The Psychology of Groups Lecture Notes
The Fundamental Nature and Significance of Groups
Transition in Psychological Focus: Moving from the study of individuals and dyadic (two-person) relationships, social psychology shifts focus toward the psychology of groups, which remains a central theme for understanding human behavior.
Diversity of Group Membership: Individuals belong to a variety of groups at multiple permeating levels, including: * Sports teams and athletic clubs. * Religious organizations. * Friendship circles. * Nationalities and countries. * Online communities (e.g., subreddits). * Professional working groups.
Psychological Benefits and Significance: Groups are psychologically vital for several reasons: * Need to Belong: Humans have an inherent drive for inclusion. Being part of a group satisfies the need for social support, community, and connection, provided the individual is not being ostracized or excluded. * Evaluation of Ability: Groups serve as a social context for self-evaluation. By comparing oneself to others, an individual gains information about their own skill levels (e.g., a person knows if they are an above-average or below-average cook by how their food is received relative to others). * Validation of Beliefs: Groups provide a benchmark for reality. If an individual believes something contrary to the group (e.g., the Earth is flat), the group disagreement provides information that the individual might be mistaken. * Self-Stereotyping: This occurs when an individual applies the perceived characteristics of their group to themselves. For example, a member of a chess club might view themselves as more intelligent because they adopt the group-level stereotype of chess players.
Group Models of Self-Esteem
Nature of Self-Esteem: Self-esteem is often measured by scales (such as the Rosenberg scale) asking for agreement on statements like "On the whole, I am satisfied with myself" or "I feel I have a number of good qualities." On a scale of to , most people typically score around an .
Sociometer Model: This theory posits that internal self-esteem is actually a psychological gauge (a "sociometer") of our social standing within a group. * If an individual is included, liked, and admired by group members, the sociometer registers high social standing, resulting in high self-esteem. * If an individual is disliked or excluded, the sociometer triggers low self-esteem as a signal that there is a problem with their social belonging that needs to be addressed.
Collective Self-Esteem: This involves applying group-level success to one's own sense of self-worth. If an individual identifies with a group (e.g., MSU), and students from that group perform impactful community service or sports teams succeed, the individual feels more positive about themselves by extension. Conversely, if a rival group performs better, it can diminish collective self-esteem through unfavorable comparison.
Evolutionary Perspectives and Living Dynamics
Evolutionary Advantages of Groups: * Safety and Protection: In hunter-gatherer contexts, groups provided security. For instance, while one person sleeps, others can watch for danger (predators like lions) or ensure the safety of infants. * Shared Resources: Groups allow for mutual support and the division of labor.
Challenges of Group Living: Proximity to others requires the ability to peacefully coexist and work together. This necessitates navigating conflicting values (e.g., one person likes sports, another does not) and resolving fundamental disagreements emotionally and maturely.
Group Influence on Motivation and Performance
Social Facilitation: This occurs when the presence of others improves an individual's performance. This effect is generally limited to tasks that are: * Easy: Simple tasks requiring little cognitive load. * Well-practiced: Tasks where the individual is confident and highly skilled. * Examples: Children winding a fishing reel faster in groups, athletes setting personal records during competitions, or actors delivering powerful performances because of the audience's energy.
Social Deterioration (Social Inhibition): Performance tends to worsen in the presence of others on tasks that are complex, new, or poorly prepared. * Examples: An actor forgetting their lines due to the stress of an audience, or a student stumbling over words and using "puns" (fillers) during an underprepared presentation.
Social Loafing: A reduction in individual effort when working in a group where contributions are pooled and individual performance is not easily identified. * The Cheering Study: In a study where people were asked to cheer as loudly as possible, researchers found that individual volume decreased as the number of people in the room increased (, , or people). Participants slacked off because they believed others would cover the effort and their personal lack of volume would not be detected.
Mitigating Social Loafing in Groups
Increasing Accountability: Contributions must be made identifiable. Teachers might assign specific parts of a rubric to specific students so they receive individual grades for their portion of a group essay.
Group Size Management: Smaller groups make individual slacking harder to hide. In a group of , a contribution is hard to track; in a group of , failure is immediately attributed to the partner.
Peer Evaluations: Regular feedback from group members during a project creates internal accountability.
Interdependence: Structuring tasks so that each person’s role is unique and essential (no redundancy). If person A does not do their part, person B cannot finish theirs.
Increasing Motivation: * Meaningful Tasks: Designing an advertisement for MSU that will actually be used for university branding increases motivation more than a hypothetical assignment. * Group Cohesion: Encouraging members to care about each other ensures they do not want to let the group down.
