Answer: Gender schema
Explanation: The gender schema theory explains how individuals learn and align to gender roles in differences in their culture. It argues that gender related characteristics are learn from a child's early stage of development whereby the individual tries to adjust his behavior in other to align to the gender norms established in his culture. This cultural norms associated with gender is maintained by members of a certain cultural group and systemically transmitted to other members of the culture.
The refusal of the 5-year old girl to meet the neighbor's 6-year old boy is a result of cultural schema developed by the girl from her previous environment.