In 2020, Pew Research Center launched a new project called the National Public Opinion Reference Survey (NPORS). NPORS is an annual, cross-sectional survey of U.S. adults. Respondents can answer by paper, online or over the phone, and they are selected using address-based sampling from the United States Postal Service’s Computerized Delivery Sequence File. The response rate to the latest NPORS was 32%, and previous years’ surveys were designed with a similarly rigorous approach.
NPORS estimates are separate from the American Trends Panel (ATP) – the Center’s national online survey platform. Pew Research Center launched NPORS to address a limitation that researchers observed in the ATP. While the ATP was well-suited for the vast majority of the Center’s U.S. survey work, estimates for a few outcomes were not in line with other high-quality surveys, even after weighting to demographics like age, education, race and…
