Pew Research Center designed this study to assess the current state of online survey sampling methods – both probability-based and opt-in – and determine their accuracy on general population estimates ...
Survey research is an important tool for capturing public opinion. Social scientists, market researchers, policymakers and more rely on surveys to capture the big picture of the public's perception.
Ipsos conducted the National Public Opinion Reference Survey (NPORS) for Pew Research Center using address-based sampling and a multimode protocol. The survey was fielded from May 19 to Sept. 5, 2023.
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