Current research indicates that the rate of girls' antisocial behavior is rapidly surpassing that of boys'. Adolescent Girls: The Role of Depression in the Development of Delinquency focuses on predictors of misconduct by adolescent girls, citing depression as a key component. This NIJ Research Preview, based on a longitudinal study being conducted in Chicago, lists characteristics of depression, compares the relationship between clinical depression and antisocial behavior, and discusses levels of depressive symptoms among females.