NIH Record - National Institutes of Health

Next ‘Mind the Gap’ Webinar Features Muller, Glueck

Dr. Muller portrait
Dr. Keith Muller
Dr. Glueck
Dr. Deborah Glueck

The Office of Disease Prevention (ODP) will host a Methods: Mind the Gap webinar with Dr. Keith Muller and Dr. Deborah Glueck on Friday, Apr. 29 at 1 p.m. ET.

Planning a reproducible study requires selecting a sample size expected to ensure appropriate statistical power. Advances in statistical methods and free point and click software have made it easy to select a sample size for clustered and longitudinal designs with linear mixed models. 

The software, a suite of training modules and reference materials are freely available online. The software interface and training materials are aimed at health scientists, and have been validated in face-to-face and online courses. 

Dr. Keith Muller and Dr. Deborah Glueck will discuss what the software and training cover, what they do not cover and what they hope to add. 

Muller is a biostatistician specializing in the design and analysis of multilevel and longitudinal research. He is a fellow of the American Statistical Association. He earned bachelor’s and master’s degrees in psychology from Bradley University, as well as a doctorate in quantitative psychology and a master’s degree in theoretical statistics from the University of North Carolina at Chapel Hill. 

Glueck is the senior biostatistician at the Lifecourse Epidemiology of Adiposity & Diabetes Center at the Colorado School of Public Health and professor of pediatrics at the University of Colorado Denver School of Medicine. She has a career-long focus on power and sample size for multilevel and longitudinal studies and the analysis of longitudinal epidemiological cohort studies and randomized controlled clinical trials. 

Registration is required. Register at: The webinar will be recorded and available on the ODP website within approximately 2 weeks. 

The Methods: Mind the Gap webinar series explores research design, measurement, intervention, data analysis and other methods of interest in prevention science. For more information, visit:

The NIH Record

The NIH Record, founded in 1949, is the biweekly newsletter for employees of the National Institutes of Health.

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