levels for Carcinogenicity tests using univariate and multivariate models," Journal of Statistical Computation and Simulation 37, 189-209.
  43. Westfall,P.H. (1990),"Graphical presentation of a basketball game," The American Statistician, 44, 305-307.
  44. Westfall,P.H. and Young, S.S.(1989),"P-value adjustments for multiple tests in multivariate binomial models," Journal of the American Statistical Association, 84, 780-786.
  45. Westfall,P.H.(1989),"Power comparisons for invariant variance ratio tests in mixed ANOVA models," The Annals of Statistics, 17, 318-326.
  46. Westfall,P.(1988),"Robustness and power of tests for a null variance ratio," Biometrika, 75, 207-214.
  47. Westfall,P.(1988),"Comment on Berry," The American Statistician, 42, 88.
  48. Fenech,A. and Westfall, P.(1988),"The power function of conditional log-linear model tests," Journal of the American Statistical Association, 83, 198-203.
  49. Westfall,P.(1987),"A comparison of variance component estimates for arbitrary underlying distributions," Journal of the American Statistical Association, 82, 866-874.
  50. Westfall,P.(1987),"Computable MINQUE-type estimates of variance components," Journal of the American Statistical Association, 82, 586-589.
  51. Westfall,P.(1986),"Asymptotic normality of the ANOVA estimates of components of variance in the nonnormal, unbalanced hierarchical mixed model," The Annals of Statistics, 14, 1572-1582.
  52. Westfall,P.(1985),"Simultaneous small sample multivariate Bernoulli confidence intervals," Biometrics, 41, 1001-1013.

Articles in Books

  1. Westfall, P., Kropf, S., and Finos, L. (2004).  Weighted FWE-controlling methods in high-dimensional situations.   In Recent Developments in Multiple Comparison Procedures, Institute of Mathematical Statistics Lecture Notes-Monograph Series, Vol. 47, Y. Benjamini, F. Bretz, and S. Sarkar, eds., 143-154.
  2. Westfall, P. (2005).  Combining P-Values. Encyclopedia of Biostatistics, 2nd edition, Armitage, P. and Colton, T. (eds), Wiley: Chichester. pp. 987-991.
  3. Westfall, P. and Bretz, F. (2003).  Multiplicity in Clinical Trials.  Encyclopedia of Biopharmaceutical Statistics, second edition, Shein-Chung Chow, ed., Marcel Decker Inc., New York,  pp. 666-673.
  4. Dempsey, P.G., Sorock., G.S., Ayoub, M.M., Westfall, P.H., Maynard, W., Fathallah, F., and O’Brien, N. (2002). Prospective Investigation of the Revised NIOSH Lifting Equation (pp. 77-81). In P.T. McCabe (ed.)  Contemporary Ergonomics 2002. London: Taylor and Francis.
  5. Westfall, P.H., Zaykin, D.V., and Young, S.S. (2001). Multiple tests for genetic effects in association studies. Methods in Molecular Biology, vol. 184: Biostatistical Methods, pp. 143-168. Stephen Looney, Ed., Humana Press, Toloway, NJ.
  6. Hochberg, Y. and Westfall, P.H. (2000).  "On Some Multiplicity Problems and Multiple Comparisons Procedures in Biostatistics,"  P.K. Sen and C.R.Rao,eds., Handbook of Statistics, vol 18,  Elsevier Sciences B.V. pp. 75-113.
  7. Westfall,P.H.(1994). "Asymptotic efficiencies of MINQUE and ANOVA Variance Component Estimates in the Nonnormal Random Model," Proceedings of the International Conference on Linear Statistical Inference LINSTAT '93, 113-119., Kluwer Academic Publishers, The Netherlands.
  8. Dempsey,P.G., Ayoub,M.M., and Westfall,P.H.(1995),"The NIOSH lifting equations: A closer look," Advances in Industrial Ergonomics and Safety, VII, A.C.Bittner, ed., (pp. 705-712), Taylor and Francis, London.

