Ego Impairment Index (EII-2) as a predictor of outcome in short- and long-term psychotherapy during a 5-year follow-up.

Abstract

ObjectiveThis study examined the predictive ability of the Rorschach‐based Ego Impairment Index (EII‐2) on outcome of psychotherapy in different types and durations of therapy.MethodA total of 326 outpatients suffering from depressive or anxiety disorders were randomized into receiving solution‐focused (n = 97), short‐term psychodynamic (n = 101), or long‐term psychodynamic psychotherapy (n = 128). Psychotherapy outcome assessments during the 5‐year follow‐up period covered psychiatric symptoms, social functioning, and work ability.ResultsLower EII‐2 values, which indicate less problematic ego functioning, were found to predict faster improvement in both short‐term therapies as compared to long‐term psychotherapy.ConclusionThe results provide preliminary support for the utility of EII‐2 as a complementary measure to interview‐based methods for selecting between short‐ and long‐term therapies.