Numbers, Facts and Trends Shaping Your World

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    1. Assessing the accuracy of online nonprobability surveys

    To better understand the current landscape of commercially available online nonprobability samples, Pew Research Center conducted a study in which an identical questionnaire was administered to nine samples supplied by eight different vendors along with the Center’s probability-based online panel. A benchmarking analysis – in which a subset of each survey’s results was compared to […]

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    3. Demographic, political and interest profiles

    Many nonprobability sample vendors have the ability to provide samples of respondents that, by design, are forced to align with characteristics of the U.S. population. Often those characteristics are demographics such as gender and age, though some vendors also use nondemographic variables. When a vendor forces the sample to match the population on a particular […]

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    Many Americans Hear Politics From the Pulpit

    As the political season transitioned from the primaries to the general election campaign, many American churchgoers were hearing at least some discussion of social and political issues from the pulpits at their houses of worship.