Behavioural approaches:

The strengths of behaviourism is that it is scientific, has good evidence and is measurable.  It can be explained by conditioning at a young age without the influence of feelings or thoughts.

All behaviour is learned rather than inherited.  Behaviour is a response to a stimulus.  Behaviourists consider that your acquire an abnormal behaviour through life experience.

Behavioural approaches are particular good for anxiety, assertiveness, smoking and weight management.