Informational Social Influence in AP Psychology

In AP Psychology, informational social influence is conforming to others' behavior or judgments because you believe they have more accurate knowledge, especially in ambiguous situations. It is one of the two types of social pressure described by social influence theory (AP Psych 4.3.A).

What is Informational Social Influence?

Informational social influence happens when you look to other people for guidance because you aren't sure what's going on and you assume they know better. The situation is ambiguous, so other people's behavior becomes your evidence. Think of it as treating the crowd like a cheat sheet. You're not copying them to fit in. You're copying them because you think they're right.

The CED frames this under social influence theory, which says social pressure to behave or think a certain way can be normative or informational (AP Psych 4.3.A). The informational side is about the desire to be correct. Because you actually believe the group's information, informational influence tends to produce real, private acceptance (internalization). You'd keep the new belief even after the group leaves. Compare that with going along publicly while privately disagreeing.

Why Informational Social Influence matters in AP® Psychology

Informational social influence lives in Unit 4: Social Psychology and Personality, Topic 4.3 Psychology of Social Situations. It directly supports AP Psych 4.3.A (explain how the social situation affects behavior and mental processes), where the essential knowledge names normative and informational influence as the two forms of social pressure. It also helps you explain AP Psych 4.3.B (how being in a group affects an individual) and AP Psych 4.3.C (prosocial behavior), because uncertainty about what's happening shapes both group decisions and whether bystanders help. The big theme is that situations, not just personalities, drive behavior. This term is one of the cleanest ways to show it.

How Informational Social Influence connects across the course

Conformity (Unit 4)

Conformity is the umbrella. Informational and normative influence are the two reasons people conform. If a question asks why someone went along with a group, decide whether they wanted to be right (informational) or wanted to be liked (normative).

Bystander Effect (Unit 4)

In an unclear emergency, you scan other people to figure out if something is actually wrong. If everyone else looks calm, you read their calm as information that nothing serious is happening, so nobody helps. That's informational influence quietly feeding the bystander effect, alongside diffusion of responsibility.

Social Proof (Unit 4)

Social proof is informational influence put to work in persuasion. Lines outside a restaurant or "best-seller" labels tell you that lots of people chose this, so it must be good. The logic is the same: other people's choices count as evidence.

Central Route to Persuasion (Unit 4)

Informational influence and central-route persuasion both change minds through information people actually accept. That's why both are linked to lasting attitude change rather than surface-level compliance.

Is Informational Social Influence on the AP® Psychology exam?

On multiple choice, expect scenario stems where you have to identify which type of influence is at work. Fiveable practice questions show the common patterns:

• Classroom or task scenarios. Students give better answers after discussing in small groups, which shows people pooling information to get it right.
• Internalization vs. compliance. You're asked which type of influence would lead someone to truly adopt a behavior. Informational influence is the answer because the person believes the information.
• Asch's conformity studies. Participants gave wrong answers despite knowing the right one. That's normative, not informational, and the exam uses it to test whether you can tell them apart.
• Research design. You may be asked how to set up an experiment that maximizes one type over the other. Ambiguous tasks and expert-seeming others push informational influence. Public responses and a desire for acceptance push normative influence.

The term also appears in the 2018 SAQ Q2, built around a survey of high school students' physical and psychological health. On free response, you need to apply the term to a specific scenario. Say who is uncertain, who they're looking to, and why they believe that person or group knows more. Just defining it won't earn the point.

Informational Social Influence vs Normative Social Influence

Both make you conform, but the motive is different. Informational influence comes from wanting to be right. You're unsure, so you trust others' knowledge, and you usually privately agree. Normative influence comes from wanting to be accepted. You go along to avoid rejection, even when you know the group is wrong, as in Asch's line studies. Quick test: if the person would change back once alone, it's probably normative. If they'd keep the belief, it's informational.

Key things to remember about Informational Social Influence

• Informational social influence means conforming because you believe other people know more than you do.

• It is strongest when a situation is ambiguous or when the others seem like experts.

• Social influence theory in AP Psych 4.3.A says social pressure can be either informational or normative.

• Informational influence tends to cause internalization, so the person genuinely accepts the new belief and keeps it even in private.

• Asch's participants who gave wrong answers while knowing the right one were showing normative influence, not informational influence.

• In unclear emergencies, people read others' calm reactions as information, which helps explain the bystander effect.

Frequently asked questions about Informational Social Influence

What is informational social influence in AP Psychology?

It's conforming to others because you think they have more accurate information, usually when you're unsure what's going on. The CED lists it as one of two forms of social pressure under social influence theory in Topic 4.3.

Is Asch's conformity experiment an example of informational social influence?

No, not mainly. Asch's participants could clearly see the correct line and still gave wrong answers to match the group, which is normative social influence (wanting to fit in). AP questions use Asch specifically to test whether you can tell the two apart.

What's the difference between informational and normative social influence?

Informational influence is driven by the desire to be correct, and it usually leads to private acceptance. Normative influence is driven by the desire to be liked or avoid rejection, and it often leads to public compliance without private agreement.

Does informational social influence lead to compliance or internalization?

Internalization. Because you actually believe the information the group gives you, the change sticks even when no one is watching. That's the answer a social influence theory MCQ is looking for.

How does informational social influence relate to the bystander effect?

When an emergency is ambiguous, bystanders look to each other to decide whether something is wrong. If everyone appears calm, each person concludes there's no emergency, so fewer people help. This works alongside diffusion of responsibility, another Topic 4.3 concept.