Therapist effects on dropout in couple therapy.

Marriage and family therapy scholars have argued that therapists play a crucial role in successful couple therapy, yet little research has empirically documented that the therapist in couple therapy has a significant impact on outcomes. Known as the study of therapist effects, this study sought to assess the amount of variance attributed to the therapist in couple therapy outcomes. Using dropout as the outcome variable, this study analyzed data from 1,192 couples treated by 90 masters and doctoral student therapists at a university-based training clinic.