Inventory of interpersonal problems: Psychometric properties and clinical applications.

Describes a new instrument, the Inventory of Interpersonal Problems (IIP), which measures distress arising from interpersonal sources. The IIP meets the need for an easily administered self-report inventory that describes the types of interpersonal problems that people experience and the level of distress associated with them before, during, and after psychotherapy. In Study 1, psychometric data are presented for 103 patients who were tested at the beginning and end of a waiting period before they began brief dynamic psychotherapy. On both occasions, a factor analysis yielded the same six subscales; these scales showed high internal consistency and high test–retest reliability. Study 2 demonstrated the instrument's sensitivity to clinical change. In this study, a subset of patients was tested before, during, and after 20 sessions of psychotherapy. Their improvement on the IIP agreed well with all other measures of their improvement, including those generated by the therapist and by an independent evaluator. (PsycINFO Database Record (c) 2010 APA, all rights reserved)