Researcher: A number of studies have suggested that, on average, clients in short-term psychotherapy show similar levels of improvement regardless of the kind of psychotherapy they receive
So any client improvement in short-term psychotherapy must be the result of some aspect or aspects of therapy that are common to all psychotherapies -- for example, the presence of someone who listens and gives attention to the client
More-experienced therapists tend to use a wider range of techniques and interventions in psychotherapy than do inexperienced therapists.