Note: This report was updated on Dec. 30, 2015 to reflect the January-July 2015 National Health Interview Survey estimates released on December 1, 2015. Telephone surveys face numerous challenges, but ...

Results for the general public survey are based on telephone interviews conducted March 15-29, 2011 among a national sample of 2,142 adults 18 years of age or older living in the continental United ...

Exit polls 2026: learn what post-poll surveys are, how they are conducted using sampling methods, legal rules under the ...

Targeting matters most. Surveying the wrong audience can lead to misleading data and poor decisions, even if the questions themselves are solid. Weighting shapes reality. Overrepresenting certain ...

SHELTON, Conn., March 15, 2011 /PRNewswire/ -- Survey Sampling International (SSI)—the leading global provider of online and offline sampling solutions—has appointed Chris DeAngelis to head its new ...

The 8th ESRA (European Survey Research Association) Conference was held in Croatia in July 2019, which staged 220 sessions on survey research. Among them, this article focuses on the latest cases of ...