Self-other differences in children's perceptions about the causes of important events.

Three studies examined differences between children's (ages 8-15) beliefs about the effectiveness of multiple internal and external causes for producing outcomes in their own lives versus in those of their peers. Differences specific to the school domain were found: Starting at age 11 or 12, children perceived internal causes as more important for others than for themselves; and only beliefs about the self related to perceived control. More strikingly, a sample of gifted children, who presumably receive social feedback that they are different from their peers, reported that (a) they exerted more control and possessed more ability than their peers and (b) other children knew less about the causes of school performance and had to rely more on effort and powerful others; only beliefs about the self correlated to cognitive performance. These results suggest that self-other differences are produced by both developmental change and environmental opportunities.