PhD

2008 

Yu-Ling Chang. Fast Bayesian Methods for Genetic Mapping Applicable for High-Throughput Datasets. Advisor(s) Fred Wright

2007

Jonathan A. L. Gelfond. Bayesian Model-based Methods for the Analysis of DNA Microarrays with Survival, Genetic, and Sequence Data. Advisor(s) Joseph G. Ibrahim & Fei Zou

Bevan Emma Huang. Statistical Aspects of Haplotype-Based Association Studies. Advisor(s): Danyu Lin

Sangwook Kang. Statistical Methods for Case-Control and Case-Cohort Studies with Possibly Correlated Failure Time Data. Advisor(s): Jianwen Cai

Sola Park. Accounting for Bias and Uncertainty in Power for Multivariate Gaussian Linear Models. Advisor(s): Keith E. Muller

2006

Willliam T. Barry. Resampling-Based Tests of Functional Categories in Gene Expression Studies. Advisor(s): Fred A. Wright & Andrew B. Nobel

Gheorgha Luta. Empirical Likelihood-Based Adjustment Methods. Advisor(s): Pranab Sen & Gary Koch

Michael Pennell. Bayesian Semiparametric Methods for Longitudinal, Multivariate and Survival Data.   Advisor(s): David Dunson

2005

Jamie Lynn Bigelow. Bayseiab Semiparametric Methods for Functional Data. Advisor(s) Amy Herring & David Dunson

George Capuano. A Joint Latent Autoregressive Model for Patient Dropout and Longitudinal Health Related Quality of Life Subject to Informative Missingness.   Advisor(s): Pranab K. Sen

Yueh-Yun Chi. Bayesian Methods for Longitudinal and Survival Data with Applications to Clinical Trials and Genomics. Advisor(s): Joseph Ibrahim

Qingxia Chen. Theory and Inference for Parametric and Semiparametric Methods in Missing Data Problems.   Advisor(s): Joseph G. Ibrahim

Guoqing Diao. Semiparametric Models for Mapping Quantitative Trait Loci in Experimental Designs and Human Pedigrees.  Advisor(s): Danyu Lin

Emily Kistner. A Method for Using Nuclear Families to Test Linkage and Association, Maternal Effects, and Parent-of-Origin Effects Between a Marker and a Quantitative Trait.  Advisor(s): Larry L. Kupper

Andrew Sterrett. Hidden Markov Models and Sequential Imputation to Infer the Locaiton of Tumor Loci.  Advisor(s): Fred A. Wright

2004

Chaehyung Ahn. Detecting Linked Changes in Fast Evolving Genomes.   Advisor(s): Francoise Seillier-Moiseiwitsch and Gary Koch

Stephanie L. Cano. A Mixed Model Method for Binary Longitudinal Data Incorporating a Random Changepoint.   Advisor(s): Pranab K. Sen and Chirayath Suchindran

Shibing Deng. Some Aspects on Linear Model Analysis of Microarray Gene Expression Data. Advisor(s): Young Truong

Matthew Gurka. The Box-Cox Transformation in the General Linear Mixed Model for Longitudinal Data. Advisor(s): Lloyd J. Edwards

Inkyung Jung. Robust Inference in Unbalanced Heteroscedastic One-Way Random Effects Models Using Rank-Based Methods.   Advisor(s): Pranab K. Sen

Brian Neelon. Bayesian Order Restricted Inference.   Advisor(s): Drs. David B. Dunson and Lawrence L. Kupper

Zhiying Jean Pan. Regression Analysis for Complex Longitudinal Survey Data.   Advisor(s): Danyu Lin

Lily Wang. Some Statistical Aspects of the Analysis of Genomic Sequences.
Advisor(s): Pranab K. Sen

2003

Tejas Desai. Information Attainable for Some Randomly Incomplete Data Models.   Advisor(s): Pranab K. Sen

Jianhua Hu. Identifying Differentially Expressed Genes, Computing Gene Expression Indexes and Sample Size in Microarray Experiments.   Advisor(s): Fred Wright

Szu-Yun Leu. Non-Homogeneous Poisson Process Models For Genetic Crossover Interference. Advisor(s): Pranab K. Sen

Kai Wang. Designs for Two-Dimensional Phase I Trails in Onocology. Advisor(s): Anastasia Ivanova

Xiaofei Wang. Semiparametric Methods for Biased Sampling Schemes In Epidemiologic Studies With Auxiliary Covariates.  Advisor(s): Haibo Zhou

Guosheng Yin. Quantile Inference, Regression and Additive Hazards Models in Multivariate Survival Analysis.  Advisor(s): Jianwen Cai

Richard Conrad Zink. Correlated Binary Regression Using Orthogonalized Residuals.   Advisor(s): Bahjat F. Qaqish

2002

Carlos Henriquez-Roldan. Marginally-Specified Conditional Models for Dependent Binary Responses.  Advisor(s): Bahjat F. Qaqish

Lan Kong. Analysis of Failure Time Data From Case-Cohort Studies With Semiparametric Transformation Models.   Advisor(s): Jianwen Cai

Sean O'Brien. The Effects of Model Flexibility and Covariate Categorization on Statistical Efficiency. Advisor(s): Lawrence L. Kupper

Doug Schaubel. Semiparametric Rate and Hazard Regression Methods for Sequentially Ordered Multivariate Failure Time Data. Advisor(s): Jianwen Cai

2001

Russell W. Helms. Homeostatic Control of Normal Organ Size in Mathematical Models of Carcinogenesis. Advisor(s): Christopher J. Portier and Lawrence L. Kupper

Douglas J. Taylor. "Mixture Models for Occupational Exposure Data with Limits of Detection". Advisor(s): Lawrence L. Kupper

Jianmin Wang. Using Probability Sampling Strategies with Application to Adolescent Health Studies.  Advisor(s): P.K. Sen and C. Suchindran

Mark A. Weaver. Semiparametric Methods for Continuous Outcome Regression Models With Covariate Data From An Outcome-Dependent Subsample.
Advisor(s): Haibo Zhou

