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Department of Public Health Sciences
The University of Chicago
Donald Hedeker, PhD
Donald Hedeker, PhD
Mixed-effects models for clustered and longitudinal data analysis, especially ordinal outcomes
Missing data in longitudinal studies
Models for intensive longitudinal data, particularly data from Ecological Momentary Assessment (EMA) and mHealth studies
Software development and computational statistics
Tobacco and addictions research
Ph.D. (Quantitative Psychology), 1989, University of Chicago
B.A. (Economics), 1980, University of Chicago
, Mermelstein, R.J., and Demirtas, H. (2012). Modeling between- and within-subject variance in Ecological Momentary Assessment (EMA) data using mixed-effects location scale models. Statistics in Medicine, 31, 3328-3336.
, Mermelstein, R.J., Berbaum, M.L., and Campbell, R.T. (2009). Modeling mood variation associated with smoking: An application of a heterogeneous mixed-effects model for analysis of ecological momentary assessment (EMA) data. Addiction, 104, 297-307.
, Mermelstein RJ, Demirtas H. An application of a mixed-effects location scale model for analysis of ecological momentary assessment (EMA) data. Biometrics. 2008;64(2):627-634.
, Mermelstein RJ, Demirtas H. Analysis of binary outcomes with missing data: missing = smoking, last observation carried forward, and a little multiple imputation. Addiction. 2007 Oct;102(10):1564-73.
(2003). A mixed-effects multinomial logistic regression model. Statistics in Medicine, 22, 1433-1446.
, Siddiqui, O., & Hu, F. B. (2000). Random-effects regression analysis of correlated grouped-time survival data. Statistical Methods in Medical Research, 9, 161-179.
& Mermelstein, R. J. (1998). A multilevel thresholds of change model for analysis of stages of change data. Multivariate Behavioral Research, 33, 427-455.
& Gibbons, R. D. (1997). Application of random-effects pattern-mixture models for missing data in longitudinal studies. Psychological Methods, 2, 64-78.
& Gibbons, R. D. (1994). A random-effects ordinal regression model for multilevel analysis. Biometrics, 50, 933-944.
and Nordgren, R. (2013). MIXREGLS: A program for mixed-effects location scale analysis. Journal of Statistical Software, 52(12), 1-38.
(1999). MIXNO: A computer program for mixed-effects nominal logistic regression. Journal of Statistical Software, 4(5):1-92.
& Gibbons, R. D. (1996). MIXREG: A computer program for mixed-effects regression analysis with autocorrelated errors. Computer Methods and Programs in Biomedicine, 49, 229-252.
& Gibbons, R. D. (1996). MIXOR: A computer program for mixed-effects ordinal probit and logistic regression analysis. Computer Methods and Programs in Biomedicine, 49, 157-176.
& Gibbons R.D. Longitudinal Data Analysis. New York, John Wiley & Sons, 2006.
Faculty Director, Biostatistics Laboratory
Fellow, American Statistical Association
Don Hedeker's Statistical Methods Website