Dyadic working alliance, therapist insight skills, and client outcomes: Longitudinal mediation analyses.

A number of studies have shown an association between therapist skills (particularly insight skills) and the working alliance, but few studies have examined the directionality of this relationship. In addition, studies have used either the client or therapist report of the working alliance rather than a dyadic perspective. Thus, we examined whether (a) dyadic insight skills are indirectly related to client outcome through the working alliance and (b) the dyadic working alliance is indirectly related to client outcome through insight skills. The dyadic working alliance was measured as a latent, dyadic average of both the client and therapists' reports of the working alliance. Therapist use of insight skills was operationalized via the use of skills such as interpretations, immediacies, challenges, and disclosures of insight. We used dynamic structural equation modeling to analyze longitudinal data in long-term, psychodynamic treatment. Results indicated that at the within-client level, the use of insight skills was associated with the working alliance in the next session, and the working alliance was associated with therapist use of insight skills in the next session; however, there were no mediation effects. However, at the between-client level, the pathway from working alliance at T-1 to therapist use of insight skills at T-2 to client outcome at T-3 was significant but only for clients in longer term treatments. Findings reveal the importance of the working alliance as a signal for therapists to use insight skills for client improvement in long-term, psychodynamic therapy. (PsycInfo Database Record (c) 2025 APA, all rights reserved).