2000

F. DuBois Bowman. A Strategy for Obtaining Inferences About Projected Completors in Longitudinal Studies With Nonignorable Dropout.  Advisor(s): Paul W. Stewart and Pranab. K. Sen

Joseph Galanko. Nonparametric Analysis of Covariance with Discrete Nonconcomitant Covariables. Advisor(s): Pranab K. Sen

Wendy Greene. Measurement Error in Covariates in the Marginal Failure Time Model for Multivariate Data.  Advisor(s): Jianwen. Cai

Karen Kesler. Robust Methods for Multivariate Failure Time Models in the Presence of Variable Cluster Size and Weighted Sampling.  Advisor(s): Pranab K. Sen

Mark McBride. A Study of the Behaviors of Test Statistics in the Binary Logistic Regression Model, the Proportional Odds Ordinal Logistic Regression Model, and the ProportionalHazards Model.  Advisor(s): K. Lee

Randall Rieger. Within Cluster Paired Resampling.  Advisor(s): C. Weinberg

Antonio Sanhueza. Robust M-Procedures in Nonlinear Regression Models.
Advisor(s): Pranab K. Sen

Frank Ye. The Equal Slopes Test: A Statistical Method for Evaluating Modifying Factors in Quantitative Risk Analysis. Advisor(s): C.Portier

Ming Zhong. Measurement Error in the Cox Regression Model. Advisor(s): Pranab K. Sen and Jianwen Cai

1999

Chris Coffey. Internal Pilot Study Design and Analysis for Linear Models with Gaussian Errors and Fixed Predictors. Advisor(s): K. Muller

Tonya Sharp King. Developing Robust Estimators of the Concordance Correlation Coefficient.  Advisor(s): V. Chinchilli

James MacDougall. Nonparametric Rank-Based Analysis of Longitudinal Data. Advisor(s): Pranab K. Sen

1998

Elaine B. Hoffman. Within Cluster Resampling. Advisor(s): C. Weinberg

Hsiao-Chuan Tien. Association Patterns in Bivariate Survival Models with Interval Censoring.  Advisor(s): Pranab K. Sen

Brent Shelton. Linear Models Estimation for Incomplete Covariates and Responses.
Advisor(s): T. Morgan

1997

Limin Clegg. Marginal Models for Multivariate Failure Time Data with Generalized Dependence Structure.   Advisor(s): Jianwen Cai & Pranab K. Sen

Maha Karnoub. Understanding Dependencies Among Mutations Along the HIV Genome. Advisor(s): F. Seillier-Moiseiwitsch

Mario Chen Mok. Logistic Dose-Response Models Under Compliance Measurement Error for Some Problems in Inhalation Toxicology.
Advisor(s): Pranab K. Sen

Hildete Prisco Pinheiro. Modeling Variability in the HIV Genome. Advisor(s): F. Seillier-Moiseiwitsch

DrPH

2007

Matthew J. Gribbin. Better Power Methods for the Univariate Approach to Repeated Measures. Advisor(s) Keith E. Muller

Hae-Young Kim. Operating Characteristics of Group Testing Algorithms for Case Identification in the Presence of Test Error. Advisor(s): Michael Hudgens

James C. Slaughter. Bayesian Latent Variable Methods for Logitudinal Processes with Applications to Fetal Growth. Advisor(s): Amy H. Herring

2006 

Leila D. A. F. Amorim.Estimating Time-Varying Treatment Effect for Recurrent Childhood Diseases. Advisor(s): Jianwen Cai & Donglin Zeng

Rebekkah S. Dann.  Methods for Strengthening the Design and Analysis of Clinical Trials to Show Non-Inferiority of a New Treatment to a Reference Treatment for a Binary Response Variable. Advisor(s):Gary Koch

James C. Gear.A Test for Detecting Space-Time Clustering and a Comparison with Some Existing Methods. Advisor(s): Dana Quade

2005

Munni Begum. Statistical TK/TK Dose Response Modeling of Toxicity.   Advisor(s): Pranab K. Sen

Bing Lu. Estimating Correlation Parameters in Cluster Intervention Trials with Binary Responses Using Estimating Equations.   Advisor(s): John S. Preisser

2004

Schwartz, Todd. A Study of Sample Size Recalculation With Particular Focus on Active- and Placebo- Controlled Non-Inferiority Trials.   Advisor(s): Jonathan S. Denne

2003

Sean Condon. Spatial Analysis of Birthweight and Infant Mortality. Advisor(s): Chirayath M. Suchindran

Ji-Hyun Lee. Practical Issues Arising in Clustered Data: Modified Gee and Goodness-Of-Fit Test, Overdispersion, and Changepoint Models. Advisor(s): Bahjat F. Qaqish

Jane Monaco. Bootstrap Analysis of Multivariate Failure-Time Data. Advisor(s): Jianwen Cai and James Grizzle

William Kuang-Yao Pan. Multilevel Spatial and Statistical Analyses to Examine the Relationship Between Population and Environment: A Case Study of the Ecuadorian Amazon. Advisor(s): Richard E. Bilsborrow and Chirayath M. Suchindran

Mary (Molly) L. Young. Generalized Estimating Equations (GEE) With Design-Based Correlation Structures for Cluster-Unit Trials. Advisor(s): John Preisser

2002

Marla DeLuca Curran. Statistical Modeling for Genetics: Pharmacogenetics, Molecular Evolution and Complex Traits. Advisor(s): Gary Koch

Seleshi Demissie. Multilevel Models With Binary Responses: An Application to Group Randomized Intervention Trails With Small Number of Clusters.
Advisor(s): Chirayath M. Suchindran

Michael Jiroutek. Improved Sample Size Choice for Confidence Interval Based Inferences and Extensions.  Advisor(s): Keith Muller

2001

Chulaluk Komoltri. Stopping Boundaries in Interim Analyses in Clinical Trials. Advisor(s) Shrikant Bangdiwala

2000

Hrishikesh Chakraborty. HIV Transmission Probability Model and Correlation Between Blood and Seminal Plasma HIV RNA Concentrations. Advisor(s): R. Helms

Rosalie Dominik. Statistical Approaches to the Evaluation of Barrier Contraceptive Effectiveness.  Advisor(s): Jianwen Cai

