What Does “Clean” Really Mean? The Implicit Framing of Decontextualized Experiments Newer:The Emergence of “Us and Them” in 80 Lines of Code: Modeling Group Genesis in Homogeneous PopulationsOlder:Religious Motivations for Cooperation: An Experimental Investigation Using Explicit Primes PostedFebruary 22, 2014 AuthorScienceSites Categories2014, journal-article Tags2014, Cooperation