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The ABCs of Group Perception
Affect = Prejudice
Behavior = Discrimination
Cognition = Stereotyping
Stereotyping
A belief that connects an entire group with certain traits
Prejudice
A positive or negative evaluation of people based on their group
Discrimination
Treating someone differently because of their group
Social Categorization
Sorting people into groups
Group
Consists of people who interact over time and share an identity, goal, or fate
Ingroup
A group you belong to
Outgroup
A group you do not belong to
Ingroup Bias
Favoring your own group
Outgroup Homogeneity Effect
Thinking “they are all alike,” while noticing differences within your own group
Schemas
Organized knowledge in memory
Spreading Activation
Activating one idea makes linked ideas easier to access
Priming
Occurs when recent exposure makes an idea more accessible and affects a later judgment
Confirmatory Bias
Noticing or interpreting evidence in ways that support an existing belief
Subtyping
Treating a person who contradicts a stereotype as an exception, so the original stereotype stays intact
Self-Fulfilling Prophecy
An expectation changes your treatment of someone, and that treatment encourages a response that seems to confirm your expectation
How to Reduce Automatic Stereotyping
Egalitarian goals
Perspective taking
Focusing on individual informal
Implementation intention (“When I notice a group cue, I will consider information that challenges the stereotype.”)
Sexism
Prejudice or discrimination based on gender, including institutional or cultural practices that maintain one gender’s dominance
Gender
Cultural meanings and expectations associated with masculinity, femininity, and other gender identities
Sex
A classification assigned at birth based on sex characteristics, such as male, female, and intersex
Objectification
Treating a person, especially a woman, mainly as a body or object rather than a full person with abilities, thoughts, and agency
Hostile Sexism
Openly negative or resentful beliefs about women, especially women seen as challenging men’s power
Example: Calling women unfit for leadership because they are “too emotional”
Benevolent Sexism
Apparently affectionate or protective beliefs that assume women are weak, dependent, or need men’s protection
Example: Excluding a qualified woman from a demanding role “for her own good.”
Ambivalent Sexism
The combination of hostile and benevolent sexism. Someone may praise women who follow traditional roles while resenting women who challenge them
Implicit Sexism
Automatic or unintended gender-based associations that can influence judgments and treatment
Example: Automatically picturing a man when hearing “leader”
Why does benevolent sexism matter?
A belief can sound kind, but also limiting. It implies women are less capable and weak
Racism
Race-based prejudice or discrimination, including institutional or cultural practices that promote one racial group’s domination over another
Old-fashioned Racism
Blatant, explicit racial hostility or claims of racial inferiority. The bias is direct and hard to explain away
Modern Racism
Subtle bias that appears when it is socially safer or can be justified using a seemingly nonracial reason
Example: Applying an ambiguous hiring standard more harshly to a racial minority applicant
Implicit Racism
Automatic or unintended racial associations that can affect judgment or behavior. It can differ from a person’s stated commitment to equality
Dovidio et al. (1999)
Explicit/self-report prejudice related to more controlled verbal responses; implicit prejudice related to nonverbal behavior such as less eye contact and more blinking. A person’s words may sound accepting while the interaction feels cold
Stereotype Threat
Worry about confirming a negative group stereotype can distract someone and harm performance
Social Identity Theory
Part of self-esteem comes from group memberships
Favoring your ingroup, improving its status, or identifying with a valued group can support self-esteem
Realistic Conflict Theory
Actual or perceived competition over limited resources, such as jobs or political power, can produce intergroup hostility.
Perceived threats can matter even without direct competition
Contact Hypothesis
Contact between groups works best with equal status, mutual interdependence/cooperation toward shared goals, personalized interaction, and support from authorities or social norms
(Putting people in the same room does not guarantee improvement)
Attitude
A positive, negative, or mixed evaluation of a person, object, or idea
Positive Attitude
High positive reaction, low negative reaction
Negative Attitude
Low positive reaction, high negative reaction
Ambivalent Attitude
High positive and negative reactions
Indifferent Attitude
Low positive and negative attitudes
Tripartite Model of Attitudes
Attitudes have affective, behavioral, and cognitive bases. These bases can conflict
How do we measure attitudes?
Self-report
Bogus pipeline
Facial EMG
Evaluative priming
When do attitudes predict behavior?
When attitude and behavior match in target, action, context, and time
The attitude based are consistent and not ambivalent
The situation allows free choice
The attitude is strong
Strong Attitudes
Tend to persist, resist persuasion, and predict behavior
Persuasion
The process of changing attitudes
What are the factors of persuasion?
Source (who delivers the message)
Message (what is said)
Audience (who receives it)
The Elaboration Likelihood Model (ELM)
Elaboration means thinking carefully about a message.
Motivation and ability determine how much elaboration occurs.
A personally relevant topic raises motivation; distraction or fatigue can reduce ability
Central Route
Careful evaluation of the message’s evidence and logic. Most likely when motivation and ability are high.
Strong arguments are more persuasive than weak ones.