Laura Helms. Multiple Imputation in Clinical Trials. Advisor(s): C.E. Davis

Lynn Wilkens. Behavior of Measurement Error Correction Models: An Application to Nutritional Epidemiology. Advisor(s): Cirayath M. Suchindran

Steve Wisseh. Statistical Inference from Truncated Recurrent Event Survival Data. Advisor(s): Chirayath M. Suchindran

1999

Lynette Keyes. Small-Sample Approximate Test for Fixed Effects in the General Linear Mixed Model.  Advisor(s): R. Helms

1998

Diane Catellier. Inference for the General Linear Multivariate Model with Missing Data in Small Samples. Advisor(s): K. Muller

Jose Cumsille. Effect of Dichotomizing Continuous Variables in Regression Models. Advisor:(s) Shrikant Bangdiwala

Dina Schreinemackers. Multistate Survival Analysis.   Advisor(s): E. Davis & JianwenCai

1997

Cora Breeden Parker. ROC Methodology Within a Monitoring Framework: An Application to the Monitoring of Thrombolytic Treatment Outcome Following Acute Myocardial Infarction. Advisor(s) E. DeLong & Gary G. Koch

Catherine Tangen. Innovative Strategies for Strengthening Interpretability of Covariance Analysis by Use of Complementary Parametric and Nonparametric Methods. Advisor(s): Gary G. Koch

Lisa Tomasko. Discriminant Analysis with a Structured Covariance Matrix and Random Effects.  Advisor(s): R. Helms

MS

2008

Julie Aldridge.   On Testing the Efficacy of Interventions to Prevent Mother-to-Child Transmission of HIV. Advisor(s): Michael Hudgens

Erika D. Menius.  Comparison of Normalization Methods on Local Laboratory Data in a Multi-Center Clinical Trial. Advisor(s): Karen L. Kesler

Katharine M. Poole.  Investigating Race as a Potential Risk Factor for MRSA and VRE Colonization. Advisor(s): Dennis Wallace

2007

Kevin A. Brown.  Mortality Estimation in Conflict Zones Characterized by Migration: A Simulation-based Investigation. Advisor(s): W. Kalsbeek & R. Billsborrow

Allison M. Deal. Some Statistical Issues in Adapting Sample Designs for Rapid Response Surveillance when Comparing Overlapping Samples. Advisor(s): William Kalsbeek

Zhaowei Hua. Simulation Studies for Cox Proportional Hazards Cure Model. Advisor(s) : Jianwen Cai

Se Hee Kim. Optimal Allocation to Find the Lowest Dose on the Plateau of a Dose-response Curve. advisor(s) Anastasia Ivanova

Hyeon ah Park. Use of Exact Tests in Vaccine Challenge Studies. Advisor(s): Michael G.Hudgens

Virginia Wood Pate.Statistical Considerations in Evaluating the Impact of Weather on Physical Activity. Advisor(s): Diane J. Catellier

Yiyun Tang. Performance of Some Proof of Concept Decision Rules for Multiple Response Variables in a Multi-Dose Clinical Trial. Advisor(s): Gary G. Koch

Yufan Zhao. Dose Finding for Umbrella-shaped Dose-response. Advisor(s): Anastasia Ivanova

2006

Daniel Philip Beavers. Analyzing the Determinants of Pediatric Nutritional Perceptions Using Role-Play Data. Advisor(s): Lawrence L. Kupper

Michael DeSpirito. Cross-Over Study Analysis with Multiple Response Endpoints. Advisor(s): Chirayath Suchindran

Yimei Li. On the Efficiency of Resampling Methods Based on Pivotal Estimating Functions. Advisor(s) Donglin Zeng

Shenghua Mao. An Adaptive Treatment Assignment Design for Dose Selection with Application to Headache Trails. Advisor(s): Anastasia Ivanova

Jennifer E. Marcello. A Causal Inference Approach to Assessing Surrogates of Protection in HIV Vaccine Trials: Advisor(s): Michael Hudgens

Ju-Hyun Park. Numerical Evaluation of Methods for Failure Time Data with Auxiliary Outcome. Advisor(s): Haibo Zhou

Miguel Villarreal. Predicting Indoor Particulate Matter from Outdoor Particulate Matter and Other Measurements in the Inner-City Air Pollution Study. Advisor(s): Herman Mitchell

2005

Marcus Berzofsky. Imputation Bias Based on Different Formulations of Imputation Classes for the IPEDS Finance Survey.  Advisor(s): Shiying Wu

Yeonseung Chung. Zoom-in Design for Dose-finding in Oncology.
Advisor(s): Anastasia Ivanova

Meagan Clement. Analyzing Diffusion Tensor Imaging Data. Advisor(s): Keith Muller

Andrea Fuller. Comparing Dual-Energy X-Ray Absorptiometer Software Versions in Patients with Cerebral Palsy: Evaluating Bias Relative to a Gold Standard. Advisor(s): Larry L. Kupper

Joshua Grab. Variables Affecting Continuation in the Baby Love Domestic Violence Program Following Pregnancy. Advisor(s): Larry L. Kupper

Nora Graber. Adaptive Treatment Allocation with Continuous Covariates: A Comparison of Methods.  Advisor(s): Dennis Wallace

Bradley Hammill. A SAS/IML Software Program for GEE and Regression Diagnstics. Advisor(s): John S. Preisser

Jamie Perin. Analysis of Correlated Health Care Outcomes from the Mountain Accessibility Project Cluster Sample Survey in Rural North Carolina. Advisor(s): John S. Preisser

Amanda Ashleigh Pyles. Hosmer Lemeshow Goodness-of-Fit Statitic for Data from a Complex Survey Design. Advisor(s): Babubhai V. Shah

Guochen Song. Correcting for Measurement Error: A Case Study in Magnetic Resonance imaging (MRI).  Advisor(s): Diane Catellier

Erica Wilmoth. An Application of Resampling Methods to Multiple Endpoints for the Comparison of Two Treatments for a Schizophrenic Disorder. Advisor(s): Gary G. Koch

