Co-rumination, or excessive discussion of problems within friendships, has been associated with internalizing symptoms and is especially prevalent among adolescent girls. Eighty-three early adolescent girls participated in a prospective study further examining this construct. Co-rumination was positively correlated with depressive symptoms and positive aspects of friendship, but did not predict longitudinal changes in depressive symptoms. Co-rumination was negatively related to social anxiety when controlling for depressive symptoms. Co-rumination correlated positively with romantic experiences, and the two interacted to predict longitudinal changes in depressive symptoms, implying that co-rumination may only be depressogenic under certain circumstances. Theoretical ramifications for the construct of co-rumination and interpersonal aspects of adolescent internalizing symptoms are discussed.
Keywordsco-rumination; depression; social anxiety; adolescence; friendship; romantic involvement Co-rumination (Rose, 2002) is defined as excessive discussion of problems within friendships, including repeated conversations, conjecture about the causes, and heightened focus on negative emotions. The construct emerged in response to the apparent contradiction that although high quality friendships protect against internalizing symptoms (La Greca & Harrison, 2005), and girls tend to have closer and more disclosing friendships than boys (Furman & Buhrmester, 1992;McNelles & Connolly, 1999), girls remain more vulnerable to internalizing symptoms. Based on the association between rumination and depression (e.g., Nolen-Hoeksema, 1991;Nolen-Hoeksema, Parker, & Larson, 1994), Rose (2002) proposed that co-rumination plays a role in the development of depression and anxiety, and showed that co-rumination is positively correlated with internalizing symptoms in a sample of children and adolescents. Rose also showed that girls co-ruminate more than boys, and that this becomes more pronounced in adolescence, coinciding with the emergence of gender differences in depression (Nolen-Hoeksema & Girgus, 1994). Rose demonstrated that co-rumination is positively correlated with positive friendship quality and closeness, counterintuitively suggesting that certain aspects of closeness in peer relationships may leave youth at risk for internalizing symptoms. In a follow-up to her initial study, Rose and colleagues also showed that co-rumination prospectively predicted increases in depressive symptoms and anxiety (Rose, Carlson, & Waller, 2007).Portions of these results were presented at the 2007 annual meeting of the Society for Research on Child Development in Boston, MA.Publisher's Disclaimer: This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final citable form. Please note that during the production proce...