Why do people sometimes change behavior when other people are present?
80% Daily ReviewLocal-firstAcademic, not therapeutic
1 · Retrieval Warm-Up
Retrieval Warm-Up
Without notes, write one idea you already know that might connect to Social Influence, Norms & Conformity. Then write one question the lesson should help you answer.
2 · Essential Question
Essential Question
Why do people sometimes change behavior when other people are present?
3 · Learning Objectives
Learning Objectives
Students can:
define social influence and social norms;
distinguish informational from normative influence;
explain conformity without treating it as weakness;
identify conditions that can strengthen or reduce conformity;
distinguish group influence from proof that a belief is true.
4 · Psychology Word of the Day
social influence
Use it in context: Explain how social influence connects to today’s evidence, measure, or explanation. Do not treat knowing the word as the same thing as understanding the construct.
5 · Vocabulary in Context
Vocabulary in Context
social influence · social norm · conformity · informational influence · normative influence · unanimity · group size · public response · private belief
6 · Core Reading
Substantial Core Reading
People often use other people as information. In an uncertain situation, observing what others do may help identify what is safe, normal, or effective. This is one reason informational influence can be useful.
People also care about belonging, approval, reputation, and avoiding social cost. Normative influence occurs when behavior shifts because acceptance or rejection matters.
Conformity therefore should not be reduced to a character flaw. The scientific question is not “Who is weak?” but “What information, incentives, uncertainty, group structure, and response conditions changed behavior?”
A person can conform publicly without privately agreeing. A person can also privately accept group information. These are psychologically different outcomes.
7 · Worked Example
Worked Example / Synthesis
A fictional student changes an answer after seeing every other group member choose a different option.
Possible informational explanation: the student thinks the group may know something they missed.
Possible normative explanation: the student wants to avoid standing out.
The observed answer change alone does not reveal which process occurred.
8 · Scientist's Desk
Psychological Scientist's Desk
Evaluate one strong claim about Social Influence, Norms & Conformity. Specify what evidence would support it, weaken it, or require qualification.
9 · Data Lens
Data Lens
Fictional conformity rates:
| Condition | Conforming responses |
|---|---:|
| Alone | 8% |
| Group, one dissenter | 19% |
| Unanimous group | 37% |
| Unanimous group + public answer | 45% |
Students identify:
which condition has the highest conformity;
whether the data prove normative influence;
what additional evidence would distinguish normative from informational influence;
why percentages describe groups rather than determine individuals.
10 · Claims Laboratory
Claims Laboratory
“People conform because they are weak.”
Judgment: Unsupported moral interpretation.
Students replace the moral label with measurable variables: uncertainty, unanimity, group size, expertise, public/private response, and social cost.
11 · Guided Investigation
Guided Investigation
Build a Claim → Measure → Evidence → Alternative Explanation → Limitation → Conclusion map for Social Influence, Norms & Conformity.
11A · Extended Inquiry
Extended Inquiry from the Locked Plan
Psychological Scientist's Desk
Build a testable claim connected to Social Influence, Norms & Conformity. Define one observable variable or behavior, state how it could be measured without diagnosing a real person, identify one plausible alternative explanation, and name the kind of evidence that would strengthen or weaken the claim. Finish with a calibrated conclusion that does not exceed the evidence.
Claims Laboratory
Claim: “If many people believe something, it is probably true.”
Judgment: Cannot be inferred from popularity alone.
Students distinguish social consensus from independent evidence.
Guided Investigation
Apply Social Influence, Norms & Conformity to a fictional or de-identified case. Separate observation from interpretation, identify the psychological concept that best explains the pattern, compare at least two possible explanations, and state what additional evidence would be needed before favoring one explanation. Record one ethical boundary that limits what can responsibly be inferred.
Why Did the Person Conform?
Students analyze six fictional scenarios and classify the strongest current explanation as informational, normative, mixed, or cannot tell. Each answer requires evidence.
Independent Assignment
Create an evidence brief on Social Influence, Norms & Conformity. Use one course concept, one concrete fictional example or dataset, and one alternative explanation. Explain how the evidence supports the concept, identify a limitation, and end with a conclusion written in probability-aware language rather than a label or diagnosis.
Conformity Conditions Audit
For two fictional cases, students identify:
the social norm;
uncertainty level;
whether response is public or private;
possible social cost;
one alternative explanation;
one experimental manipulation that could test the explanation.
Completion Rule
Completion requires core reading, investigation, assignment, Research Notebook checkpoint, and review.
12 · Independent Assignment
Independent Assignment
Write a 250–400 word evidence-based analysis applying Social Influence, Norms & Conformity to a fictional, public, or non-sensitive example.
13 · Research Notebook
Research Notebook Checkpoint
If social influence may affect the semester question, define the social variable precisely. Do not write only “peer pressure.” Specify what peers do, what information is visible, and what response is measured.
14 · Academic Journal
Academic Journal Reflection
When can relying on other people be rational, and when can it mislead?
Privacy boundary: The journal is academic, not therapeutic. Fictional, public, non-sensitive, or course-supplied examples are always acceptable.
15 · Daily Review
5-question formative check
80% meets today’s completion threshold; weekly mastery comes only from the Week 10 assessment.
16 · Local Completion Record
Review status
Not yet marked reviewed
17 · Optional Completion Challenge
Challenge unlocked
This optional local activity is separate from mastery and is never used to profile ability, personality, motivation, or mental health.