{"id":52863,"date":"2008-02-14T11:45:00","date_gmt":"2008-02-14T16:45:00","guid":{"rendered":"https:\/\/alpha.pewresearch.org\/pewresearch-org\/2008\/02\/14\/about-the-survey-411\/"},"modified":"2024-04-14T03:48:59","modified_gmt":"2024-04-14T08:48:59","slug":"about-the-survey-411","status":"publish","type":"post","link":"https:\/\/alpha.pewresearch.org\/pewresearch-org\/politics\/2008\/02\/14\/about-the-survey-411\/","title":{"rendered":"About the Survey"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Results for this survey are based on telephone interviews conducted under the direction of Princeton Survey Research Associates International among a nationwide sample of 1,502 adults, 18 years of age or older, from January 30 to February 2, 2008. The following table shows the error attributable to sampling that would be expected at the 95% level of confidence for different groups in the survey:<\/p>\n\n<div style=\"text-align: center;\">\n<figure><img decoding=\"async\" src=\"https:\/\/assets.pewresearch.org\/wp-content\/uploads\/sites\/5\/legacy\/395-28.gif\" alt=\"\"><\/figure>\n<\/div>\n\n<p class=\"wp-block-paragraph\">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>","protected":false},"excerpt":{"rendered":"<p>Results for this survey are based on telephone interviews conducted under the direction of Princeton Survey Research Associates International among a nationwide sample of 1,502 adults, 18 years of age or older, from January 30 to February 2, 2008. The following table shows the error attributable to sampling that would be expected at the 95% 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