Much research has supported the proposal that depression is associated with faulty information processing, negative self-schemas and the negative triad. This is a strength as it shows that Beck's explanation has good supporting evidence.
What is a strength of Beck's explanation?
It has practical application in CBT: Beck's cognitive explanation forms the basis of CBT. This is a strength as all cognitive aspects of depression can be challenged in CBT.
What is a weakness of Beck's explanation?
The theory explains the basic symptoms of depression, however, it is a complex disorder with a range of symptoms, not all of which can be explained. This is a weakness as it shows that Beck's explanation does not explain all aspects of depression.