2004

Nathan Carter. A Comparison of Escalation Versus Up and Down Designs for Finding the Opitmal Dose. Advisor(s): Anastasia Ivanova

Brooke Heubner. Variability in Laboratory Reference Ranges: A Comparison of Published Versus Lab-Specific Sources.  Advisor(s): Ronald Helms

Cathy Jenkins. Investigating Growth Patterns of the Kinosternon Subrubrum Species of the Turtle.  Advisor(s): Gail Tudor

Hye-jin Jo. Evaluation of Power and Type I Error for Two Types of Decision Rules for Demonstrating Equivalence of Three Treatments. Advisor(s): Gary Koch

Amy Kennedy. Analysis of Non-Ignorable Missing Data. Advisor(s): Dennis Wallace

Xiaojuan Liao. Bayesian Time Varying Coefficient Models for Epidemiological Research. Advisor(s): Amy Herring

Susan McRitchie. Attitudes Concerning Genetic Testing for Colon Cancer Among African Americans. Advisor(s): Larry Kupper

Tania Robbins. Combining Microarrays with QTL Analysis. Advisor(s): Fei Zou

Benjamin Saville. A Statistical Method for Comparing Randomized Treatments for Favorable Response During the Last t Times of Assessment for Clinical Trials with Random Censoring of Follow-up Time.  Advisor(s): Gary Koch

Jingjing Wu. Continuity of Inimate Partner Violence Victimization Experiences From Adolescence to Young Adulthood. Advisor(s): Lawrence L. Kupper

2003

Jamie Bigelow. An Evaluation of Missing Data Methods in a Large-Scale Epidemiological Study. Advisor(s): Amy H. Herring

Walter Boyle. Sample Allocation Optimization for a Two-Stratum Model for Oversampling in Two-Stage Sampling. Advisor(s): William Kalsbeek

Yu-Ling Chang. Relationships Between the Rate Difference and the Odds Ratio as Criteria to Evaluate Non-Inferiority of Treatments with High Success Rates. Advisor(s): Gary G. Koch

Rebekkah Dann. Review and Evaluation of Methods for Computing Confidence Intervals for the Ratio of Two Proportions and Implications to Non-Inferiority Clinical Trails. Advisor(s): Gary G. Koch

Kannan Mahadevan. Statistical Inference on Capture Mark-Release-Recapture Models. Advisor(s): Pranab K. Sen

Neepa Ray. Physical and Sexual Assault Among Women with Disabilities.
Advisor(s): Lawrence L. Kupper

Ben Sanford. Assessing Differential Expression in cDNA Microarray Data Using Modified t-Tests. Advisor(s): Fred Wright

Ann Vonholle. Data Depth and Infant Mortality Differentials. Advisor(s): Chirayath M. Suchindran

Binbin Zhang. The Two-Sample Location Problem WIth Small Samples: A Power Comparison of Parametric and Non-Parametric Tests. Advisor(s): Michael J. Schell

Xiaolei Zhou. Alternative Regression Models for Correlated Binary Responses: Logistic Regression, Generalized Estimating Equations, and Generalized Linear Mixed Model. Advisor(s): Shrikant I. Bangdiwala

2002

Nikita Arya. QTL Analysis of Body Weight Gain in Recombinant Inbred Intercross Mice.  Advisor(s): Fei Zou

Robert Barrier. Adjusting for Selection Bias in Randomized Clinical Trails.
Advisor(s): Anastasia Ivanova

Daniel Garcia. Alternative Computational Formulae for Generalized Linear Model Diagnostics: Identifying Influential Observations with SAS Software.
Advisor(s): John Preisser

Michael A. Getter. Assessing the Probability That a Measurement May Progress Beyond an Arbitrary Study Cutoff Point Given it is Below the Cutoff Point at Baseline, Correcting for Measurement Error.  Advisor(s): Lloyd Chambless

Jennifer Haskins. A Structural Equation Modeling Appliction: Intimate Partner Violence and Substance Abuse. Advisor(s): Lawrence L. Kupper

Ruby Johnson. An Evaluation of Estimation Strategies for the Intraclass Correlation Coefficient. Advisor(s): Jun Liu

Tomomi Kaneko. Guttman Scale: An Application to a Longitudinal Study of Psychological and Physical Violence Among Youth.  Advisor(s): Chirayath M. Suchindran

Hae-Young Kim. New Analytic and Computional Forms for Ratios of Quadratic Forms. Advisor(s): Keith Muller

Hongjian Li. General Linear Mixed Model for Correlated Failure Time Data.
Advisor(s): Jianwen Cai

Lauren Lindblad. Analysis of Longitudinal Cyclical Data in a Crossover Study. Advisor(s): Paul W. Stewart

Bing Lu. Longitudinal Analysis of the Association Between Overweight and Food Consumption with Missing Data.  Advisor(s): Chirayath M. Suchindran

Liyun Ni. Assessment of Blinding In Drug Clinical Trails. Advisor(s): Heejung Bang

Shane Rosanbalm. An Interim Monitoring Approach For a Small Sample Incidence Density Problem.  Advisor(s): Dennis Wallace

Daniela Sotres. Are Disabled Women at Increased Risk of Physical Assault?: Results From the North Carolina BRFSS. Advisor(s): Lawrence L. Kupper

2001

Monique A. Amamoo. Confidence Intervals for Proportions from Correlated Binary Data with Small Sample Size. Advisor(s): Bahjat F. Qaqish

Angelita Bush. Evaluating Alternative Methods of Assigning Logrank and Scores to Censored Observations.  Advisor(s): Gary G. Koch

Cralen Davis. Applying Nonparametric Linkage Regression and Regression Diagnostics to Genetic Data.  Advisor(s): Carl Langfeld and Lawrence L. Kupper

Julian J. Garro. Application of Polytomous Logistic Regression to Assess the Intergenerational Transmission of Violence Hypothesis Among Men in Northern India.  Advisor(s): Lawrence L. Kupper

Jennifer E. Hamer. A Comparison of Analysis Methods Using Compliance Data. Advisor(s): Clarence E. Davis

