The study is designed to observe the impact of improved measures of the fidelity on the community delivery of Interpersonal Psychotherapy. In Phase I, 250 pairs of therapist-patient dyads will be observed as IPT Fidelity measures are developed and validated. In Phase II, 175 pairs of therapist-patient dyads will be observed to prospectively validate the IPT Fidelity measures with longitudinal outcomes on the PHQ-9.
The study is designed to observe the impact of improved measures of the fidelity on the community delivery of Interpersonal Psychotherapy. Pairs of therapist-patient dyads will be observed, first to develop and test brief measures of fidelity, and then to correlate those measures with symptomatic outcomes.