When attributing human nature to groups of people, ingroup and outgroup biases come into play. This occurs when the ingroup and outgroup do not have equal status. This is true for both the ingroup and outgroup. Awareness of category hierarchies has led to the development of the common ingroup identity model. Slang terms are often known only within a clique or ingroup. Stereotypes are an indicator of ingroup consensus. Both were considered as ensuring the survival and identity of an ingroup. Cross-race effect has a strong connection with the ingroup advantage phenomenon.