The Public Opinion Quarterly, Vol. 82, No. 4 (Winter 2018), pp. 707-744 (38 pages) Many studies in various countries have found that telephone and internet surveys of probability samples yielded data ...

Statistics are often estimated from a sample rather than from the entire population. If the inclusion probability of the sample is unknown to the researcher, that is, a nonprobability sample, naively ...

In addition to point estimates (e.g., % approving of President Barack Obama’s job performance), public opinion polls are often used to determine what factors explain a given attitude or behavior. For ...

Comparison of probability (simple random sampling) and non-probability sampling (convenience sampling) methods. R code for simulating a convenient sample, simple random sample, and compare bias and ...

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"It should never have appeared in the press," blared an article from The Guardian's Lois Beckett last week—seeming to refer to the findings of a recent Brookings Institution survey of college students ...

AP VoteCast is a survey of the American electorate conducted in all 50 states by NORC at the University of Chicago for The Associated Press and Fox News . The survey of 138,929 registered voters was ...