Six Things to Know about P-Values

Six Things to Know about P-Values

Whenever I write a research report, I feel strongly ambivalent about flagging data as “statistically significant.” If possible, I try to avoid it altogether. Why? Because p-values and concepts of statistical significance are often misunderstood, misused, and misleading. Indeed, the problem is so prevalent that one well-respected scientific journal in social psychology (Basic and Applied…

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.…