attitudes refer to an evaluation of something such as a person, object event or idea.
Affective component is the emotional reaction or feeling on the individual has towards an object, person, group, event or issue.
behavioral component is the way in which an attitude is expressed though our actions.
cognitive component is the beliefs we have about an object, person, group, even, or issue.
stereotypes is a collection of beliefs we have about the people who belong to a certain group regardless of individual difference among members of that group.
stereotypes can be inaccurate, not based on facts or evidence, ignores individuality, lead to socialstigma and leads to prejudice.
an in-group is any group you belong to or identify with
an out-group is a group you do not belong to or identify with.