Erratum to “Correlation not Causation: The Relationship between Personality Traits and Political Ideologies” American Journal of Political Science 56 (1), 34–51
Basically, for a fairly well known research program about political ideology and personality traits, they figured out they mislabeled the dataset, perfectly switching liberal with conservative. So if you ever find yourself quoting "conservatives are...." and/or "liberals are...." you should check it out. Multiple corrections were issued.
If you'd just like a cliffnotes version and explanation of erratum issued for several other studies of this type, Retraction Watch published this: