“…The findings were compared statistically with either social class or educational background or both variables in (a) community residents of Durham, North Carolina (Swartz et al, 1990); (b) European countries such as Italy and Norway (Alnaes & Torgersen, 1988;Bellodi et al, 1992;Dahl, 1986); (c) diagnoses of borderline personality according to the DIB; (d) Borderline Personality Scale; and (e) DSM-111-R criteria. Patients in 4/11 studies were evaluated for the diagnoses of borderline PD according to either the DIB or revised version (DIB-R) (Clarkin, Widiger, Frances, Hurt & Gilmore, 1983;Schulz et al, 1989;Zanarini et al, 1988Zanarini et al, , 1989. In the study, however, conducted at Western Psychiatric Institute (Schulz et al, 1989), the DIB criteria could not be assessed for convergent validation with the DSM-I11 diagnosis.…”