Behaviour therapy is a broad term referring to psychotherapy, behaviour analytical, or a combination of the two therapies. In its broadest sense, the methods focus on either just behaviours or in combination with thoughts and feelings that might be causing them. Those who practice behaviour therapy tend to look more at specific, learned behaviours and how the environment influences those behaviours. Those who practice behaviour therapy are called behaviourists. They tend to look for treatment outcomes that are objectively measurable. Behaviour therapy does not involve one specific method but it has a wide range of techniques that can be used to treat a person's psychological problems. Behaviour therapy breaks down into four disciplines: applied behaviour analysis (ABA), the teaching-family model (TFM), positive behavior support (PBS) and cognitive behaviour therapy (CBT). ABA focuses on the application of learning theory to assess potential behaviour-change procedures and CBT focuses on the thoughts and feelings behind mental health conditions with treatment plans in psychotherapy to lessen the issue.