Other Publications

  1. Westfall, P. (2008).  Leading Papers Look at Teaching Bayes to Nonstatisticians, Amstat News, August 2008, 16.
  2. Westfall, P. (2008).  Teaching Bayes to Nonstatistics Graduate Students: Editor’s Note. The American Statistician 62, 189.
  3. Westfall, P. (2008).  May 2008:  Much Ado About ‘How To.’  Amstat News, May 2008, 23.
  4. Westfall, P. and Lund, R. (2008). Voting Leads February Issue,  Amstat News, February 2008, 10.
  5. Westfall, P. and Lund. R. (2007).  Negative Chi Square, Einstein, and the Iraq Conflict,  Amstat News, November 2007, 24.
  6. Westfall, P. (2007).  Black Swan Flies into August Issue,  Amstat News, July 2007, 18.
  7. Westfall, P. and Hilbe, J. (2007).  The Black Swan: Praise and Criticism.  The American Statistician 61, 193-194.
  8. Westfall, P., Desmone, R., Frey, J., and Stefanski, L. (2007).  ASA tries out promotions strategy on two May articles, Amstat News, May 2007, 20-21.
  9. Westfall, P.H. (2007).  The American Statistician in 2006, The American Statistician 61, 103-104.
  10. Westfall, P. (2007).  Official Statistics and . Amstat News 356, 12.
  11. Westfall, P. (2006).  Sandwiches, Outliers, and Graphs,  Amstat News 354, 9.
  12. Westfall, P. (2006).  Messy data invade August issue of TAS, Amstat News 350, 7.
  13. Westfall, P. (2006).  Hurricane forecasting kicks off inaugural interdisciplinary section, Amstat News 347, 19.
  14. Westfall, P. (2006).  The American Statistician moves in a new direction, Amstat News 346, 17.
  15. Westfall, P. (2006).  Editorial, The American Statistician 60, 1-2.
  16. Bremer, R., Perez, J., Smith, P. and Westfall, P., (2004).  Grid Computing at Texas Tech University using SAS.  Proceedings of the14th Annual  South- Central SAS User’s Group Regional Conference, 64-72.  (PowerPoint presentation slides here.)
  17. Wiens, B., Dmitrienko, A. and Westfall, P. (2004).  Fallback and Gatekeeping Strategies for Primary and Secondary Endpoints.  To appear in Proceedings of the American Statistical Association, Biopharmaceutical Subsection.
  18. Tamhane, A.C. and Westfall, P.H. (2004).  Editorial Preface.  J. Statist. Plan. and Inf. 125, 1.
  19. Westfall, P.H., Lindborg, S.R., Shen, W. and Offen, W. (2003).  Reply to Statistical Analysis Plan in Winter 2002 Biopharmaceutical Report.  Biopharmaceutical Report, 11(2), p. 8.
  20. Westfall, P.H. and Tamhane, A.C.(2003).  Introduction to Special Issue.   Journal of Biopharmaceutical Statistics, 13(4), preface (4 pp.).
  21. Westfall, P.H. (2003).  The multiplicity issue in hypothesis tests.  Bulletin of the International Chinese Statistical Association, 38-42, July 2003.
  22. Westfall, P.H. (2001).  From Farms to Pharmaceuticals:   Multiple Comparisons Enters the 21st Centruy.  Proceedings of the Thirteenth Annual Kansas State University Conference on Applied Statistics in Agriculture, 1-15.
  23. Westfall, P.H., Tobias, R.D., and Bretz, F. (2000).  Estimating Directional Error Rates of Step-Wise Multiple Comparisons Methods Using Distributed SAS Computing and Variance Reduction.   Data Analysis papers and presentations, SAS Institute, Inc.
  24. Dempsey, P.G., Sorock., G.S., Cotnam, J.P., Ayoub, M.M., Westfall, P.H., Maynard, W., Fathallah, F., and O’Brien, N. (2000). Field Evaluation of the Revised NIOSH Equation. In: Proceedings of the XIVth Triennial Congress of the International Ergonomics Association and 44th Annual Meeting of the Human Factors and Ergonomics Society (5•724-5•727). Santa Monica, CA: Human Factors and Ergonomics Society.
