Cultural humility, working alliance, and Outcome Rating Scale in psychodynamic psychotherapy: Between-therapist, within-therapist, and within-client effects.

We examined how client working alliance (CWA) and therapist working alliance (TWA), and client-rated functioning (Outcome Rating Scale, ORS) related to client-perceived Cultural Humility (CH) of their therapist across the course of open-ended psychodynamic psychotherapy for 118 clients and 17 therapists. Clients and therapists completed measures of the WA after every session and clients completed the ORS prior to every session. Clients also judged their therapists' CH at Session 3, 8, and then every 8th session. CH data was partitioned into within-client, within-therapist, and between-therapists components and used to predict CWA, TWA, and ORS in a 4-level Hierarchical Linear Modeling (HLM) growth model. Between-therapist differences in CH were not related to next session CWA, TWA, or ORS, nor were these differences related to growth in CWA, TWA, and ORS. Within-therapist differences in CH were only related to the next session's CWA. At the within-client level, time-periods with higher CH, compared to clients' average CH, were associated with stronger next session (i.e., the immediate subsequent session) CWA and TWA, and time periods with lower CH, compared to clients' average CH, were associated with linear increase in CWA and TWA. Time-periods with high CH, compared to clients' average CH, were associated with significant increase in client functioning. Results suggest that lower CH weakens CWA and TWA in the next session but both CWA and TWA strengthen subsequently. By contrast, greater CH has no immediate effect on outcome but with greater CH psychological functioning increased over time. Implications for practice and research are discussed. (PsycInfo Database Record (c) 2022 APA, all rights reserved).