When friends make you blue: the role of friendship contingent self-esteem in predicting self-esteem and depressive symptoms.

This research examines the role of friendship contingent self-esteem (FCSE), or self-esteem that is dependent on the quality of one's friendships, in predicting depressive symptoms. In Study 1, the authors developed a measure of FCSE. Both FCSE and others' approval correlated with self-esteem and depressive symptoms, but when entered simultaneously in a regression equation, only FCSE significantly predicted self-esteem and depressive symptoms. Study 2 showed that dependency and close friendship competence predicted depressive symptoms only for those high in FCSE. In Study 3, a diary study, FCSE predicted self-esteem instability. Self-esteem instability, in turn, predicted depressive symptoms. Furthermore, a three-way interaction of rumination, FCSE, and the valence of the event predicted momentary self-esteem. Findings are discussed with regard to the importance of considering FCSE when investigating interpersonal risk for depression.