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 ...
There was controversy recently over how sound data collection procedures in India are, especially when it comes to some of the important national level surveys. An article (by Shamika Ravi, Member of ...
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 ...
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 ...
Wondering how many people in the United States have a smartphone? If you poll 20 people on the street, your survey won’t be representative of the entire American population. But if you just want to ...
The Pew Hispanic Center conducted a public opinion study among people of Latino background or descent that was designed to elicit opinions on issues related to the 2010 Census. In order to fully ...
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 ...
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