The social contagion hypothesis: comment on 'Social contagion theory: examining dynamic social networks and human behavior'
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A New Method for Inducing a Depression-Like Behavior in Rats
Published on: February 22, 2018
1Department of Statistics, Carnegie Mellon University, Pittsburgh, PA, U.S.A. acthomas@stat.cmu.edu
Abstract:
I reflect on the statistical methods of the Christakis-Fowler studies on network-based contagion of traits by checking the sensitivity of these kinds of results to various alternate specifications and generative mechanisms. Despite the honest efforts of all involved, I remain pessimistic about establishing whether binary health outcomes or product adoptions are contagious if the evidence comes from simultaneously observed data.
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