Everyone's a Critic (Sometimes): Young Children Show High Awareness of, But Lower Adherence to, Prosocial Lying Norms.

From an early age, children are taught norms about socially-acceptable behaviors; however, children's ability to recognize these norms often predates their tendency to follow them. This conflict between understanding and action has been predominantly studied in cases when enacting the norm would be costly for the child (i.e. when sharing would result in forgoing resources), but is underexplored in more low-cost scenarios. The current study examined the gap between children's knowledge and behavior in a context with a low personal cost: telling a prosocial, or white, lie. Children (N = 46) evaluated objectively poor drawings in three contexts: in one context, children were asked how a third-party character should act in a story (to assess knowledge) and in the other two contexts, children were asked to provide real-time feedback to another person and to a puppet (to assess behavior). Results indicated that children endorsed prosocial lying norms (i.e. said the story character should give the drawing a good rating) at a significantly higher rate than they demonstrated through their own lie-telling behaviors (i.e. their willingness to give social partners good ratings). These data indicate that the discrepancy between children's knowledge of social norms and their actual behaviors cannot simply be attributed to the personal costs of enacting social norms. Instead, this competence-performance gap may be due to the fact that children are often taught social rules via hypothetical situations but enacting behaviors in real-world situations may require additional skills, such as inhibition and the processing of complex, multimodal social cues.