Emily O. Kistner. Exact Distributions of Intraclass Correlation and Cronbach’s Alpha With Gaussian Data and General Covariance.  Advisor(s): Keith Muller

Yun Li. Modeling Correlated Count Data With an Application to Domestic Violence. Advisor(s): Lawrence L. Kupper

Linda S. Mackie. The Effects of Physical Abuse on Women Before, During, and After Pregnancy. Advisor(s): Lawrence L. Kupper

Cicely E. Mitchell. Is Degree of Rurality Associated with Health Service Use?. Advisor(s): John Preisser

Daniel R. Scharf. Matrix Order Reduced Isotonic and Reduced Monotonic Regression. Advisor(s): Michael Schell

Seehyang Sohn. How Well Does a Single Testosterone Sample Represent Testosterone Exposure Over the Course of a Full Menstrual Cycle?.
Advisor(s)Lawrence L. Kupper

Benjamin J. Vaughn. An Empirical Comparison of Weighting Class Adjustment and Propensity Modeling Adjustment for Nonresponse.  Advisor(s): Gary Koch

Karen Wade. Inferential And Graphical Assessment Of Variability Of Dropout Rates In Longitudinal Clinical Trails. Advisor(s): Ronald Helms

Yaoshi Wu. Trends in HIV Viral-Load Measurements.  Advisor(s): Franciose Seillier-Moiseiwitsch

Yawei Zhang. Comparison of Poisson Regression and Proportional Hazards Models.
Advisor(s): Jianwen Cai

Bin Zou. A Nonparametric Strategy For Comparing Two Interventions To A Control In A Three Period Crossover Study With Control Entirely In The First Period And The Third Sequence.  Advisor(s): Gary Koch

2000

Gautam Aggarwal. A Proposal for a Statistic to Measure a Logistic Model's Prediction Ability and a Comparison with Traditional Goodness of Fit Statistics. Advisor(s): Lloyd Chambless

Thad Benefield. Modeling Behavior Change in Response to the Threat of AIDS in Tanzania-A Gee Approach. Advisor(s): Chirayath M. Suchindran

Yan Fang. Does Excluding the First Few Years of Death Eliminate the U-Shaped Relationship Between BMI and Mortality?-A Simulation Study. Advisor(s): Jianwen Cai

Jeffrey Griffin. Application of Wavelets to Two Dimensional Polyacrylamide Gel Electrophoresis Images. Advisor(s): Francoise Seillier-Moiseiwitsch

Xiangqiiong Gu. Linear Mixed Model Analysis of a Grouped Randomized Trial of Migrant Farmworkers to Increase Protective Behaviors Against Pesticide Use in Tobacco Fields.  Advisor(s): John S. Preisser

Rakhi Kilaru. Application of the EM Algorithm to Left Censored Bivariate Normal Data. Advisor(s): Paul Stewart

Lan Kong. Performance of Some Multiple Testing Procedures to Compare Three Doses of a Test Drug and Placebo. Advisor(s) Gary G. Koch

Ji-Hyun Lee. ARIC Intra-Individual Variability Study of Retinal Photography Measurements. Advisor(s): D. Couper

Hong Liu. A Non-Parametric Test for Clustered Failure Time Data.  Advisor(s): Jianwen Cai

Geetha Murali. Applications of Statistical Methods to Evaluate Superiority to Placebo and Non-Inferiority to Active Control by a Test Treatment in a Multi-Visit Clinical Trial for Depression.  Advisor(s): GaryG. Koch

Mary Otterness. Evaluation of Performances of Alternative Decision Rules for Determining Whether a Treatment in a Multi-Stage Design Achieves a Necessary Response Rate for a Dichotomous Outcome.  Advisor(s): D. Catellier & Gary G. Koch

Yue Shen. An Evaluation of the Relationship of the Significance Level of the Test to Compare Two proportions to Increasing Event Rates Over Time With Preserved Power and Effect Size.  Advisor(s): Gary G. Koch

Joanna Wang. An Evaluation of Unit Nonresponse Bias for Wave II Core Sample in the National Longitudinal Study of Adolescent Health. Advisor(s): William Kalsbeek

Lily Wang. Secondary Sexual Characteristics in Boys: Estimates from the National Health and Nutrition Examination Survey III, 1988 - 1994.
Advisor(s): Gary G. Koch

Xiaoping Yang. Comparison of Different Methods for Generating Correlated Binary Variates.  Advisor(s): Bahjat B. Qaqish

Guosheng Yin. Repeated Measures Data Analysis of Managing Uncertainty in Cancer. Advisor(s): John S. Preisser

 Chufeng Zhang. A Pilot Study: Assessment of the Efficacy of Self-Monitoring Blood Glucose in Patients with Type II Diabetes Mellitus.  Advisor(s): Lawrecne L. Kupper

1999

Anirban Basu. Assessing the Time Path of Homocysteine in Patients After Stroke. Advisor(s): Lloyd Chambless

Sutapa Das. Highs, Lows and Holiday Fun: The Effect of Weather Conditions and Holiday Stress on Heart Attack Severity. Advisor(s): Gary G. Koch

Signe Hiser. Factors Correlated With Lumbar Spine Bone Mineral Density in Children With Cerebral Palsy and Moderate to Severe Levels of Impairment.
Advisor(s): C.E. Davis

Burton Levine. Determining the Optimal Sampling Strategies to Estimate Risk of Infection for Low Doses of Norwalk Virus Using Computer Simulation. Advisor(s): Paul Stewart

Brain Neelon. A Bootstrap Variance Estimator for Marginal Failure Time Models. Advisor(s): Jianwen Cai

Dawn Odom. Further Analysis of Telephone Call History Data From the Behavioral Risk Factor Surveillance System.  Advisor(s): A.D. Karr

William Pan. Methods of National Population Forecasting: Contrast and Comparison. Advisor(s): Chirayath Suchindran

Michelle Pritchard. Small Sample Comparisons of Three Variance Estimators for the Kaplan-Meier Estimator with Correlated Survival Data.  Advisor(s): R. Helms

Xiang Qin. Rate Ratio Estimation Using Parametric Proportional Hazards Model In case-Cohort Design.  Advisor(s): Jianwen Cai

