One possible explanation for the variability in estimates across the different nonprobability samples is the range of methods that online sample vendors employ. They differ on recruitment, weighting ...

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 ...

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 ...

Referring to recent confusion over whether UK crime statistics are going up or down, he said: “I’ve got a lot of time for varied and creative approaches to data collection, but when you’re looking at ...

Discover why options market data suggests a lower crash risk for U.S. stocks than pundit surveys, and how to optimize asset ...

Chances that the U.S. is heading for a recession are close to 50-50, according to a Deutsche Bank survey that raises more questions about the direction of the U.S. economy. The probability of a ...

Discover how emotional biases impact stock market crash estimates. See why expert analysis suggests lower risk and learn how to refine your own forecasts.