What is the difference between individual therapy on the one hand and couple and family therapy on the other? Individual therapy focuses mainly on the intrapersonal, "inner world" of the person. Secondly, depending on the kind of treatment, the interaction pattern with others may be discussed. Couples and family therapy primarily look at the interpersonal, the interaction patterns between partners and between family members. After that, individual aspects are addressed. Individual therapy, on the one hand, and couple and family therapy on the other require different specialized training and skill. Couples and family therapy are also known as "systems therapy."
If a therapist works systemically and is certified or licensed as such, it does not automatically imply that they do not have a psychological background. Some psychologists and psychiatrists are trained in both.