Brian Sutton. As Evaluation of Measurement Error in Year 2 of the North Carolina High School Athletic Injury Study. Advisor(s): A.D. Karr

Jerry Tsai. Utilities for Health States: Assessing the Reproducibility of the Standard Gamble by the Time Trade-Off and Determining a Distribution of Risk Attitude. Advisor(s): Lawrence Kupper

Daniel Wojdyla. Testing Normality of Errors in Regression Models.  Advisor(s): D. Quade

Richard Zink. Can Amino-Acid Sequences of HIV-1 Isolates Predict Neutralization?.
Advisor(s): Francoise Seillier-Moiseiwitsch

1998

Wendy Ahmed. An Analysis of Telephone Call History Data from the Behavioral Risk Factor Surveillance System. Advisor(s): William Kalsbeek

Hrishikesh Chakraborty. A Novel Analytic Approach to Evaluation the Association Between Blood and Semen HIV-1 RNA Concentrations Among Malawi Men. Advisor(s): R. Helms

Ali Faiz. Methods for the Statistical Analysis of Change in FEV1 for Patients with Cystic Fibrosis Lung Disease. Advisor(s): Lawrence Edwards

Kathryn Grover. Graphical Presentation of Correlation Structure from Multivariate Longitudinal Data.  Advisor(s): R. Helms

Brian Kilgallen. Violence During Pregnancy: Findings from Northern India.
Advisor(s): Lawrence Kupper

Justin Lashley. Two Parameter Percentile Coverage Properties of a Simulated Five Parameter Generalized F. Advisor(s): L. Myers & M.Symons

Hongxia Li. Findings from Alternative Statistical Methods for the Analysis of the Combined Data from Two Bioenvironmental Crossover Studies.
Advisor(s): Francoise Seillier-Moiseiwitsch

Jane Monaco. An Evaluation of the Safe Dates Program at the One-Year Follow-Up. Advisor(s): Lawrence Kupper

Sean O'Brien. The Impact of Categorizing Continuous Explanatory Variables in the Power of Tests in Linear Regression.  Advisor(s) M. Schell

Todd Schwartz. Interim Analyses in Randomized Clinical Trials. Advisor(s): Gary G. Koch

Xiaofei Wang. Review of Alternative Missing Data Methods and Assessments of Their Performance for a Cardiovascular Laboratory Study with Repeated Measures and Dropouts. Advisor(s): Gary fG. Koch

1997

Jennifer Bourbina. Dose Escalation Schemes in First Time in Man Studies and Their Relationship to the MTD: A Simulation Study.  Advisor(s): Gary G. Koch

Katherine Bowman. Quality Control Monitoring of Interviewers Using Shewhart Control Charts. Advisor(s): William Kalsbeek

Brian Calingaert. Application of the O'Brien Nonparametric Technique for Testing Improvement in Multiple Coronary Heart Disease Risk Factors.  Advisor(s): Gary G. Koch

Marla DeLuca. A Bayesian Approach to Testing for Linked Genomic Mutations.
Advisor(s): Francoise Seillier-Moiseiwitsch

Shibing Deng. Computation and Studies on Maximally Selected Chi-Square Statistics. Advisor(s): M.Schell

Tejas Desai. A Comparison of Repeated-Measures Logistic Regressions on Complete, Incomplete, Adhocly Impuated, and Multiply Imputed Data.
Advisor(s): Michael J. Symons

Michelle Harb. Modeling Issues in a Norwalk Virus Dose-Response Study.
Advisor(s): Paul Stewart

Russell Helms. Electronic Survey of Internet Use. Advisor(s): Gary G. Koch

Pamela LaDuke. Power Estimates for Longitudinal Pulmonary Function in Cystic Fibrosis Research.  Advisor(s): Lawrence Edwards

Hsi-Wen Liao. A Simulation Study of Estimatiors in Stratified Proportional Hazards Models.  Advisor(s): C.E. Davis

Stacey Major. Power Analysis for Correlated Lognormal Data in Repeated Measures Anova.  Advisor(s): K. Muller

Joseph Mauney. Contamination Effect in a Community Intervention Study: The Black Churches United For Better Health Five-A-Day Nutrition Follow-Up Survey. Advisor(s): William Kalsbeek

Denai Milton. A Comparison of Techniques Used for Handling Incomplete Data. Advisor(s): D. Quade

Zhiying Pan. Sample Size Calculations for Fixed-Effects One-Way Anova Treating Confidence Interval Width as Random. Advisor(s): Lawrence  Kupper

Randy Rieger. Pregnancy Outcomes Among North Carolina Women Who Experienced One Pregnancy While Incarcerated and Another Pregnancy While not Incarcerated. Advisor(s): Lawrence Kupper

David Schlappy. An Observational Study Examining the Effects of Fetal Complications on Mortality of Infants Admitted to a Newborn Intensive Care Unit. Advisor(s): Young Truong

Stephanie Silva. Comparison of Ischemic Pain Intensity Ratings on TMD and Control populations: A Mixed Model Analysis of Longitudinal Data.
Advisor(s): M. Schell

Xiaojun Wang. Mortality Among North Carolina Construction Workers: 1988-1994.
Advisor(s): Jianwen Cai

Hongyan Zhang. Comparison of Statistical Methods for Analyzing Stratified Case-Cohort Data with Binary Response Through Simulation Studies.
Advisor(s): Jianwen Cai

MPH

2008 

Carissa Baker-Smith. Adverse Event Reporting Among Obese Hypertenisve Adolescents. Advisor(s): Chirayath Suchindran

2007

Cynthia Bland Augustine. Exploring Differences in Estimates Between a Random Digit Dial Survey and Web Panels: The Ohio Adult Tobacco Survey. Advisor(s): Chirayath Suchindran

Henry Bahnson. Proximity to Emergency Department (ED) as a Predictor of Frequent ED Use among Asthmatic Children in the Inner City Methods to Deal with Confounding. Advisor(s) Herman Mitchell

Sonali Garg. Intimate Partner Violence and Use of Services by Pregnant Women. Advisor(s): Lawrence L. Kupper

