Results for this survey are based on telephone interviews conducted under the direction of Princeton Survey Research Associates International among a nationwide sample of 1,506 adults, 18 years of age or older, from August 9-13, 2006. The results here are based on a random half of survey respondents on Form 2 of the survey (N=775) the sampling error for percentages is plus or minus 4 percentage points.<\/p>\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>","protected":false},"excerpt":{"rendered":"
Results for this survey are based on telephone interviews conducted under the direction of Princeton Survey Research Associates International among a nationwide sample of 1,506 adults, 18 years of age or older, from August 9-13, 2006. The results here are based on a random half of survey respondents on Form 2 of the survey (N=775) 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