Question

A common ingredient underlying the success of different psychotherapies is the

Answer 1

A common ingredient underlying the success of different psychotherapies is the clients self-motivation to make a change.

Step-by-step explanation:

Answer 2

A common ingredient underlying the success of different psychotherapies is the client's expectation that psychotherapy will make things better. Those who believes that they will be better while going through psychotherapy will really do well because of the so-called psychological effect.