The Cognitive aspect which is only thoughts or knowledge and beliefs that someone has about the outgroup. Ideas, knowledge, and beliefs about a specific group can be known as a schema. This is called stereotyping.
The Affective aspect which is an individual’s own personal biased feeling or emotions about the outgroup. This can involve being afraid of or hating a group. This is prejudice.
The Behavioural aspect which involves the actions of an individual towards an outgroup that treats the differently or unfairly and how attitude influences the behaviour