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 ...

In December 2016, NHK introduced a dual frame telephone survey that used mobile phones in addition to conventional land-line phones. This survey method does not weight samples to re-balance the data ...

Survey sampling and estimation methods form the cornerstone of modern statistical inference, underpinning research across the social, medical, and natural sciences. At their heart, these methods ...

The number of Americans who rely solely or mostly on a cell phone has been growing for several years, posing an increasing likelihood that public opinion polls conducted only by landline telephone ...

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 ...

NHK has introduced a dual frame telephone survey that uses land-line and mobile phones for December 2016 Survey on “Attitudes and Values on Society and Life.” This article reports how the newly ...