The Inventory of Interpersonal Problems (IIP-64) as a Screening Measure for Avoidant Personality Disorder
We investigated the usefulness of the Inventory of Interpersonal Problems (IIP-64) as a screening measure for avoidant personality disorder (AVPD), and for personality disorder (PD) in general. A total of 159 female participants filled out the IIP-64 and then took part in a structured clinical interview for the DSM-IV personality disorders (SCID-II). Interview-based diagnoses of AVPD (N = 21) were predicted with good diagnostic accuracy by a single scale (socially inhibited) of the IIP-64, whereas the presence of any kind of PD (N = 37) was more accurately predicted by the IIP-64 total score. The IIP-64 not only assesses general personality pathology, but may also be used in screening for specific kinds of personality pathology, which have greater clinical relevance.