Science Writer, The Methodology Center
The Methodology Center
The Pennsylvania State University
400 Calder Square II
State College, PA 16801
814-863-9795
Publications
Yang, J., Tan, X., Li, R., & Wagner, A. (2012). TVEM (time-varying effect model) SAS macro suite users' guide (Version 2.0.0). University Park: The Methodology Center, Penn State. Retrieved from http://methodology.psu.edu
Tan, X., Lanza, S. T., & Wagner, A. T. (2011). Lca distal SAS macro user’s guide (Version 1.1.0). University Park: The Methodology Center, Penn State. Retrieved from http://methodology.psu.edu