| Course | PSY 400 Social Psychology (PSY/400) |
|---|---|
| Week | 4 |
| Paper type | Helping and attraction paper |
| Length | about 1,051 words, 4 double-spaced pages plus title page and references |
| Format | APA 7 student paper |
| School | University of Phoenix |
| Program | BS in Psychology |
| Updated | October 2026 |
Free sample paper for PSY 400 Week 4
A Collapse on the Light Rail: Bystander Helping and the Friendship That Followed
[Student Name]
University of Phoenix
PSY/400: Social Psychology
Week 4 Assignment
[Instructor Name]
[Date]
The people and events are composites written for a model paper; research findings come from the sources listed.
Social psychology studies the forces that pull people toward one another, both in moments of crisis and in everyday life. This paper applies research on helping and attraction to one event on a Phoenix light rail train and the relationship that grew from it.
The Event
On a weekday morning, a crowded light rail car heads into downtown Phoenix, Arizona. A man in his seventies, standing near the door, sways and slides to the floor. About twenty passengers see him. Several glance at one another; a few look at their phones. For nearly a minute, no one moves. Then Dev, a twenty-six-year-old nursing student, pushes forward, kneels beside the man, checks his breathing and points at a woman nearby: "You in the green jacket, call 911." Carla, a forty-year-old home health aide, makes the call and stays on the line, relaying instructions. At the next stop, transit staff and paramedics arrive. The man recovers in the hospital.
The Steps of Bystander Intervention
Help requires a chain of small decisions: seeing that something happened, reading it as a crisis, feeling that acting is one's own job, knowing what to do and then doing it. Each step can fail. Some passengers did not notice, absorbed in phones. Others noticed but were unsure: was the man ill, drunk or simply sitting down? Looking around, they saw others staying calm and concluded nothing was wrong, a pattern called pluralistic ignorance. Even those who recognized an emergency could assume someone else would act.
Diffusion of Responsibility
Darley and Latané (1968) had college students talk over an intercom system about adjusting to college, believing they were in a discussion with one, two or five other students. Partway through, a voice that was actually a recording began to sound as if its speaker were having a seizure. Alone with the victim, as far as they knew, most participants left the booth to get help quickly. Believing four other students were also listening, far fewer reported the emergency before the seizure ended, and those who did took longer. The researchers concluded that the presence of others diffused responsibility, so each person felt less obliged to act.
The minute of stillness on the train fits this pattern. With twenty passengers, each could assume another, perhaps someone with medical training, would step in.
When the Effect Weakens
Fischer et al. (2011) combined over one hundred studies of bystander intervention and confirmed that the presence of others reduces helping overall. The effect was weaker, however, in emergencies perceived as clearly dangerous, perhaps because danger is recognized faster and because other bystanders can be seen as potential partners in helping. Once Dev acted, the situation changed from ambiguous to clearly serious, and several passengers moved to clear space and offered water.
Why Dev and Carla Acted
Dev's training made the emergency easy to recognize and gave him the skills to act, overcoming the steps where others stalled. His direct request to Carla broke the diffusion of responsibility; once singled out, she had clear personal responsibility. Her work as a home health aide made her comfortable with medical instructions. Motives for helping may include empathy for the man's distress, a sense of professional duty and a desire to relieve one's own discomfort at watching suffering, egoistic and altruistic motives that often operate together.
No one on the car was told to help until Dev pointed at a green jacket; after that, Carla was not a bystander anymore.
From Strangers to Friends
After the paramedics left, Dev and Carla talked. They discovered they rode the same train every weekday, she to her clients' homes and he to his clinical rotation. Over the next weeks, they began sitting together.
Several principles of attraction explain this. Proximity matters because people who are physically near each other interact more often. Repeated exposure to someone tends to increase liking. A shared intense experience creates a bond and something to talk about. Similarity also played a role.
Similarity and Attraction
Montoya et al. (2008) combined hundreds of studies on similarity and attraction and found that both actual similarity and perceived similarity predicted attraction in short interactions, but in existing relationships, perceived similarity predicted attraction more strongly than actual similarity did. People like others they believe are like them, a belief that grows as they get to know each other.
Dev and Carla differ in age and background, but they quickly perceived themselves as similar: both work in caregiving, both commute early and both value acting in a crisis. Their perceived similarity fed their growing friendship.
Keeping the Friendship Going
Attraction starts relationships, but other processes keep them going. Over the following months, Dev and Carla began trading favors: she shared tips on caring for older patients at home, and he helped her study for a certification exam. Relationships tend to last when both people feel the give and take is roughly fair and when each responds to the other's needs. Their friendship also gained from regular, low-effort contact, the same morning train, which spared them the planning that often lets new friendships fade.
Why Some Passengers Did Not Help
It would be easy to call the other riders uncaring. Interviews after similar events often show that bystanders felt concern but were unsure what was happening, worried about doing the wrong thing or assumed someone better qualified was already acting. Some had headphones on and noticed late. These are failures of the situation more than of character.
