Once a child has identified with groups, they positively evaluate their group and negatively evaluate the outgroup. This is done as it boosts self esteem. In turn it makes the child to be like their group and avoid behaviours of outgroups. They gather info about own group, and develop gender schemas. GST is that it can explain the power of gender beliefs. These beliefs can lead to fixed gender attitudes as it ignores and conflicting info not consistent with the ingroup. Eg if a boy sees a film with a male nurse, its ignored as it doesn’t fit with ingroup schema.