Article: Parental Monitoring and Adolescent Weight

John Felt

September 16, 2019: Different researchers bring a diverse set of research backgrounds and interests to The Methodology Center. Prevention and Methodology Training (PAMT) Postdoctoral Fellow John Felt has applied his expertise in methods to a broad array of social and health problems. Recently, he worked with a team of researchers … Continue reading

R Interest Group for Penn State

August 30, 2019: This fall, Methodology Center Investigator and Programmer John Dziak will be hosting a special interest group for researchers who are interested in R software for statistical computing. The group is open to all, but it is geared toward teaching the basics of R to interested faculty and … Continue reading

Podcast: Getting Started in Grant Writing With Lisa Dierker

Lisa Dierker

August 28,2019: In the current research landscape, researchers need to develop grant writing skills. In this podcast, Methodology Center Investigator and Professor of Psychology at Wesleyan University Lisa Dierker discusses topics including how to learn what works in grant writing, the best funding mechanisms, and how to approach grant writing … Continue reading

Time-Varying Effect Modeling Interest Group for Penn State

Ashley Linden-Carmichael

August 5, 2019: This fall, Methodology Center Investigator Ashley Linden-Carmichael will be hosting a special interest group for researchers who are interested in time-varying effect modeling (TVEM). TVEM is a data-analysis method that extends linear regression to allow the association between two variables to be modeled without making assumptions about the nature … Continue reading

Free Webinar on Configural Frequency Analysis

July 10, 2019: Configural frequency analysis (CFA) is a data analysis method that can detect patterns that occur more or less often than would be expected to occur according to a prespecified null hypothesis. CFA is applicable across many fields, but in human development, researchers apply it to examine multiple … Continue reading

Fond Farewells

Ben Bayly, Jessica Braymiller, Walter Dempsey, Cara Exten Rice, Jamie Gajos, Grace Mak, Sarah Perzow, Ashley Walton, Mengya Xia

July 9, 2019: Each academic year there are arrivals and departures, but 2019 has seen an unusually high number of former investigators and trainees moving up the ladder in their career. Join us in congratulating all of them! Ben Bayly accepted a position as assistant professor of family studies, child and … Continue reading

New Resource for Learning TVEM

simulated TVEM graphic

May 10, 2019: Our newest resource helps scientists teach themselves how to use our time-varying effect modeling (TVEM) SAS macro. TVEM allows scientists to understand how associations between variables change over time. The TVEM Learning Path is designed to allow SAS users to efficiently teach themselves how to prepare data … Continue reading

“MOST-ly Mingling” at SPR

Kate Guastaferro

May 1, 2019: Methodology Center Investigator Kate Guastaferro will host an informal gathering during the Society for Prevention Research 2019 Annual Meeting to socialize and network with people considering or applying the multiphase optimization strategy (MOST). The gathering will be held on Wednesday, May 29, at 7:00 p.m. at the Eclipse Kitchen & … Continue reading

Join Us at SPR!

April 30, 2019: Join us at the Society for Prevention Research (SPR) 2019 Annual Meeting, May 28 through 31 in San Francisco. Methodology Center researchers will present symposia, talks, posters, a technical demonstration, and participate in the SPR Cup. We hope to see you there! Below is a list of the places where you can … Continue reading

Video Overview of Latent Transition Analysis (LTA)

Bethany Bray

April 22, 2019: Our latest video provides a 15-minute conceptual overview of latent transition analysis (LTA). Methodology Center Investigator Bethany Bray uses an analysis about ex-smokers to demonstrate the types of questions LTA can answer and how LTA differs from LCA. Latent transition analysis (LTA) and latent class analysis (LCA) are closely related … Continue reading

New TVEM SAS Macro Accommodates Survey Weights and Clusters


April 12, 2017: We are pleased to release the newest extension of our TVEM (time-varying effect model) software. The %WeightedTVEM SAS macro (version 2.6) fits TVEMs on complex datasets that involve clustering (e.g., students are nested within schools) and survey weights (e.g., participants represent different numbers of population members due to systematically unequal probabilities of … Continue reading

Esra Kurum Receives Distinguished Alumni Award

Linda Collins and Esra Kurum

March 21, 2019: Congratulations to Esra Kurum, assistant professor of statistics at University of California Riverside, recipient of The Methodology Center 2018 Distinguished Alumni Award. Esra develops models for time series and repeated measures longitudinal data. More specifically, she models time-varying trends in data and explores relationships between variables that … Continue reading

Video: Two-Hour Webinar on Latent Class Analysis (LCA)

Bethany Bray

March 19, 2019:   Thanks to all who participated in our 1 & 1 workshop on latent class analysis (LCA). This is a video of the webinar that Methodology Center Associate Director Bethany Bray presented on Thursday, February 26, 2019. The video includes both the one-hour presentation and the one-hour question-and-answer session that followed. This recording is … Continue reading