When students learn scientific theories that conflict with their earlier, naive theories, what happens to the earlier theories? Are they overwritten or merely suppressed? We investigated this question by devising and implementing a novel speeded-reasoning task. Adults with many years of science education verified two types of statements as quickly…

Examined how 3- and 5-year-olds and adults extend names for human-made artifacts. Found that even 3-year-olds were more likely to provide artifact names (e.g., "knife") when they believed objects were intentionally created and to provide material-based descriptions (e.g., "plastic") when they believed objects were accidentally…

Compared parental perceptions of the use of internal information sources--intuitions, religious beliefs, personal childhood experiences--to use of external sources for information about their toddlers' development. Found that parents perceived the internal sources as being used more frequently and as more useful for information on their child's…