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April 18, 2019

12:00–1:30 p.m. Eastern Time


Join the What Works Clearinghouse for a webinar on confounding in group design studies.

The webinar will cover:

  • An overview of the WWC definition of confounds and why they are problematic
  • An in-depth discussion of confounds and practice identifying them
  • An examination of the prevalence of confounding in WWC-reviewed studies

Participants will learn strategies and tips for identifying confounds when reviewing studies for the WWC.

This webinar is intended for researchers, WWC reviewers, and practitioners who want to learn more about confounding in group design studies, including why confounds are problematic and how to identify them.


  • Herbert Turner, Principal Scientist, ANALYTICA
  • Natalya Gnedko-Berry, Senior Researcher, American Institutes for Research

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