Personal finance questions elicit slightly different answers in phone surveys than online
People polled by telephone are slightly less likely than those interviewed online to say their personal finances are in “poor shape.”
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Telephone polls still provide accurate data on a wide range of social, demographic and political variables, but some weaknesses persist.
The first video in Pew Research Center’s Methods 101 series helps explain random sampling – a concept that lies at the heart of all probability-based survey research – and why it’s important.
An experiment comparing responses to 27 questions fielded on both a telephone and a web survey found no significant mode differences in overall opinion about Trump or many of his signature policy positions.
As telephone interviewing costs continue to rise and cellphones represent an increasing share of survey samples, survey researchers are exploring approaches to make these designs more cost-effective.
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