stereotype vulnerability means to feel some type of way because something involving your ethic group or culture in the intelligent aspect is believed to be common among your group or culture. For example, African Americans are believed to score lower than White Americans. Or that white Americans score lower than Asian Americans. Believing these stereotypes can cause that person or people to be vulnerable to not trying as hard in the intelligent aspect.
An author may want to use an allusion because An allusion serves as a kind of shorthand, drawing on this outside work to provide greater context or meaning to the situation being written about.
