- Advantages and disadvantages
- Social norms change between cultures and over time. For example before the 1970's homosexuality was seen as a mental illness, but not any more.
- Cross-cultural misunderstandings are common for example there are high diagnosis rates of schizophrenia amongst non-white british people.
- Classification of abnormality can only be based on the context in which behaviours occurs for example the same behaviour may be seen as normal or abnormal e.g. undressing in the classroom or the bathroom