A criticism of Maslow's hierarchy of needs is that it is culturally biased, as it was devised by western psychologists so one could argue it can only be applied to western societies. It has been found that, for example, Americans focus more on self-actualisation whereas Chinese, Japanese, and Korean people value cultural actualisation more. This means that any research on it cannot be generalised as it is not applicable to some cultures, meaning it is limited in scopre.