  25. Westfall, P.H. and Tobias, R.D.(1999), Advances in Multiple Comparisons and Multiple Tests Using the SAS® System, Proceedings of the 24th Annual SAS® User's Group International Conference, pp. 1525-33.
  26. Gönen, M., and Westfall,P.H.(1998), "Bayesian Multiple Testing of Multiple Endpoints in Clinical Trials," Proceedings of the American Statistical Association, Biopharmaceutical Subsection, 108-113.
  27. Pearce,G.L. and Westfall, P.H.(1997), "Identifying Clinical Practice Improvement Opportunities Using Resampling Techniques in PROC MULTTEST," Proceedings of the Fifth Annual Conference of the SouthEast SAS® User's Group. pp. 394-99.
  28. Pearce,G.L. and Westfall, P.H.(1997), "Using Resampling Techniques in PROC MULTTEST to Evaluate Surgeon Specific Results Following Coronary Artery Bypass Graft (CABG) Surgery," Proceedings of the 22nd Annual SAS® User's Group International Conference, pp. 1288-92. Winner of Honorable Mention in the "Statistics, Data Analysis, and Modeling" Section.
  29. Gönen, M., and Westfall,P.H.(1996), "Bayes Factors for Variance Components," Proceedings of the American Statistical Association, Bayesian Subsection, 7-11.
  30. Dempsey,P.G., Ayoub, M.M., and Westfall, P.H. (1996), "Evaluation and Comparison of Static and Dynamic Predictors of Lifting Capacity. In Proceedings of the 4th Pan Pacific Conference on Occupational Ergonomics, pp. 360-363.
  31. Westfall, P.H. and Soper, K.A. (1995), "Multiple Binary Tests When Some Events are Rare," Proceedings of the American Statistical Association, Biopharmaceutical Subsection, 89-94.
  32. Wu, J.J., Westfall, P.H., and Ricketts, R.C. (1995), "Random Coefficient Regression Modeling of the EY/UM Taxpayer Panel via the EM Algorithm," Proceedings of the American Statistical Association. Bus. and Econ. Stat. Subsection, 216-221.
  33. Westfall,P.H. and Soper,K.A.(1994), "Nonstandard uses of PROC MULTTEST: Permutational Peto tests; Permutational and unconditional t and binomial tests," Proceedings of the 19th Annual SAS® User's Group International Conference, 986-989.
  34. Bremer,R.H. and Westfall,P.H.(1990),"Explicit cell means Representation of MINQUE (Infinity) in factorial models," Proceedings of the American Statistical Association, Computing Subsection, 122-125.
  35. Westfall, P.H, Lin, Y. and Young,S.S.(1990),"Resampling-Based Multiple Testing," Proceedings of the 15th Annual SAS® User's Group International Conference, 1359-1364.
  36. Westfall,P.H.,Lin,Y.,and Young, S.S.(1989),"A procedure for the analysis of multivariate binomial data with adjustments for multiplicity," Proceedings of the 14th Annual SAS® User's Group International Conference, 1385-1392.
  37. Westfall,P.H. and Lin, Y.(1988),"Estimating optimal continuity corrections in run time," Proceedings of the American Statistical Association, Computing Subsection, 297-298.
  38. Westfall,P.H.,Mason,A.D., and Pruitt, B.A.(1988),"Graphical analysis of longitudinal mortality in a burn center," Proceedings of the American Statistical Association, Computing subsection, 297-298.
  39. Westfall,P. and LuValle, M.(1985),"Estimating the simultaneous confidence level of multivariate normal intervals," American Statistical Association Proceedings of the Statistical Computing Section, 271-274.
  40. Westfall,P.H.(1993), Review of Variance Components, by Searle, Casella and McCulloch (Wiley), Journal of Marketing Research 30, 258-259.
  41. Westfall,P.H.(1992), Review of Bayesian Forecasting for Dynamic Models, by West and Harrison (Springer-Verlag), Technometrics 34, 5-116.

