An attitude "is a summary evaluation of an object of thought. An attitude object can be anything a person discriminates or holds in mind." Attitudes include beliefs (cognition), emotional responses (affect) and behavioral tendencies. In the classical definition an attitude is persistent, while in more contemporary conceptualizations, attitudes may vary depending upon situations, context, or moods.

Affect, in psychology, refers to the underlying experience of feeling, emotion, attachment, or mood. In psychology, "affect" refers to the experience of feeling or emotion. It encompasses a wide range of emotional states and can be positive or negative. Affect is a fundamental aspect of human experience and plays a central role in many psychological theories and studies. It can be understood as a combination of three components: emotion, mood, and affectivity. In psychology, the term "affect" is often used interchangeably with several related terms and concepts, though each term may have slightly different nuances. These terms encompass: emotion, feeling, mood, emotional state, sentiment, affective state, emotional response, affective reactivity, disposition. Researchers and psychologists may employ specific terms based on their focus and the context of their work.