The authors compared three instruments used to diagnose borderline
personality disorder--the Diagnostic Interview for Borderline Patients
(DIB), the Schedule for Interviewing Borderlines, and the Structured
Interview for DSM-III Personality Disorders--in 56 patients with
personality disorders. A borderline diagnosis was made according to the DIB
in 30%, the Structured Interview for DSM-III Personality Disorders in 48%,
and the Schedule for Interviewing Borderlines in 55% of the patients.
Diagnostic agreement was only 52%, which has implications for the
generalizability of results of validation studies of the borderline
diagnosis. Improvement in diagnostic agreement requires modification of
current criteria sets and/or the use of dimensional models.