Answer:
Realistic group conflict theory
Explanation:
Realistic group conflict theory is a term socio-psychology, that describes a form of social psychological model of intergroup conflict, either locally or globally.
It explains various ways in which intergroup hostility can arise due to conflicts in goals and competition over limited resources, while at the same time, seek to explain the cause of feelings of prejudice and discrimination toward the outgroup that accompany the intergroup hostility.
The competition among the group can either be real or perceived scarcity of resources such as money and power.
Hence, in this case, This field study provided support for the REALISTIC GROUP CONFLICT theory of prejudice.