Premium
Internal consistency, intercriterion overlap and diagnostic efficiency of criteria sets for DSM‐IV schizotypal, borderline, avoidant and obsessive‐compulsive personality disorders
Author(s) -
Grilo Carlos M.,
McGlashan Thomas H.,
Morey Leslie C.,
Gunderson John G.,
Skodol Andrew E.,
Tracie Shea M.,
Sanislow Charles A.,
Zanarini Mary C.,
Bender Donna,
Oldham John M.,
Dyck Ingrid,
Stout Robert L.
Publication year - 2001
Publication title -
acta psychiatrica scandinavica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.849
H-Index - 146
eISSN - 1600-0447
pISSN - 0001-690X
DOI - 10.1111/j.1600-0447.2001.00436.x
Subject(s) - cronbach's alpha , psychology , discriminant validity , clinical psychology , personality disorders , convergent validity , dsm 5 , psychometrics , personality , borderline personality disorder , psychiatry , internal consistency , social psychology
Objective: To evaluate performance characteristics of DSM‐IV Personality Disorders (PDs) criteria. Method: Six hundred and sixty‐eight adults recruited for the Collaborative Longitudinal Personality Disorders Study (CLPS) were assessed with diagnostic interviews. Results:Within ‐category inter‐relatedness was evaluated by Cronbach's alpha and median intercriterion correlations (MIC). Cronbach's alpha ranged from 0.47 to 0.87 (median=0.71); seven of the 10 PDs had alphas greater than 0.70. Between ‐category criterion overlap was evaluated by ‘inter‐category’ intercriterion correlations between all PD pairs (ICMIC). ICMIC values (median=0.08) were lower than MIC values (median=0.23). Diagnostic efficiency statistics (sensitivity, specificity, positive predictive power and negative predictive power were calculated for schizotypal, borderline, avoidant and obsessive‐compulsive PDs. Conclusion: DSM‐IV PD criteria sets have some convergent validity and discriminant validity: criteria for individual PDs correlate better with each other than with criteria for other PDs. Diagnostic efficiency statistics provide guidance regarding usefulness of criteria for inclusion or exclusion.