Chalk Talk: Getting Started with Interim Analysis -- Group Sequential Tests

Chen, Yi-Fan. (2018, April 10) Statistical Getting Started with Interim Analysis: Group Sequential Tests [PDF of PowerPoint slides]. Institute for Health Research and Policy, University of Illinois at Chicago.

Group sequential tests are commonly used for interim analysis in clinical trials to monitor progress for early termination. Dr. Chen introduced such an analysis and demonstrated a simple example in R software.

Hosted by the IHRP Methodology Research Core, Chalk Talks are Informal educational seminars that focus on current methodological issues in population health sciences.

Intended for doctoral-level health scientists and social science researchers focusing on social determinants of health and population health investigations, these sessions are usually held on the second Tuesday of the month at 1 p.m.

Learn more about the Methodology Research Core at

For more information, contact Juliet Pineros at