{"id":71096,"date":"2021-01-14T13:57:33","date_gmt":"2021-01-14T18:57:39","guid":{"rendered":"https:\/\/alpha.pewresearch.org\/pewresearch-org\/2021\/01\/14\/methodology-36-4\/"},"modified":"2024-06-27T12:42:39","modified_gmt":"2024-06-27T16:42:39","slug":"methodology-36-4","status":"publish","type":"post","link":"https:\/\/alpha.pewresearch.org\/pewresearch-org\/religion\/2021\/01\/14\/methodology-36-4\/","title":{"rendered":"Methodology"},"content":{"rendered":"\n

The data in this report comes mainly from three different sources: The aggregated set of all of the random-digit dial (RDD) telephone surveys the Center conducted between January 2019 and July 2020; the annual profile survey (conducted Aug. 3 to 16, 2020) the Center administers to respondents in its American Trends Panel (ATP), which is an online survey panel recruited through national, random sampling of residential addresses; and the 2020 National Public Opinion Reference Survey (NPORS), conducted online and by mail June 1 to Aug. 11, 2020.<\/p>\n\n\n\n

Details about how the Center conducts its RDD telephone surveys is available here<\/a>. Specific information about how the March 20 to 25, 2019, RDD survey was conducted is available here<\/a>.<\/p>\n\n\n\n

Details about methods used for ATP surveys are available here<\/a>.<\/p>\n\n\n\n

Details about how the NPORS was conducted are available here.<\/a><\/p>\n\n\n\n

The complete text of the wording of the questions analyzed in this report is available in the questionnaire<\/a>.<\/p>\n\n\n\n

The following table shows the unweighted sample sizes and the error attributable to sampling that would be expected at the 95% level of confidence for the data sources analyzed here:<\/p>\n\n\n\n

\"Table<\/a><\/figure>\n\n\n\n

In addition to sampling error, one should bear in mind that question wording and practical difficulties in conducting surveys can introduce error or bias into the findings of opinion polls.<\/p>\n\n\n\n

Pew Research Center undertakes all polling activity, including calls to mobile telephone numbers, in compliance with the Telephone Consumer Protection Act and other applicable laws.<\/p>\n\n\n\n

Pew Research Center is a nonprofit, tax-exempt 501(c)(3) organization and a subsidiary of The Pew Charitable Trusts, its primary funder.<\/p>\n\n\n\n

CORRECTION (April 2021): A previous version of this report incorrectly stated the NPORS responding sample size. None of the study\u2019s findings or conclusions are affected.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

The data in this report comes mainly from three different sources: The aggregated set of all of the random-digit dial (RDD) telephone surveys the Center conducted between January 2019 and July 2020; the annual profile survey (conducted Aug. 3 to 16, 2020) the Center administers to respondents in its American Trends Panel (ATP), which is 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