Funded Works

  1. "Development of SAS Grid-Enabled System for Clinical Trials Simulation," $80,000, funded by a pharmaceutical company, PI.
  2. "Selenium Dietary Supplements in the Reduction of Arsenic Body Load: Application in the Mitigation of Arsenicosis and Cancer-linked Skin Lesions in Children and Adults:  A Pilot, Randomized, Placebo-Controlled, 48-week, Longitudinal, Phase III Clinical Intervention Trial," funded by NIH, team member.
  3. "Business Intelligence Project," $25,000, funded by Texas Tech University Graduate School, 2004.
  4. "MCP2002 Conference", ($3000) funded by Texas Tech University College of Business Administration, 2002.
  5. "Field Evaluation of NIOSH Lifting Equations", ($550,000), funded by NIOSH, completed 9/98, Co-PI with M. Ayoub.
  6. "Evaluation of False Positive Rates Using Historical Data Bases," ($13,500), funded by Merck Research, completed 5/97, PI.
  7. "Extension of Evaluation of False Positive Rates Using Historical Data Bases," ($2,000), funded by Merck Research, to be completed 1/98, PI.
  8. "Allocating Error Rates and Sample Sizes to Maximize Significance," ($4,000), funded by Glaxo-Wellcome, completed 9/96, PI.
  9. "Evaluating of Determinants of Lifting Capacity" ($25,000), funded by NIOSH, completed 12/95, co-PI with Patrick Dempsey.
  10. "PROC MULTTEST Upgrade," ($17,000), completed 11/95. Funded by a consortium of Pharmaceutical companies.
  11. "Westfall book project," ($17,000), funded by SAS® Institute, Merck & Co, Glaxo, Upjohn, Wyeth-Ayerst, Pfizer, and Burroughs Wellcome, to support writing the book Resampling-Based Multiple Testing. Completed 1/93 with publication of book by Wiley-Interscience.
  12. "Development of multiplicity adjustments for tests used in clinical and pre-clinical analyses," ($36,000), from the Pharmaceutical Manufacturer's Association. Completed 8/1989. Developed SAS/STAT® Software PROC MULTTEST.
  13. "Significance tests and adjustments for multiplicity in Carcinogenicity studies," ($60,000), from the Pharmaceutical Manufacturer's Association. Completed 8/1988. Developed SAS® Software PROC MBIN.
  14. "Graduate Student Summer Research Grant," ($800), from Texas Tech University to support Oong-Hyun Sung. Completed a research paper, "Consistent simultaneous confidence bands in multiple logistic regression," 1987.

Other Works: Invited Presentations, Keynote Addresses, Presentations, and Shortcourses 

