Too much reliance on deviation from social norms to understand abnormality can lead to systematic abuse of human rights. Racist/sexist. Social norms change but some radical psychologists still believe people are abused
Different cultures have different types of abnormality definitions. Social norms vary from one community to the other or generation to generation . Creates problems with one culture living with another
Deviation from social norms is never the sole reason for defining abnormality as there are lots of other factors to consider- distress to others from psychopathy
A person could live a fulfilled/happy and not need to have a label calling them 'abnormal'. Might have a negative effect on how others view the person or how they view themselves
IQ scores over 130 are just as unusual as IQ below 70 but super-intelligence is not undesirable and required to treat. Just because some people display certain behaviours making their behaviour statistically abnormal but not required of treatnent
There is real-life application on statistical definitions diagnosing intellectual disability disorder and thus, there is a place for statistical infrequency. All assessments of patients include some measurements on how severe their symptoms are compared to statistical norms