The best example of an in-group-out-group gender schema boys can fight, but girls should play nice.
Explanation:
Gender Schema is the gender related belief which influences the behavior. It was defined by the treatment of male and female in one’s own society. They children learn gender schemas through the media, parents and society. The traditional society did not accept the profession of Women as fire fighter because according to Gender schema, this profession is only defined to the men in the society.
In group: The group with which the person is identified.
Out group: The group with which the person is not identified.
If the child is identified within the in-group, it positively accepts the points from its own group but neglects the information from out-group. This impacts of gender schemas have huge impact on what the children remember and learn from the society. The boys fighting capability is defined within the in-group and girls nice play will be in the out-group.