Perceptions of Fairness: * Effort-Based Rewards: Rewards should be divvied up based on input. If one person does the work, they should receive greater compensation or recognition. * Clear Expectations: Dividing work equally from the start prevents the "sucker effect," where one person slacks because they see others slacking.
Coordination Loss and Mental Models
Concept of Coordination Loss: The phenomenon where groups do not reach their potential productivity because of the difficulty of integrating different people's efforts. people rarely produce exactly the output of one person.
Physical Example: An individual can easily touch their own index fingers together with eyes closed. It is significantly harder to touch index fingers with a partner with eyes closed because of the lack of a single controlling brain.
Shared Mental Models: High-functioning teams (like elite sports teams) develop a shared understanding of roles, goals, and rules. They can predict each other's movements and reactions (e.g., a team being "defensive" because the coach instructed them to be so).
Stages of Group Development (Tuckman’s Model)
Forming: The group learns about each other, shares past experiences/skills, and defines basic goals.
Storming: Conflict arises over procedures, purposes, and control. In the cheesecake-making metaphor, this is the stage of disagreeing over mixing techniques or who gets to eat the dough. Effective teams resolve these conflicts rather than getting stuck in them.
Norming: Development of regular standards, procedures, and roles. One person may be designated as the final decision-maker to prevent future stalemates.
Performing: The focus shifts entirely to achieving the desired goals using the established coordination systems.
Adjourning: The group wraps up its work and potentially dissolves (e.g., after the meal is prepared).
Relationship Between Cohesion and Performance
Statistical Correlation: There is a correlation coefficient of approximately between group cohesiveness and performance.
Bidirectional Causality: * Cohesion → Performance: Cohesive groups have better skill-matching, work faster to allow members more free time, and experience less social loafing because members care about one another’s outcomes. * Performance → Cohesion: Success acts as a social bonding agent, making members like and trust each other more after achieving a goal.
Group Decision Making and Groupthink
Group Polarization: Discussions often lead groups to more extreme versions of their initial opinions rather than a neutral average. Stronger voices sway the group while others remain quiet.
Groupthink: The tendency of groups to prioritize consensus and harmony over critical or realistic evaluation of the facts. * Factors Leading to Groupthink: * High Cohesion: Over-trusting the group or fearing to "rock the boat." * Isolation: Not seeking outside perspectives. * Biased Leadership: A leader who exerts too much control and does not invite dissent. * Decisional Stress: Time pressure leads to quick, uncritical decisions.
Case Studies in Groupthink: * Bud Light: The "Up for Whatever" marketing campaign used a slogan appearing to condone sexual assault ("The perfect beer for removing 'no' from your vocabulary for the night"). This likely happened because critical voices (e.g., women) were not in the room or did not feel empowered to speak up. * The Tenth Man Rule (Israel's Intelligence Model): If nine people with the same information reach the same conclusion, it is the duty of the tenth person to assume the others are wrong and find the flaws in that conclusion. This was used as a hypothetical in the context of avoiding intelligence failures (referencing historical examples like the Arab attack).
Strategies for Better Group Decisions
Structured Guidelines: Creating rules that focus on systematic evaluation and avoid the criticism of individuals so people feel safe to disagree.
Second Solution Method: After reaching a primary consensus, the group is forced to set it aside and develop at least one alternative solution.
Diversity of Perspective: Including people of different genders and cultural backgrounds. Research shows diverse boards and teams are more creative and reach better outcomes.
Downplaying Power Differences: Leaders should treat everyone as equals during the decision-making phase to reduce the fear of raising dissenting ideas.
Questions & Discussion
Examples of Groups: Students cited teams, religious organizations, friend groups, subreddits, and jobs.
Benefits of Living with Others: Students identified financial benefits and a positive impact on one's own behavior (accountability).
Challenges of Living with Others: Discussion touched on navigating differences, having to resolve disagreements emotionally maturely, and dealing with conflicting values (e.g., sports interests vs. non-interests).
Managing a Programming Team (Scenario): A scenario was discussed regarding managing programmers creating a mental health app: * Student Suggestion 1: Creating a rubric to divide the code and make individual parts identifiable (Accountability). * Student Suggestion 2: Offering year-end bonuses or promotions (Motivation). Note: Promotions can be competitive and reduce cohesion; flat bonuses for collective success may be better. * Student Suggestion 3: Public showcases/presentations of work. This adds a level of social facilitation pressure to perform well for the "audience." * Instructor Suggestion: Connecting the programmers to the humanitarian impact of the mental health app to increase intrinsic motivation.