Study by Ellis found 90% success rate at disputing irrational beliefs; Babyok et al found that behavioural activation was very effective in reducing negative self belief
Increases validity of the treatment
- Doesn't consider alternative treatments
E.g. drugs - CBT is more time consuming and more expensive than drugs
Not accessible to some people
- Doesn't take into account individual differences
Only helps those with irrational thoughts - not as effective for people in stressful or negative situations where depression is influenced externally