Final answer:
Reference groups are groups of people with whom one compares oneself. They provide norms for individuals to judge their abilities and social success.
Step-by-step explanation:
A group of people with whom one compares oneself are called reference groups. Reference groups provide a set of norms against which individuals can judge their abilities and social success. They can include peer groups, such as classmates and friends, as well as other groups like family members or professional colleagues.