  1. “Reliability-Constrained Latent Structure Models,” presented at the TTU Statistics seminar, 2/08.  Here is a zipped file with the presentation and the SAS files.  Here is the paper.
  2. “Multiple Testing of General Contrasts: Truncated Closure and the Extended Shaffer-Royen Method,” presented at the 5th international conference on multiple comparison procedures, July 9-11, Vienna, Austria. (Joint work with Randy Tobias.)
  3. A Course in Multiple comparisons and Multiple Tests, presented for the Joint Statistical Meetings, 8/07, Salt Lake City.
  4. " 'Bad' Statistical Methods: What are the costs?", presented at the Joint Statistical Meetings, 8/06, Seattle, with D. Freedman, S. Young, M. Foulkes, and J. Shaffer.
  5. A Course in Multiple comparisons and Multiple Tests, presented for the Joint Statistical Meetings, 8/06, Seattle.
  6. "Using All Them Machines: Grid Computing for Statistical Applications," Roundtable luncheon presented at the Joint Statistical Meetings, 8/06, Seattle, joint with Randy Tobias.
  7. "Clinical Trials Simulation: Overview and Demonstration of a New System," Stephan Ogenstad (speaker), Peter H. Westfall, Kuenhi Tsai, Leif Bengtsson, Scott Moseley and Min Yao, Alin Tomoiaga and Lan Zhang, presented at the International Biometric Society Eastern North American Region (ENAR) conference, 3/27/06, Tampa.
  8. "Multiplicity and Replicability," presented at the American Association for the Advancement of Science meeting, St. Louis, 2/06.
  9. “Strong Control of the Familywise Type I Error Rate in DNA Microarray Analysis Using Exact Step-Down Permutation Tests”,  Presented at the TTU Statistics seminar series, 10/12/05
  10. “Grid Deployment to Support the Research Enterprise,”  Invited presentation at the Global Grid Forum 15, 10/5/05
  11. A Course in Multiple comparisons and Multiple Tests, presented for the Joint Statistical Meetings, 8/05, Minneapolis. (Winner of "Excellence in Continuing Education Award")
  12. “Familywise Error Rate or False Discovery Rate in Large-Scale Simultaneous Testing:  What is the Best Statistical Method?” presented at the Conference for Texas Statisticians, April 1, 2005.
  13. “Multiplicity in the Design and Analysis of Clinical Trials:  Best Practices, Regulatory Standards, and Good Science,” Keynote Address of the Purdue Biostatistics Symposium, 1/11/05.
  14. “FDR for infinitely many contrasts in linear models,” presented at the SMU statistics seminar series, 11/12/04.
  15. A Course in Multiple comparisons and Multiple Tests, presented for the United States Department of Agriculture, 8/11-12, ‘04, Lubbock, TX.
  16. "Analytical power computation of closed tests using Quasi-Monte Carlo integration", Frank Bretz and Peter Westfall, Presented by Frank Bretz at PARA'04, Workshop On State-Of-The-Art In Scientific Computing, June 20-23, 2004, Technical University of Denmark.
  17. “Optimality Considerations in Testing Massive Numbers of Hypotheses”, presented at the second Lehmann Syposium, Rice, May 04.
  18. “Decision-Theoretic Views on Switching Between Superiority and Non-Inferiority Testing,”  Presented at the 27th Annual Midwest Biopharmaceutical Workshop,  Muncie, Ind, May '04.
  19. “Business Intelligence:  Fad, Oxymoron, or Something Useful?” Presentation to American Production and Inventory Control Society, Lubbock chapter, 2/04.
  20. “Resampling Methods for Separating Signals from Noise in Data Mining Applications, ” Presented at General Motors R&D, 10/2003.
  21. “Data Mining using Recursive Partitioning,” Presented at the TTU Math department, 10/2003.
  22. “Using PROC MULTTEST for Data Mining,” presented at the SAMSI conference, 9/2003.
  23. “Sequential Testing approaches for Clinical Trials,” Presented at the JSM meetings, 8/2003.
  24. “Reverse Multiplicity: An Academic View,” Presented at the JSM meetings, 8/2003.
  25. “Hard vs. Soft Science:  Studies in Biometrics and Psychometrics,” presented at the CoBA MIS seminar, Lubbock, TX 2/7/03.
  26. “Bootstrap event study tests,” presented at CoBA Finance seminar,  Lubbock, TX 1/24/03.
  27. “Sequential testing Approaches for Clinical Trials,” and invited presentation at the GlaxoSmithKline Biostatistics and Data Sciences Advisory Board Conference, October 28-29, 2002, Cary, NC.
  28. "Multiple Testing Methods that are useful in Clinical Trials", a 3 hour presentation to the 25th Annual Midwest Biopharmaceutical Workshop,  Muncie, Ind, May '02.
  29. "A Course in Multiple Comparisons and Multiple Tests," a 3-hour course presented to FDA statisticians, Rockville, MD, May, '02.
  30. "Issues in Phamacogenomics", invited, presented at the PhRMA Biostatistics and Data Management Fall Workshop, November '01, Bethesda.
  31. "Multiple Testing Procedures that Maximize Predictive Power," invited presentation at the "New horizons in multiple comparisons procedures" conference, Temple U., Philadelphia, August 01.
