ABSTRACT
We examine evidence for the validity of the borderline personality disorder (BPD) construct in adolescents. Mainly, we focus on the validity of this construct in hospitalized adolescents—a severely ill population in which this diagnosis should be meaningful if it is meaningful at all. A great deal of the data for this examination were derived from our own work and that of our collaborators in the Yale Psychiatric Institute (YPI) Adolescent Follow-Up Study—though some material is drawn from other sources as well.
