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April 11, 2019

12:00–1:30 p.m. Eastern Time


Join the What Works Clearinghouse (WWC) for a free webinar on the new guidelines for reviewing analyses with missing or imputed data under the WWC Standards Handbook, Version 4.0.

The webinar will cover:

  • Acceptable methods for addressing missing data
  • Assessing potential bias from missing or imputed outcome data
  • Assessing baseline equivalence in studies with missing or imputed baseline data

Presenters will also share specific examples to demonstrate how WWC missing data standards have changed from Version 3.0 to Version 4.0.

This webinar is primarily intended for researchers and WWC reviewers.


  • Jessaca Spybrook, Professor of Evaluation, Measurement and Research, Western Michigan University
  • David I. Miller, Researcher, American Institutes for Research

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