Peer pressure refers to the influence exerted by a peer group

Peer group

A peer group is a social group consisting of humans. Peer groups are an informal primary group of people who share a similar or equal status and who are usually of roughly the same age, tended to travel around and interact within the social aggregate Members of a particular peer group often have...

 in encouraging a person to change his or her attitudes

Attitude (psychology)

An attitude is a hypothetical construct that represents an individual's degree of like or dislike for something. Attitudes are generally positive or negative views of a person, place, thing, or event— this is often referred to as the attitude object...

, value

Value (ethics)

In ethics, value is a property of objects, including physical objects as well as abstract objects , representing their degree of importance....

s, or behavior

Behavior

Behavior or behaviour refers to the actions and mannerisms made by organisms, systems, or artificial entities in conjunction with its environment, which includes the other systems or organisms around as well as the physical environment...

 in order to conform

Conformity

Conformity is the process by which an individual's attitudes, beliefs, and behaviors are influenced by other people.Conformity may also refer to:*Conformity: A Tale, a novel by Charlotte Elizabeth Tonna...

 to group norm

Norm (sociology)

Social norms are the accepted behaviors within a society or group. This sociological and social psychological term has been defined as "the rules that a group uses for appropriate and inappropriate values, beliefs, attitudes and behaviors. These rules may be explicit or implicit...

s. Social groups affected include membership groups, when the individual is "formally" a member (for example, political party

Political party

A political party is a political organization that typically seeks to influence government policy, usually by nominating their own candidates and trying to seat them in political office. Parties participate in electoral campaigns, educational outreach or protest actions...

, trade union

Trade union

A trade union, trades union or labor union is an organization of workers that have banded together to achieve common goals such as better working conditions. The trade union, through its leadership, bargains with the employer on behalf of union members and negotiates labour contracts with...

), or a social clique

Clique

A clique is an exclusive group of people who share common interests, views, purposes, patterns of behavior, or ethnicity. A clique as a reference group can be either normative or comparative. Membership in a clique is typically exclusive, and qualifications for membership may be social or...

. A person affected by peer pressure may or may not want to belong to these groups. They may also recognize dissociative groups with which they would not wish to associate, and thus they behave adversely concerning that group's behaviors.

In young people, youth

Youth

Youth is the time of life between childhood and adulthood . Definitions of the specific age range that constitutes youth vary. An individual's actual maturity may not correspond to their chronological age, as immature individuals could exist at all ages.-Usage:Around the world, the terms "youth",...

 peer pressure is considered as one of the most frequently referred to forms of peer pressure.