Insight as a dual-perspective construct: Convergence between patients' and professional evaluators' perspective on...

Insight gained by patients during treatment has been theorized to be a central mechanism of change in psychotherapy, but empirical studies examining the association between patients' insight and psychopathological symptoms have produced mixed results. The present study addresses these inconsistencies by investigating convergence between the perspectives of patient and professional evaluator on insight and disentangling two potentially distinct components of insight: pretreatment individual differences and changes in insight during treatment. A sample of 393 patients receiving psychodynamic psychotherapy completed pre- and posttreatment measures on symptoms and insight. Professional evaluators evaluated patients' insight based on clinical interviews pre- and posttreatment. Polynomial regression and response surface analyses were used to examine congruence. The results indicate that when there was agreement between the patient and the evaluator on insight, both baseline level of insight and the changes in insight during treatment were found to be related to symptomatic change, although showing different patterns of association. Lower baseline levels of insight were significantly associated with greater symptomatic improvement than were higher levels of insight. At the same time, greater increase in insight during treatment was moderately significantly associated with greater reduction in symptoms, as long as the changes in insight were not minimal. The findings underscore the importance of assessing the congruence between patients' and professional observers' perspectives on patient insight and the potentially distinct roles of between-patients baseline differences and within-patient changes in insight during treatment. (PsycInfo Database Record (c) 2021 APA, all rights reserved).