Identity taking or role-playing is, according to Tony Bilton, the primary way in which individuals creates and develops not only their social identity but also their personal identity as well. Jenkins noted too that identity is internal, that is, what we think of ourselves, and external, that is, how others see us. He claims that interaction, while a key factor in the development of one's social identity is not solely responsible for our social development. Social Class, Gender, and Ethnicity also play significant roles.
Social class is the clear distinction of the division of the population based on economic considerations such as inequality in terms of wealth or income. Karl Marx believed that this situation determined social identities of all individuals within society. Marx viewed class as greater than even gender or ethnicity.
Gender often refers to the socially constructed categories of masculine and feminine. Society uses these biological differences to assign various social roles to each of the two genders. Such as the age-old concept that women's place are in the home while men, the providers, must work to support their wives and children. Sociobiologists in particular believe in the naturalistic fallacy, which is because of their genes males and females must act or respond in a specific manner. For example they would claim