Outline and evaluate attempts to define abnormality
Abnormality can be hard to define and my opinion generally is very biased, as all 3 attempts of defining them are supported with good background.
Deviation from social norms
The main difficulty with the concept of deviation from social norms is that it varies as times change. What was socially acceptable 100 years ago may not be socially acceptable today e.g. being homosexual is acceptable in today’s society, whereas, in the past it wad frowned upon and was seen as a disorder more than a choice. If abnormality will begin to be defined by deviation from social norms then this is based on previous social morals and attitudes. This gives the opportunity for mental health specialists to classify people as mentally ill, if they go against basic social morals.