Study shows a massive narcissistic bias in the way some Americans remember the contributions of their home states to US history. When asked, participants routinely gave their home state higher scores for its contribution to US history than those provided by non-residents of the state.

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Study shows a massive narcissistic bias in the way some Americans remember the contributions of their home states to US history. When asked, participants routinely gave their home state higher scores for its contribution to US history than those provided by non-residents of the state.