  32. "Some Bayesian perspectives on the multiple comparisons problem," invited presentation to the Novartis statistics group, Basel, Switzerland, 6/5/01.
  33. "Testing hypotheses using resampling," invited presentation to the Basel Biometric Society meeting, Basel, Switzerland, 6/6/01.
  34. "Multiple Tests for Genetic Effects in Association Studies," invited, presented at the Princeton-Trenton ASA chapter, Spring Meeting, 5/9/01.
  35. "Regression-based inference for association of haplotype frequencies with the phenotype," by Zaykin, Westfall, and Young, presented at the 10th Int Congress of Human Genetics, Vienna, May 15-19 2001, by Dmitri Zaykin.
  36. "Improvements on Event Study Tests: Bootstrapping the Multivariate Regression Model," presented at the Eastern Finance Association meeting by Scott Hein, April 25, 2001, Charleston SC.
  37. "Use of Recursive Partitioning in Genomics" S. Stanley Young* (speaker), GlaxoWellcome, Peter Westfall, Texas Tech University, and Dmitri Zaykin, GlaxoWellcome, presented at the ENAR conference, March 2001, Charlotte, NC.
  38. "Closed Testing Procedures and PROC MULTTEST," invited address presented at the ENAR conference, March 2001, Charlotte, NC.
  39. "From Farms to Pharmaceuticals:  Multiple Comparisons Enters the 21st Century," keynote address at the Conference on Applied Statistics in Agriculture, April 30, 2001, Manhattan, Kansas.
  40. "Gatekeeping Strategies for Making Strong Claims in Clinical Trials," presented at the DIA workshop, March 12, 2001, Savannah GA.
  41. "Directional Error Rates of Correlated Stepwise Tests", presented at the Sixth Great Lakes Symposium on Applied Statistics, Kalamazoo, Michigan, 10/00. (Joint with R. Tobias and F. Bretz).
  42. "Primary and Secondary Endpoints in Clinical Trials: Proper and Improper Gatekeeping Strategies", presented at the FDA/Industry workshop, Bethesda, Maryland, 9/00.
  43. "New Bayesian and Frequentist Software Solutions for Multiple Inferences," presented at the second international multiple comparisons conference, Berlin, Germany, 6/00.
  44. "Closed testing via resampling the extreme pivotals," 1-hour session presented at Venice, Italy, 6/00.
  45. "Correspondences between frequentist and Bayesian Methods for Multiple Comparisons and Multiple Tests," 1-hour session presented University of Padova, Italy, 6/00.
  46. "Closed Testing Procedures and PROC MULTTEST," 1-hour presentation to Biostatistics department at Memorial Sloan-Kettering Cancer research center, New York, 5/2000.
  47. "Multiple comparsions and multiple tests:  The state of the practice", presented at the DIA workshop, March 00, Hilton Head.
  48. "Closed testing via resampling the extreme pivotals," 2-hour session presented at the Multiple Methods conference, Mainz, Germany, 10/99.
  49. "Correspondences between frequentist and Bayesian Methods for Multiple Comparisons and Multiple Tests," 1-hour session presented at the Multiple Methods conference, Mainz, Germany, 10/99.
  50. "Introduction to Mixed effects and repeated measures models for continuous and discrete outcomes using PROC MIXED and PROC NLMIXED," a 2 hour shortcourse given to Glaxo Wellcome, Research Triangle Park, North Carolina, 7/99.
  51. " 'Bioequivalence trials, intersection-union tests, and equivalence confidence sets' - a discussion of a paper by Berger and Hsu," a one hour seminar presented to Glaxo Wellcome, Research Triangle Park, North Carolina.
  52. "You must consider multiplicity when planning and analyzing clinical trials data," a two-hour session presented to clinicians and statisticians of Glaxo-Wellcome-Canada, 8/99
  53. "A Course in Multiple Comparisons", an 8-hour course on multiple comparisons taught at Glaxo Wellcome, Research Triangle Park, North Carolina; also to GW-Canada, 7/99-8/99
  54. "Strategies for Controlling Error Rates when Analyzing Primary and Secondary Endpoints," a 1.5 hour seminar presented at Glaxo Wellcome, Research Triangle Park, North Carolina, 6/99
  55. "Multiple Testing of Point Null Hypotheses: A Bayesian Approach," SRCOS/ASA Summer Research Conference, Mountain View, Arkansas, June 1999. (Joint with Mithat Gönen, presented by Mithat Gönen.)
  56. "Advances in Multiple Comparisons and Multiple Tests Using the SAS® System," presented at the SAS® User's Group International (SUGI) meeting, April 1999, Miami.
  57. "Multiple testing issues in drug experiments: Is there any correspondence between Bayesian and frequentist methods?" presented at the ENAR conference, March 1999, Atlanta.
  58. "Multiple Comparisons/ Multiple Tests Workshop," one-day shortcourse presented at Covance, March 18, 1999.
  59. "Bootstrap and Resampling Methods," one-day shortcourse presented at Novartis, 3/19/99.
  60. "Multiple Comparisons: Applications and Case Studies," two-day shortcourse to be presented at the 1998 Deming Conference, Atlantic City, NJ, with Dror Rom, 12/98.
