In a series of 3 experiments, the authors investigated the influence of symmetry of variables on children's and adults' data interpretation. They hypothesized that symmetrical (i.e., present/present) variables would support correct interpretations more than asymmetrical (i.e., present/absent) variables. Participants were asked to judge covariation…

This study examines preschoolers' acquisition of the maxims of the Cooperative Principle and the sociocognitive scaffolds that support this acquisition. In Study 1, 84 children between 3 and 5 years old were required to make passive judgments of violations of the Cooperative Principle. Results showed that children consistently identified…

This research examined children's performance on second-order false belief tasks as a function of the content area for the belief and the method of assessing understanding. A total of 70 kindergarten and first-grade children responded to four second-order stories. On two stories, the task was to judge a belief about a belief, and on two, the…

In a series of 3 experiments modeled after infant studies, 3- to- 6-year-old children's intuitive knowledge about support was assessed. Different objects were shown either sufficiently supported or not. Children had to predict whether a block would remain standing on a platform upon release or make perceptual judgments about the possibility of a…