To understand the evidence supporting them as important therapeutic elements, the contextual model of psychotherapy is outlined. Then the evidence, primarily from meta-analyses, is presented for particular common factors, including alliance, empathy, expectations, cultural adaptation, and therapist differences.
This passage establishes the Contextual Model as the organizing theoretical framework through which evidence for common factors — alliance, empathy, expectation, cultural adaptation, and therapist variability — is systematically evaluated.
, How important are the common factors in psychotherapy? An update, 2015thesis