  61. "Resampling Methods in the Pharmaceutical Industry; Applications of Resampling Methods in the Pharmaceutical Industry," Keynote address and Plenary session of the Midwest Biopharmaceutical Statistics Workshop, 5/1998.
  62. "Multiple Testing in Clinical Trials," Distinguished Speaker Series of Applied Logic Associates Inc., Houston, 1/98.
  63. "Multiple Comparisons," A Roundtable Luncheon at the Joint Statistical Meetings, in Anaheim, 8/97.
  64. "Multiple Comparisons: Applications and Case Studies," two-day shortcourses presented with Dror Rom, 3/97.
  65. "Multiple Testing with Clinical Applications," a one-day short course presented at Glaxo-Wellcome, 11/96.
  66. "Multiple Discrete Tests and Rare Events," Presented at the European Drug Information Association Conference, Brugge, Belgium, 3/96.
  67. "Strategies to Improve Power with Multiplicity-Adjusted Tests," presented at the Midwestern Biopharmaceutical Statistics Conference, 5/96.
  68. "Multiple Testing with PROC MULTTEST of SAS/STAT®," a 1/4-day short course presented at the American Statistical Association Joint Meetings, Chicago, 8/96.
  69. "Bootstrapping P-values," presented at the Liberty Mutual Speaker's Corner, Hopkinton, MA, 7/96.
  70. "Forward Selection Error Control in the Analysis of Supersaturated Designs," presented at the Amer. Stat. Assoc. Joint meetings, Chicago, 8/96.
  71. "Acceptable and Unacceptable Uses of Statistics: The Views of W. Edwards Deming," presented at the South Carolina chapter of the American Statistical Association Meeting, 4/96.
  72. "Quality by the Numbers," presented at the National Quality Forum, Lubbock, TX 10/95.
  73. "PROC MULTTEST, Applications and Improvements," presented at the Midwestern Biopharmaceutical Statistics Conference, 5/95.
  74. "Resampling-based multiple testing," a two-day short course presented for the Intel Statistics Summit, Santa Clara, CA, 8/94.
  75. "Resampling-based multiple testing," (joint with S.S.Young), a one-day short course presented to attendees of the American Statistical Association Joint Meetings, Toronto, Canada, 8/94.
  76. "Multiple Testing in the Analysis of Supersaturated Designs: Problems and Resampling Solutions," Presented to the Conference on Statistics in Industry, Chapel Hill, NC, 6/94.
  77. "Resampling-based multiple testing," (joint with S.S.Young), a half-day short course presented to attendees of the Interfaces Conference, Raleigh, NC, 6/94.
  78. "Resampling-based multiple testing in clinical trials," (joint with S.S.Young), a one-day short course presented to attendees of the Drug Information Association Conference, Hilton Head, S.C, 3/94.
  79. "Asymptotic efficiency of IQUEs in mixed ANOVA models under nonnormality," International Conference on Linear Statistical Models, held in Poznan, Poland, 6/93.
  80. "Bayes/Frequentist Correspondences in Multiple Testing," presented at the Midwestern Biopharmaceutical Statistics Conference, Muncie, Indiana, 5/93.
  81. "Multiplicity adjustment in clinical and pre-clinical applications: concepts, methods, and software," a three hour short course presented to statisticians at Merck, Sharp & Dohme Research Laboratories, 3/93, and to statisticians at Abbott Laboratories, 11/92.
  82. "Resampling-based multiple testing," (joint with S.S.Young), a two-day short course presented to attendees of the Conference on Applied Statistics, Atlantic City, 12/92.
  83. "The use of bootstrap and permutation resampling in the testing of multivariate binomial and continuous data," (joint with S.S.Young), a three hour short course presented to attendees of the Conference on Applied Statistics, Atlantic City, 12/89.
  84. "Bootstrapping individual and simultaneous hypothesis tests," a three hour short course presented to the Biostatistics group of Merrell Dow Research Institute, Cincinnati, in 3/89.
  85. "Simulation-Based Step-Down Hypothesis Testing," an invited speech to the Cincinnati Chapter of the American Statistical Association, 3/89.
  86. "PROC MBIN: Analysis of multivariate binary data with adjustments for multiplicity," a 1.5 hour short course given to statisticians at the U.S. Food and Drug Administration, 3/89.
  87. "The use of multiplicity adjustments in some clinical applications: ideas, techniques, and software," a 1.5 hour short course presented to the statistics group at the Upjohn Company, 3/89.
  88. "Statistical properties and computational aspects of variance ratio tests in mixed linear models," invited paper presented at the Joint Statistical Meetings, New Orleans, 8/88.
  89. "PROC MBIN: Resampling software for multiplicity adjustment," a speech to the Biostatistics Subsection of the Pharmaceutical Manufacturer's Association, Clearwater, 8/88.
  90. "Controlling False Positives in Carcinogenicity Studies," a 1.5 hour short course presented to statisticians and toxicologists at Smith Kline & French Laboratories, 7/87.
  91. "Multivariate Binomial Testing," keynote address to the Midwestern Biopharmaceutical Statistics Conference, 5/87.


