Abstract: This paper studies how parents shape the ego-relevant information children receive about themselves and how it influences the beliefs and behavior of children. Using a field experiment with 7th-grade Norwegian students and their parents, we show that parents provide their children with feedback that is systematically more favorable than parents’ private beliefs. Children incorporate this positively biased feedback into their self-assessments. The gap between parents’ private beliefs and communicated feedback is larger when feedback precedes task completion, suggesting motivational intent. The study contributes to the understanding of how social transmission of self-relevant information, rather than just individual cognitive biases, shapes overconfidence.