Attitudes formed through careful thinking generally last longer, resist counterarguments, and guide behavior more reliably
Peripheral Route
Limited evaluation of the arguments, with greater reliance on simple cues such as attractiveness, expertise, number of arguments, or pleasant association
Most likely when motivation or ability is low.
Resulting changes are generally less durable.
Petty, Cacioppo, & Goldman (1981)
Students heard a proposal for comprehensive graduation exams. Researchers varied personal relevance (next years versus in ten years), argument quality (strong versus weak), and source expertise (an expert commission versus a high-school class). The outcome was attitudes toward the proposal
Results of Petty, Cacioppo, & Goldman (1981)
High relevance: Argument quality had a larger effect. Strong arguments produced more favorable attitudes than weak arguments, support central processing.
Low relevance: Source expertise had a larger effect. An expert source produced more favorable attitudes, supporting peripheral processing.

When personal relevance is high, attitudes reflect careful consideration of the message arguments

When personal relevance is low, attitudes reflect source expertise
Cognitive Dissonance Theory (Festinger)
Inconsistency between beliefs, attitudes, or behavior can create uncomfortable psychological tension. People are motivated to reduce that discomfort
How People Reduce Dissonance
Change behavior: Stop smoking
Change an attitude or belief: Convince yourself smoking is less risky than you though
Add supporting cognition: “Smoking helps me handle stress)
Reduce importance: “Health is not my main priority right now”
Reducing discomfort does not always mean correcting the behavior or reasoning accurately
When does behavior change attitudes?
Insufficient justification
Insufficient punishment
Effort justification
Post-decision dissonance
Insufficient Justification
An external reward or excuse is too small to explain a freely chosen action that conflicts with an attitude. The person may change the attitude to justify the action internally
Insufficient Punishment
A threatened punishment is too mild to fully explain why you avoided doing something, so you may convince yourself that you didn’t really want to do it anyway
Effort Justification
Valuing an outcome more after working or suffering to obtain it
Post-decision Dissonance
Discomfort after choosing between appealing options. People may emphasize chosen option’s strengths and downplay the rejected option’s strengths; the alternatives seem farther apart
Self-Perception Theory (Bem)
People infer their attitudes by observing their own behavior and its circumstances, especially when attitudes are weak or unclear. Discomfort is not required!
Self-Esteem Account (Aronson)
Dissonance is especially important when behavior threatens a valued self-image, such as being competent, honest, or kind
New Look at Dissonance (Cooper & Fazio)
Emphasizes personal responsibility for
Conformity
Changing perceptions, opinions, or behavior to match group norms. No direct request is necessary.
Norm
A shared expectation about appropriate behavior.
A descriptive norm concerns what people do
An injunctive norm concerns what people approve of
Two Reasons People Conform
Informational influence: Following others because you believe they are correct. Common when the situation is ambiguous. It can produce private acceptance as well as public agreement
Normative influence: Following others to gain acceptance or avoid rejection. You may agree publicly without changing your private belief
Sherif (1936)
Participants estimated movement of a stationary light in a dark room. The autokinetic effect made it appear to move, creating an ambiguous task. Group estimates converged on a shared norm, illustrating informational influence.
Asch Study
Participants judged clearly visible line lengths after confederates gave wrong answers. They conformed to the incorrect majority group on roughly 32% to 37% of the critical trials. The study illustrates normative pressure even when the correct answer is clear.
What affects conformity?
Group Size: Adding a few people increases pressure, but increases level off; influence does not grow endlessly
Allies in dissent: One dissenter breaks unanimity and makes independence easier
Accuracy incentives: Rewarding correct answers can increase attention to accuracy
Awareness or norms: A clear, noticeable norm can guide behavior
Culture, group status, and personality: Also matter; situational effects are often larger
Minority influence
A numerical minority can influence a majority through consistent dissent, being accepted within the group, and avoiding a threat to the group’s existence
Minority influence can encourage private acceptance, careful though, and creativity
Idiosyncrasy Credits (Hollander)
Trust earned by demonstrating competence and initially following group norms. An accepted insider may later have more freedom and influence to challenge those norms.
Compliance
Changing behavior in response to a direct request.
Why Requests Work
Mindlessness: Responding using a familiar shortcut rather than examining the request
Norm of reciprocity: Feeling that you should return a favor or concession. Pre-giving uses a favor or gift before asking for something
Door-in-the-face
Large —> smaller
Asking a large favor likely to be refused, then a smaller favor.
The reduction feels like a concession, encouraging reciprocity
That’s-not-all
Improve the deal before an answer
Present an offer, then reduce its price or add benefits before the person decides.
The apparent concession encourages reciprocity
Foot-in-the-door
Small —> larger related request
Get agreement to a small request, then make a different, larger related request
Consistency pressure and a helpful self-image encourage agreement
Low-balling
Commit —> raise the cost
Get agreement, then reveal a higher cost for the same commitment.
People may stay consistent with their earlier decision
Other Factors to Compliance
Scarcity: makes a limited opportunity seem more valuable or urgent
Similarity/Attractiveness: may increase liking and compliance, depending on the audience
Independence, assertiveness, and defiance resist compliance