The data in this Pew Research Center report is drawn from a national cross-sectional survey conducted by Westat. The sampling design of the survey was an address-based sampling (ABS) approach, ...
Survey methodology encompasses the systematic approach to designing, administering and analysing surveys to ensure reliable and valid data. Central to this discipline is the optimisation of response ...
The American Trends Panel (ATP), created by Pew Research Center, is a nationally representative panel of randomly selected U.S. adults. Panelists participate via self-administered web surveys.