“…The common factor research paradigm focuses on processes of change related to client, therapist, or relationship characteristics. For example, substantial support has emerged for the importance of the therapeutic alliance in couple interventions from a meta‐analysis (Friedlander, Escudero, Heatherington, & Diamond, ) as well as studies on therapy (e.g., Anker, Owen, Duncan, & Sparks, ; Knobloch‐Fedders, Pinsof, & Mann, ) and relationship education programs (e.g., Quirk, Owen, Inch, France, & Bergen, ).…”