Attitude Change Theory — First Encounter
You already know what an attitude is: a settled way of thinking or feeling about something. "I like classical music." "I believe exercise is important." "I think that political party is dishonest." These are attitudes. They sit inside you, shaping how you see the world and how you act.
Now the real question: How do you change one?
That is what Attitude Change Theory is about. It is not a single formula but a family of explanations for why and how people shift from one position to another — sometimes slowly, sometimes in a flash.
The core intuition
Think of the last time you changed your mind about something meaningful. Maybe you disliked a subject until a teacher made it come alive. Maybe you were neutral about a brand until a friend raved about it. Maybe you held a strong opinion, then encountered a fact that forced you to rethink.
In every case, something happened to you. A message arrived. A contradiction appeared. A social pressure mounted. The theories below are just different ways of describing what that "something" is and how it does its work.
The precise statement
Attitude Change Theory refers to the set of psychological models that explain how and why an individual's evaluation of an object, person, group, or idea shifts from one valence (positive/negative/neutral) to another, typically in response to communication, experience, or internal inconsistency.
That is the formal version. But you will not be tested on that sentence. You will be tested on the mechanisms — the specific theories that tell you how the change happens.
The major theories you need to know
There are several, and each answers a different "why."
| Theory | Core Idea | Key Figure |
|---|
| Cognitive Dissonance | Inconsistency between attitudes or between attitude and behaviour creates discomfort; you change the attitude to reduce it. | Leon Festinger |
| Self-Perception | You infer your attitude by observing your own behaviour, especially when the attitude is weak. | Daryl Bem |
| Elaboration Likelihood Model (ELM) | Attitude change happens via two routes: central (careful thinking) or peripheral (superficial cues). | Petty & Cacioppo |
| Social Judgment Theory | You compare new information to your existing anchor point; change depends on how far the message is from your current position. | Sherif & Hovland |
| Balance Theory | You prefer harmony among your likes/dislikes; if a person you like dislikes something you like, you feel unbalanced and change. | Fritz Heider |
Let me walk you through the two most important ones for Indian exams.
Cognitive Dissonance Theory — the heavyweight
Dissonance = psychological tension from holding two inconsistent cognitions (beliefs, attitudes, or behaviours). People are motivated to reduce it.
Example: You believe smoking is harmful, but you smoke. That is inconsistency. You cannot easily stop smoking (behaviour is hard to change), so you change the attitude: "Smoking isn't that harmful. My grandfather smoked and lived to 90." The attitude shifts to match the behaviour.
Key exam point: Dissonance is strongest when:
- The behaviour is freely chosen (no coercion)
- The behaviour has important consequences
- The behaviour is hard to undo
A common mistake: students think dissonance causes attitude change directly. It does not. Dissonance causes discomfort, and the person chooses a strategy to reduce it — changing the attitude is just one strategy. Others include adding new consonant beliefs, trivialising the inconsistency, or denying the evidence.
Elaboration Likelihood Model — the two roads
This one is elegant and exam-favourite.
People process persuasive messages along one of two routes depending on their motivation and ability to think. …