Xuguang Guo. Healthy Eating Index and Metabolic Syndrome. Advisor(s): Chirayath M. Suchindran

Douglas R. McQuoid. Stress, 5-HTTLPR and the BDNF Polymorphisms as Predictors of Depression Remission among Adults Age 59 and Over.
Advisor(s): C.hirayath Suchindran

Karthi K. Natarajan. Exposure to Wood Dust and the Risk of Carcinoma of the Lung: A Case-Control Study from the Patient Epidemiology Data System of Roswell Park Cancer Institute. Advisor(s) Mary E. Reid

2006

Leela Marie Aertker. Assessing Nonresponse Bias Using Estimated Response Propensities. Advisor(s): William Kalsbeek

Brian Armstrong. Analysis of a Clustered Longitudinal Study of Arthritis Interventions. Advisor(s): Todd Schwartz

April Deloris Coan. Exploring CTEPP Questionnaire Data to Improve Approaches in Estimating Children's Exposure to Pollutants. Advisor(s) Amy Herring

Xuguang Guo. Healthy Eating Index and Metabolic Syndrome. Advisor(s) Chirayath Suchindran

Margaret JoAnne Hall Evaluation of Alternative Roles, Models, and Methods for the Crossover Design with Four-Sequences for Two-Treatments in Two-Periods. Advisor(s): Gary Koch

Dong-Ming Lin. Modelling Correlated Ordinal Data With Partial and Full Proportional Odds With an Application to the Sensory Re-Training Project.
Advisor(s): John Preisser

Tomoharu Matsukura. Study Design and Sample Size to Compare Two Combination Drugs to their Components and Placebo. Advisor(s) Gary G. Koch

Jeremy Wildfire. Relationship Between Allergen Exposure and Skin-Test Sensitivitgy ub tge Ubber-City Asthma Study. Advisor(s): Herman Mitchell

2005

Donna Barton. Early Neglect Predicts Childhood Aggression. Advisor(s): Shrikant Bangdiwala

Jennifer Thompson. A Meta-Analytic Comparison of ACR 20 and ACR 50 as Criteria for Treatment Comparisons in Rheumatoid Arthritis Studies.
Advisor(s): Gary G. Koch

2004

Allison Burns. Estimating Degrees of Freedom for Data from Complex Surveys. Advisor(s): Jun Liu

William Cade. Evaluation of a Survey of Prehospital Providers for the Patterns of Variation Among 10 Hypothetical Case Scenarios for 5 Types of Reporting of Medical Errors.  Advisor(s): Gary Koch

Hyunsook Chin. Competing Risks for Activie Versus Chronic Outcomes and Multiple Disease Relapses in Small Vessel Vasculitis Study.
Advisor(s): Jianwen Cai

Harper Gordek. Generalized Variance Functions for Estimated Proportions from Complex Surveys. Advisor(s): Avinash Singh

Thomas Lehman. Type 1 Error Rate and Power Considerations for a Schizophrenia Study. Advisor(s): Gary G. Koch

Mukesh Patel. Predictors of the MacCAT-CR in the CATIE Schizophrenia Trial. Advisor(s): Sonia M. Davis

2003

Natalie Cheung. A Meta Analysis of Factors Associated with Condon Failure Using Generalized Estimating Equation and Randon Effects Models. Advisor(s): Douglas J. Taylor

MaryJo Earp. Examination of Statistical Methods Used in Climate Modeling.
Advisor(s): Michael Symons

Kelly Forsythe. Multi-Level Clustering: A Look at a Longitudinal, Familial Study. Advisor(s): Amy Herring

Kelly Hugunin. Assessment and Comparison of Efficacy Measures in an Osteoarthritis Clinical Trail. Advisor(s): Gary G. Koch

Tzy-Mey Kuo. Contraceptive Switching for Women in the United States: Application of Multistate Life Table Methods.  Advisor(s): Chirayath M. Suchindran

Stacy A. Patchel. Some Statistical Strategies for Comparing the Distributions of Quality of Life Observational Categories in Two Types of Long-Term Care Facilities. Advisor(s): Gary G. Koch

Susheel Reddy. Accommodating an Outcome Variable With a Training Effect in the Analysis of Neuropsychological Development of HIV Positive Adolescent Hemophiliacs.  Advisor(s): Paul Stewart

Vanessa Rommelmann. Determinants of Sexual Partnership Acquisition Among Individuals at Sites Identified as High Risk Areas for HIV Transmission in a South African Township.  Advisor(s): Chirayath M. Suchindran

Maria Runaldue. A Comparison of Two Nicotine Exposure Measurement Techniques Using A Receiver Operating Characteristic (ROC) Analysis.
Advisor(s): Herman Mitchell

Beth Skalicky. A Look At Matched Pairs Data With Repeated Measures and Small Sample Size. Advisor(s): Gail E. Tudor

Annie Spencer. Analysis of Symptom Counts Over Time: The Inner-City Asthma Study. Advisor(s): Amy Herring

2002

Jungeun Ahn. Evaluation of Inter-Observer Agreement With Adjusted Kappa Statistics in a Study With a Third Reviewer to Classify Patients With Disagreements for an Assigned Pair of Reviewers. Advisor(s): Gary Koch

Kevin Clark. Comparing Per Hypothesis and Per Trial Error Rates Using Group Sequential Methods in Multi-Armed Clinical Trails. Advisor(s): Karen Kesler and Ronald Helms

Adam Gilbert. Using Mixed Models to Assess and Compare the Rates of Bone Maturity Among Healthy Children and Children With Severe Cerebral Palsy.
Advisor(s): Diane Catellier

Lisa A.V. Moorehead. Statistical Methods for Predicting Power Output and Maximal Oxygen Consumption (VO2MAX) in Adolescent Girls. Advisor(s): Diane Catellier

Mike Pennell. Evaluating the Impact of ACASI Procedures for Reconciling Inconsistent and Questionable Data in the 1999 NHSDA.  Advisor(s): J.T. Lessler

Ping Shen. Comparing Three Regression Models in the Prediction of Obesity From Its Risk Factors Among African Americans in North Carolina.
Advisor(s): Mike J. Symons

