Larger group whose relationship are formal and institution

Secondary groups

Explanation:

Social groups are the groups that include humans who share common goals and characteristics to perform certain duty. Primary groups and secondary groups are the two broad divisions of social groups. Primary groups involve members who persists personal and close relationships with each other. In secondary groups formal relationships exists among the members. They share common motive and are goal oriented. Unlike primary groups, secondary groups are temporary.

answer; when one group has an extremely high score at pretest;