Abstract
The Facilitative Interpersonal Skills (FIS) task is a performance test of therapists’ use of common relational skills (e.g. empathy, building expectations). The FIS method includes (a) materials that simulate difficult client moments on video, which are used to collect therapists’ responses to these situations; and (b) independent ratings of these responses. Many of the FIS items are informed by psychotherapy processes that have been linked to outcome and facilitative conditions that have been reframed as individual therapist skills (e.g. alliance bond capacity). Overall, the FIS has predicted psychotherapy outcome. A single study is described in which FIS predicted the therapist effect using multilevel modelling of a large sample of clients who were nested within therapists. We also summarise two additional outcome studies that used experimental designs. One future direction is to better understand how therapists form responses to these difficult moments. We conclude that forming an optimal therapeutic response during challenging, emergent in‐session situations involves responsiveness (Stiles et al., 1998), or finding a response that fits the clients’ needs within any moment.