Hilliard and Liben (2010)
The out-group homogeneity effect is the tendency to perceive members of an out-group as being more similar to one another than members of one's own group. In other words, people often see members of their own group as individuals while viewing members of other groups as "all the same." Hilliard and Liben (2010) investigated whether simply assigning children to gendered groups would lead them to perceive members of...