The authors examined the relation between therapist process variables (adherence and competence) and subsequent symptomatic change in patients. Twenty-nine depressed patients were seen in 16 sessions of weekly supportive expressive (SE) dynamic psychotherapy. Change in depression from intake to Session 3 predicted higher ratings of adherence to expressive (interpretative) techniques during Session 3 but not their competent delivery. Partialling pretreatment psychiatric severity, therapists' adherence to use of expressive techniques, and previous symptomatic improvement, relatively competent delivery of SE-specific expressive techniques predicted subsequent improvement in depression. Secondary analyses addressing alternative explanations (such as the role of either therapeutic alliance or general therapeutic skills) did not change the results.