If the publication decisions of journals are a function of the statistical significance of research findings, the published literature may suffer from "publication bias." This paper describes a method for detecting publication bias. We point out that to achieve statistical significance, the...

Partisanship has long been known to affect people's attitudes and votes, but political scientists increasingly suggest that it may also affect people's beliefs about purely factual matters. For example, Republicans seem more likely than Democrats to believe that the deficit rose during the...