Dissertations and Theses Chaired

1.      Yonggang Lu, "Essays on Multiple Comparisons and Model Selection," completed 10/07

2.      Tomoiaga, Alin.  "Clinical Trials Simulation."  Master's thesis in Mathematics and Statistics, co-chaired with Magdalena Toda, completed 11/06.

3.      Fafouti-Park, E. "Investigation of Bootstrap Estimates of the Parameters, their Standard Errors and Associated Confidence Intervals of Structural Equation Models with Ordered Categorical Variables," completed 11/99.

4.      Gönen, M. "Bayes Factors for Variance Components in the Mixed Linear Model," completed 9/96.

5.      Wu, J.J. "Maximum Likelihood Estimation in the Random Coefficient Regression Model via the EM Algorithm," 1996.

6.      Sung, O.H. "Evaluating Statistical Classification Models with Application to Corporate Bond Ratings Classifications," 1989.

7.      Ren, L.Y. "Asymptotic Relative Efficiencies of the Rank-Score Procedure in the Multivariate Two-Way Layout Problem with Interactions," 1986. (co-chaired with Steve Hora)

Selected Texas Tech Service Activities

Chair, Inter-College Study Group to Evaluate Texas Tech University Statistics Courses
Director, SACS compliance documentation, Texas Tech University
Faculty Senate Vice President
Chair, Faculty Incentive Grant Committee
Chair, Teaching Learning and Technology Delivery Systems Committee
Chair, Faculty Teaching Productivity Committee
Chair, SACS Committee on Instructional Technologies
Library Steering Committee
Tenure Hearing Committee
University Center Steering Committee
College of Business Administration Admissions and Standards Committee