Development of inhibition as a function of the presence of an intentional agent

This thesis examined the developmental differences in inhibition and theory-of-mind of 4-8 year olds as a function of the suggested presence of a supernatural agent. All children played four games designed to assess their current level of inhibition and theory-of-mind performance; Children in the experimental condition, only, were also introduced to an invisible Princess Alice and were told that she was watching during the games. Following these measures, all children engaged in a resistance-to-temptation task to determine any differences in inhibition resulting from Princess Alice's suggested presence. I found that children exhibiting a well-developed theory-of-mind were more likely to express belief in Princess Alice than were children lacking this cognitive ability. This research provided support that cognitive maturity, rather than immaturity, may be necessary for children to express belief in novel supernatural agents, and highlighted the importance of context as a mediating factor in children's behavioral inhibition.