AbstractThis study investigated the roles of implicit and explicit narcissism in the relationship between downward social comparison and mobile phone addiction. We randomly recruited 529 college students to complete the downward social comparison scale, mobile addiction tendency scale, and implicit and explicit narcissism questionnaires. Results showed that (1) downward social comparison positively related to implicit narcissism and mobile phone addiction but negatively related to explicit narcissism. Moreover, mobile phone addiction negatively related to explicit narcissism and positively rel...