{"id":52821,"date":"2008-02-28T14:00:00","date_gmt":"2008-02-28T19:00:00","guid":{"rendered":"https:\/\/alpha.pewresearch.org\/pewresearch-org\/2008\/02\/28\/about-this-survey-2\/"},"modified":"2024-04-14T03:48:59","modified_gmt":"2024-04-14T08:48:59","slug":"about-this-survey-2","status":"publish","type":"post","link":"https:\/\/alpha.pewresearch.org\/pewresearch-org\/politics\/2008\/02\/28\/about-this-survey-2\/","title":{"rendered":"About this 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 1,508 adults, 18 years of age or older, from February 20-24, 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\/398-40.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 1,508 adults, 18 years of age or older, from February 20-24, 2008. The following table shows the error attributable to sampling that would be expected at the 95% level of confidence 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