Lessons for Transit Riders
The research suggests practical steps. Transit agencies can post signs teaching riders to recognize emergencies and to single out a specific person to call for help. Brief bystander training, sometimes offered by community organizations, teaches people the steps of intervention and how to overcome the tendency to wait. Knowing about diffusion of responsibility itself can make people more likely to act.
Conclusion
The minute of stillness on the train reflects the situational forces that keep groups from helping: ambiguity, pluralistic ignorance and diffused responsibility. Dev's knowledge and his direct request broke those forces, and the danger became clear enough for others to join in. The friendship that followed grew from proximity, repeated contact, a shared crisis and perceived similarity, showing how situations shape both helping and liking.
References
Darley, J. M., & Latané, B. (1968). Bystander intervention in emergencies: Diffusion of responsibility. Journal of Personality and Social Psychology, 8(4, Pt. 1), 377-383. https://doi.org/10.1037/h0025589
Fischer, P., Krueger, J. I., Greitemeyer, T., Vogrincic, C., Kastenmüller, A., Frey, D., Heene, M., Wicher, M., & Kainbacher, M. (2011). The bystander-effect: A meta-analytic review on bystander intervention in dangerous and non-dangerous emergencies. Psychological Bulletin, 137(4), 517-537. https://doi.org/10.1037/a0023304
Montoya, R. M., Horton, R. S., & Kirchner, J. (2008). Is actual similarity necessary for attraction? A meta-analysis of actual and perceived similarity. Journal of Social and Personal Relationships, 25(6), 889-922. https://doi.org/10.1177/0265407508096700
What the PSY 400 Week 4 instructions ask
Week 4 papers in PSY 400 typically examine helping behavior, attraction and relationships. Typical requirements include describing the steps of bystander intervention, explaining diffusion of responsibility and pluralistic ignorance, comparing egoistic and altruistic motives for helping, describing factors in attraction such as proximity, mere exposure, similarity and physical attractiveness and discussing how relationships develop and are maintained. Some versions ask students to analyze a news event involving bystanders or a relationship from their own life. Describe research accurately, apply concepts to specific moments and note how situational factors shape both helping and liking. Cite the textbook and published studies in APA format, and connect each finding to a specific moment in your example.
How this PSY 400 Week 4 example is built
Our worked paper follows the moment when a man in his seventies slumps from his seat on a crowded train. For nearly a minute, about twenty passengers look at one another. Then Dev, a nursing student, kneels beside the man, points at Carla and says, "You in the green jacket, call 911." The classic experiment on diffusion of responsibility explains the delay, and a meta-analysis shows that the bystander effect weakens in clearly dangerous emergencies. Research on similarity explains why Dev and Carla, who discover they ride the same train daily and share a background in caregiving, became friends. The paper ends with lessons for training riders.
PSY 400 Week 4 grading rubric: where the points go
In grading this week, instructors check that the stages of bystander intervention are described correctly, that diffusion of responsibility is distinguished from pluralistic ignorance and that attraction research is applied to specific relationships. Credit goes to accurate, detailed description of classic studies and their procedures, to recent meta-analytic evidence showing when effects weaken and to practical applications such as training. Clear headings, a step-by-step walk through the emergency and APA formatting are expected. Fair-minded papers also avoid blaming bystanders as uncaring, since the research shows that ordinary people in groups often fail to act for situational reasons rather than indifference.
PSY 400 Week 4 help: mistakes to avoid
A common error is describing the bystander effect as people not caring, when research shows that bystanders are often uncertain and look to others for cues. Another is stating that larger groups always reduce helping, ignoring evidence that the effect shrinks in clearly dangerous situations. Students also confuse proximity with similarity in attraction, or list attraction factors without applying them to a real relationship. Some papers misdescribe the classic studies or omit how the steps of intervention can be taught. Walk through each step of intervention in your case, explain why each person acted or did not and link attraction factors to specific moments. Name the step where each bystander stalled. A tutor can help you link each study to a specific scene from the event.
Related PSY 400 sample papers
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- PSY 400 Week 2: Attitudes and Persuasion
- PSY 400 Week 3: Conformity, Obedience, Influence
- PSY 400 Week 5: Aggression, Prejudice and Groups
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PSY 400 Week 4 questions, answered
What does PSY 400 Week 4 usually cover?
It usually covers bystander intervention, motives for helping, attraction factors such as proximity and similarity and close relationships.
Where can I find a free PSY 400 Week 4 sample paper?
The PSY 400 Week 4 paper on helping during a light rail emergency and the friendship that followed is above, free.
What is diffusion of responsibility?
The tendency for each person in a group to feel less personal responsibility to act because others are present.
Does the bystander effect always occur?
No; meta-analytic evidence shows it is weaker in clearly dangerous emergencies, possibly because danger is easier to recognize.
Why does similarity increase attraction?
Similar others validate our views and make interaction easier; perceived similarity is especially strong in predicting liking.
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