My research is in the area of applied statistics for the social and behavioural sciences.
- My main research interests involve the investigation and improvement of methods for comparing predictors in general linear models.
- Specifically, I work on extending the application of the Dominance Analysis method to various models. The Dominance Analysis method was discussed on this Quantitude podcast
Programs available for downloading:
Predictor Criticality
- Download page: SAS Macro for criticality computations.
- Reference:
- Azen, R., Budescu, D. V. and Reiser, B. (2001). Criticality of predictors in multiple regression. British Journal of Mathematical and Statistical Psychology, 54, pp 201-225.
Dominance Analysis
- Download page: SAS Macros for dominance analysis.
- References:
- Azen, R., and Budescu D. V. (2003). The dominance analysis approach for comparing predictors in multiple regression. Psychological Methods, 8, 129-148.
- Azen, R. and Budescu, D. V. (2006). Comparing predictors in multivariate regression models: an extension of Dominance Analysis. Journal of Educational and Behavioral Statistics, 31, pp 157-180.
- Azen, R., & Traxel, N. M. (2009). Using Dominance Analysis to determine predictor importance in logistic regression. Journal of Educational and Behavioral Statistics, 34, pp 319-347.
Inference for R2 differences
- Download page: SAS program for R-squared differences.
- Reference:
- Azen, R., & Sass, D. A. (2008). Comparing the squared multiple correlation coefficients of non-nested models: An examination of confidence intervals and hypothesis testing. British Journal of Mathematical and Statistical Psychology, 61, pp 163-178.
Categorical Data Analysis book
- Download page: data sets used in the Categorical Data Analysis book.
- First Edition Reference:
Azen, R., & Walker, C. M. (2010). Categorical Data Analysis for the Behavioral and Social Sciences. New York: Routledge (Taylor & Francis).
- Second Edition Reference:
Azen, R., & Walker, C. M. (2021). Categorical Data Analysis for the Behavioral and Social Sciences, 2nd Ed. New York: Routledge (Taylor & Francis).