Four studies of therapy for depression used actual recordings of therapy sessions to study what therapists said and did that was effective or ineffective. (psychcentral.com)
By having actors lip - sync to actual recordings of actual dialogue, we are presented with a series of convincing but conflicting accounts about an individual we know very little about. (rottentomatoes.com)
Similar stats have come up in the last year or so, such as this one comparing Wenger's actual record in his first ten years vs his second ten years: (caughtoffside.com)