• Central to Pietraszewski's theory is a set of group-constitutive roles within four triadic primitives. Although some data from the developmental and biological sciences support Pietraszewski's theory, other data raise questions about whether similar behavioral expectations hold across various ecological conditions and interactions. We discuss the potential for a broader set of conceptual primitives that support reasoning about groups.
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    Core Knowledge and Conceptual Change (edited book)
    with D. Barner
    Oxford University Press. 2016.
    Only humans learn concepts like atom, integer, and democracy. But by all appearances, these abstract ideas are not present in the initial human state when babies are born. Other concepts like object, cause, or agent may be present early in infancy, if not innately. This volume explores the controversial science of human conceptual development, a traditional battleground for debates surrounding human nature. Are humans born good and tainted by an imperfect world? Or do we need to teach children t…Read more
  • Is the inherence heuristic simply WEIRD?
    Behavioral and Brain Sciences 37 (5): 481-481. 2014.
    Although many studies suggest that children and adults focus more on internal causes rather than situational causes to explain observed patterns, such findings may be more limited to WEIRD populations samples. Evidence from cross-cultural studies may point to several distinct attribution mechanisms with their culturally specific deployment reflecting both a developmental achievement as well as a possible signal of group boundaries.