Dr. Nancy wants to know how effective the therapy is at St. Maximus inpatient facility. Specifically, she wants to test if the patient's depression symptoms change from therapy session one, therapy session two, and therapy session three, if the therapist has an influence on depression scores, and if there is an interaction between the therapy session times and therapist on depression scores.

Using a FACTORIAL ANOVA, test for differences in depression scores across time and therapists, as well as the interaction between the two.