PPT Slide
Evidence Of Validity: Response Rates Were Very High
Research by the National Academy of Sciences found that the mean response rate for surveys like this is typically 55%. Last year (with a Mercer survey) your response rate was 67%; this year (with an EMPA survey) response rate rose to 77%.
As this slide suggests, our
surveys routinely beat national
benchmarks for response rate.
In this case, employees even
used their own money for stamps.