Why I Love Political Polls

Why I Love Political Polls

Actually, Joe Citizen does not love them, but Joe Researcher does. The horse-race polls for media release offer little value to the first Joe because the only poll that really matters is the election itself. But for Joe Researcher, political polls offer unparalleled, ongoing opportunities to understand, validate, and improve our methods of survey research.…

Versta Research Post

Research Good Enough for Judicial Review

I recently came across this strange big book, the Reference Manual on Scientific Evidence, compiled by the Federal Judicial Center and the National Research Council.  It’s not fun reading, but it provides an enormously useful and fascinating overview of what makes social and marketing research (and other kinds of scientific research, too) sufficiently rigorous to…

How to Succeed with Biased Samples

How to Succeed with Biased Samples

Leading practitioners of survey research now agree that online polling and other forms of non-probability sampling can work.  The key is to give careful attention to the survey protocols, data collection, cleaning, and back-end weighting so that ultimately the sample being analyzed matches the population you want to know about in as many relevant ways…