The Existence of the Borderline Diagnosis: Studies on Diagnostic Validity

The author discusses the validity of the borderline concept in terms of the recent empirical research. Five phases of exploration are reviewed; namely, clinical descriptions, laboratory studies, delineation from other disorders, follow-up studies, and family studies. These data are related to the current status of the diagnosis for clinical practice and to areas warranting further research. The conclusions reached show initial support for the …