Differences in the Evaluation of Generic Statements About Human and Non‐Human Categories

Cognitive Science 41 (7):1934-1957 (2017)
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Generic statements express generalizations about categories. Current theories suggest that people should be especially inclined to accept generics that involve threatening information. However, previous tests of this claim have focused on generics about non-human categories, which raises the question of whether this effect applies as readily to human categories. In Experiment 1, adults were more likely to accept generics involving a threatening property for artifacts, but this negativity bias did not also apply to human categories. Experiment 2 examined an alternative hypothesis for this result, and Experiments 3 and 4 served as conceptual replications of the first experiment. Experiment 5 found that even preschoolers apply generics differently for humans and artifacts. Finally, Experiment 6 showed that these effects reflect differences between human and non-human categories more generally, as adults showed a negativity bias for categories of non-human animals, but not for categories of humans. These findings suggest the presence of important, early-emerging domain differences in people's judgments about generics.



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Author Profiles

Joshua Knobe
Yale University
Susan Gelman
University of Michigan, Ann Arbor

References found in this work

Thinking, Fast and Slow.Daniel Kahneman - 2011 - New York: New York: Farrar, Straus and Giroux.
The Empirical Case for Two Systems of Reasoning.Steven A. Sloman - 1996 - Psychological Bulletin 119 (1):3-22.
Generics: Cognition and Acquisition.Sarah-Jane Leslie - 2008 - Philosophical Review 117 (1):1-47.

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