The Methodology Center | Advancing methods, improving health

Year of TVEM

Linda Collins

Year of TVEMA letter from Linda Collins introducing our latest dissemination initiative


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Aaron Wagner and Donna Coffman recording podcastMay 5, 2015

In this podcast, we talk with Methodology Center Investigator Donna Coffman about the K01 award she received from the National Institutes of Health (NIH) Big Data to Knowledge (BD2K) initiative. Topics include the emergence of big data in NIH-funded research and the practical aspects of applying for a K award. Donna also explains her research on analyzing biosensor data from a parenting study and how her move into big data integrates with her research on causal inference.


woman breaking cigaretteApril 29, 2015

Year of TVEM

In 2014, a special issue of Nicotine and Tobacco Research featured applications of the time-varying effect model (TVEM) and other methods for the analysis of intensive longitudinal data (ILD). In that issue, four NIH officials—Elizabeth Ginexi, William Riley, and Audie Atienza of the National Cancer Institute (NCI), and Patricia Mabry of the Office of Behavioral and Social Sciences Research (OBSSR)—authored an editorial, “The promise of intensive longitudinal data capture for behavioral health research.” In this piece, the authors discussed the potential of ILD to advance science and highlighted resources at NIH for supporting research related to the collection and analysis of ILD.


Sara Vasilenko, Lisa Dierker, Rebecca Evans-PolceApril 27, 2015

Society for Prevention Research

Washington DC, May 27-29, 2015


Year of TVEM

Methodology Center researchers will be very active at SPR with posters, symposia, presentations, a workshop, a special interest group, a technical demonstration of our software, and the SPR Cup competition. Below are just a few opportunities to discuss our research with us, including the poster session, “A novel technique for addressing crucial questions in the prevention of health-risk behavior,” which is the inaugural event in our Year of TVEM. We hope to see you at the conference!


Register for the conference. 


April 13, 2015

LCA Stata PluginThe Methodology Center is pleased to release the latest version (1.2) of the LCA Stata plugin for conducting latent class analysis (LCA). We improved the plugin based on user feedback. Specifically, we altered the plugin to prevent lower versions of Stata from generating errors based on the matrix size used in the analysis. As always, the software is available for download free of charge, though you need Stata to run it. For an overview of the functionality of the LCA Stata plugin, please visit the download page. The users’ guide has also been updated. Please email with any questions or feedback.

Read more or download the software.

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