12.3 attitudes and persuasion 
Attitudes
Definition: Evaluation of a person, idea, or object; typically positive or negative.
Components:
Affective: Feelings about the subject.
Behavioral: Impact on behavior.
Cognitive: Beliefs and knowledge.
Cognitive Dissonance
Defined by Leon Festinger (1957) as discomfort from holding inconsistent attitudes, behaviors, or cognitions.
Example: Believing smoking is unhealthy while smoking causes dissonance.
Reduction Strategies:
Change behavior (quit smoking).
Change beliefs (rationalize smoking).
Add new cognition (benefits of smoking).
Justification of Effort
Concept: We value achievements that require significant effort.
Example: Participants rated a boring group more favorably if they had a difficult initiation.
Persuasion
Definition: Process of changing attitudes through communication.
Yale Attitude Change Approach
Features influencing persuasion:
Source credibility and attractiveness.
Message characteristics (subtlety, sidedness, timing).
Audience characteristics (attention, intelligence, self-esteem, age).
Elaboration Likelihood Model
Describes two routes to persuasion:
Central Route: Logic-driven, uses facts. More durable attitude change.
Peripheral Route:Indirect, relies on peripheral cues (e.g., celebrity endorsement). Less permanent change.
Foot-in-the-door Technique
Method: Getting agreement to small request increases likelihood of larger request.
Example: Agreeing to a small task leads to agreement on a larger task later on.