causal structure. However, they do not always explore their environment in a way that
generates appropriate data for causal learning. Here, we consider a potential reason that
children do not explore systematically: whether the nature of their first action influences their
subsequent play. Four-to 7-year-olds (N= 105) saw ambiguous data about a novel causal
system and were then allowed to explore this system through play. The nature of their first …