Product Search Search Effective Health Care website Submit search Search Tip: Use double quotes around phrases to rank exact matches higher in the result list. 3 results Change Score or Followup Score? An Empirical Evaluation of the Impact of Choice of Mean Difference Estimates White Paper April 20, 2015 A Primer for Systematic Reviewers on the Measurement of Functional Status and Health-Related Quality of Life in Older Adults White Paper September 23, 2013 Reporting the Findings of Updated Systematic Reviews of Comparative Effectiveness: How Do Users Want To View New Information? White Paper May 16, 2013