Heidi Toms. Comparison of the Proportional Odds Model and The Generalized Logits Model for a Multinomial Response Outcome. Advisor(s): Chirayath Suchindran

Lisa Wrage. Using the NHIS and the National Death Index to Calculate Alcohol Attributable Mortality. Advisor(s): Babubhai V. Shab

2001

Martha L. Carlson. Spatial Analysis of Boston’s Rodent Control Program From 1992 Through 1996. Advisor(s): Lawrence L. Kupper

Luther J. Davis, III. Is There a “Characteristic” Bias in the Treatment of Group 1 Presenting With Disease: A Retrospective Look at Data Collected in a Pharmaceutical Company-Sponsored Treatment Strategy Protocol.
Advisor(s): Jeaneene J. Nelson

Fang Gai. The Application of Stein’s Estimator by Using SAS.
Advisor(s): Michael Schell

Shishir Gupta. The Estimation of the Box-Cox Transformation Parameter with Increasing Sample Size. Advisor(s): Mike Symons

Carie T. Kimbrough. Parametric Analysis of Micronucleus Data.
Advisor(s): Diane Catellier

Alice E. Lail. Comparing Statistical Models for Predicting Wheeze in Children with Asthma. Advisor(s): Shrikant Bangdiwala

Cynthia V. McShea. Active Control Studies: Methods for Evaluating A Hypothetical Comparison of Test Treatment To Placebo From A Clinical Trial For Test Treatment Versus Active Control. Advisor(s): Gary G. Koch

Janet E.M. Misenheimer. Analysis of Doubly Correlated Data with a Continuous Outcome: An Application of Mixed Models with SAS. Advisor(s): Shrikant Bangdiwala

Carolyn B. Morris. A Further Evaluation of Total and Component Unit Nonresponse Bias in the National Longitudinal Study of Adolescent Health.
Advisor(s):William Kalsbeek

James H. Schaefer, Jr.. Accounting for the Sample Design in the Veterans Healthcare Administration Ambulatory Care Survey. Advisor(s): William Kalsbeek

Sarah L. Taraska. A Proposal of Sample Design and Selection Strategy for Use in Planning the North Carolina Longitudinal Survey.  Advisor(s): William Kalsbeek

Sandra L. Woolson. A Complementary Application of Nonparametric Covariance Methods For Logrank Scores and Proportional Hazards Models to the Integrated Analysis of Survival Data from Two Clinical Trails in Non-Small-Cel. Advisor(s): Gary Koch

2000

Kennan Beckett. A Third Phase Analysis of Call History Data From the Behavioral Risk Factor Surveillance Survey. Advisor(s): William Kalsbeek

M. Stirling Cummings. Predicting Psychosocial Disorders in Sudanese Refugees Using Classification Trees.  Advisor(s): Chirayath M. Suchindran

Kryn Krautheim. Mortality Decomposition By Cause of Death in North Carolina, 1988 - 1998. Advisor(s): Chirayath M. Suchindran

Trang Lance. Early Analytic Evaluation of Practice and Radiologist Variation on the Density Assessment of Screening Mammograms.  Advisor(s): M. Schell

Michael Penne. Evaluating the Impact of ACASI Procedures for Reconciling Inconsistent and Questionable Data in the 1999 NHSDA.  Advisor(s): J.T. Lesslor

Cheryl Pinto. Evaluation of the Sensitivity of the Results from a Two Period Crossover Study in Osteoarthritis to Alternative Ways of Managing Missing Data. Advisor: Gary G. Koch & C. Turnbull

Jennifer Staab. Examining Drug Use in the Drug Abuse Treatment Outcome Study of Adolescents (DATOS-A).  Advisor(s): D. Catellier

John Wood. The Role of Phase I Clinical Trials in Drug Development with an Emphasis on Safety and Pharmacokinetic Analysis.  Advisor(s): Michael J. Symons

Shen Zhuang. Statistical Methods for Analysis of Quantitative Coronary Angiographic Trials.  Advisor(s): D. Catellier

1999

Seleshi Demissie. The Analysis of Nutritional Intervention Studies.  Advisor(s): Chirayath M. Suchindran

James Szymeczek. Issues in the Development and Analysis of a Short Term Placebo Controlled Asthma Clinical Trial.  Advisor(s): Gary G. Koch

1998

Douglas Criger. A Review of the Conditional Bionomial Distributions as Applied to the Comparison of Poisson Variates.  Advisor(s): Michael J. Symons

Maria Ilieva. A Simulation Model for Sample Size and Power Calculations for Comparing Test Treatment, Reference Control and Placebo.  Advisor(s): Gary G. Koch

Deanne Ferracane Mustian. An Evaluation of Analgesic Efficacy in a Phase III Clinical Trial in Patients with Postoperative Pain Following Oral Surgery.
Advisor(s): D. Quade

Antonio I. Sanhueza. Handling of Baseline Measurements of a Continuous Outcome in Clinical Trials.

1997

John Crouch. Prediction of Orthopaedic Surgery Residence Performance from Application Data.  Advisor(s): Michael J. Symons

Deborah Williams Hamby. A Comparison of Statistical Methods for Analyzing Change in Longitudinal Early Intervention Studies.  Advisor(s): Paul Stewart

Amit Kumar. Factors Influencing Emotional Distress Experienced by Burn Patients in an Acute Care Setting. Advisor(s): Michael J. Symons

Marianne Nennstiel. The Role of Expectation and Experience of Side Effects in Discontinuation Among Users of Norplant, Depo-Provera, and Oral contraceptives. Advisor(s): Chirayath M. Suchindran

Kim Boomer Ring. Using a Mixed Model to Predict Baseline Characteristics of Individuals in a Randomized Intervention Trial. Advisor(s): C.E. Davis

Wesley Rountree. Evaluation of an Educational Program for Public Health Nurses in Skin Cancer Prevention.  Advisor(s): Chirayath M. Suchindran

Valerie G. Smith. Survey of Statistical Methods Used in Minority Health Research.
Advisor(s) : Lawrence Edwards