Issue: December 2014
eNews from The Methodology Center

Rebecca Evans-Polce

In the United States, rates of substance use peak during adolescence and young adulthood. Previous literature has demonstrated that rates differ by race, ethnicity, and gender. Despite knowledge of these disparities, until now researchers have been unable to understand the extent to which these disparities change across adolescence and young adulthood. 


In the article, "Changes in gender and racial/ethnic disparities in rates of cigarette use, regular heavy episodic drinking, and marijuana use: Ages 14 to 32," in Addictive Behaviors, Methodology Center researchers Rebecca Evans-Polce, Sara Vasilenko, and Stephanie Lanza use the time-varying effect model to examine the dynamic nature of substance use rates among groups of adolescents and young adults.


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Runze Li Congratulations to Methodology Center Principal Investigator Runze Li for being named a Highly Cited Researcher by Thomson Reuters. This means he is in the top one percent of most cited mathematical researchers. Runze's research focuses on the analysis of intensive longitudinal data (ILD) and high-dimensional dataRunze's work is becoming even more relevant with the increasing availability of high-dimensional data, which include genetic data and ILD, such as data from smartphone studies. We look forward to many more years of collaborating with Runze.

icon for download page Have you visited our software page recently? We offer software that works with SAS, R, Stata and more. If you design adaptive interventions, analyze intensive longitudinal data, conduct factorial experiments, perform latent class analysis, analyze high-dimensional data sets, or examine time-varying causal effect moderation, then we offer tools that might be useful to you. Consider it a gift from us. Happy holidays!

The Methodology Center's 2014-15 annual report is now available online. The report is the quickest way to get a brief overview of our research.  


AIDS ribbon Over the past four years, we have initiated collaborations with some of the top experts in HIV-Prevention research. Our annual report lists a few highlights of our first steps in this field.

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Recognition of Scientists

All five Methodology Center principal investigators have been recognized for their achievements and contributions to their fields of research. Our annual report lists some of the highlights.


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