Factors affecting bystander intervention

Introduction: Why do we help (or not)?

Imagine you are walking through a busy train station and you see someone collapse. Would you stop to help? You might think, "Of course I would!" However, psychological research shows that whether we help—and how fast we do it—depends on a lot more than just being a "good person." This is called bystander intervention.

In this chapter, we will explore the situational factors (the environment around us) and personal factors (things about us as individuals) that decide whether we step in or just keep walking.

Note: This chapter connects closely to the study by Piliavin et al. (1969), which looks at these factors in a real-world setting.

What is Bystander Intervention?

Bystander intervention is the act of a person (a bystander) helping someone who is in need or in an emergency. On the flip side, the bystander effect is the psychological phenomenon where people are less likely to help if there are other people present.

1. Situational Factors

Situational factors are things in the environment that influence our behavior. It’s not about who you are, but where you are and who is with you.

A. Diffusion of Responsibility

This is one of the most famous concepts in social influence. When there are many people around, the "responsibility" to help is spread out (diffused) among everyone.
The logic: "There are 20 other people here; surely one of them will call an ambulance."
The result: Because everyone thinks someone else will do it, often nobody does.

B. Noticing the Event and Ambiguity

In a crowded place, we often look at others to see how they are reacting. If a situation is ambiguous (unclear), we might not help because we aren't sure if it’s a real emergency.
Example: If you see a man and woman arguing, you might think it’s just a "private disagreement" and not want to interfere, even if one person needs help.

C. Cost of Helping

Before we help, we often do a quick "risk-benefit" check in our heads.
Physical cost: Will I get hurt? (e.g., Is the attacker still there?)
Psychological cost: Will I feel embarrassed if I mess up?
Time cost: Am I in a rush to get to work?
If the cost of helping is too high, we are less likely to intervene. However, there is also a cost of NOT helping, such as feeling guilty or being blamed by others.

Key Takeaway: You are more likely to get help if you are the only person around, because the responsibility rests entirely on that one bystander!

2. Personal Factors

Personal factors are the internal traits or characteristics of the bystander. This explains why, in the exact same situation, one person might help while another walks away.

A. Competence (Ability to help)

If we feel we have the skills to help, we are much more likely to step in.
Example: A trained nurse is more likely to help someone having a heart attack than someone who has no medical knowledge.
Even if there is a "diffusion of responsibility" because of a crowd, a highly competent person often feels a stronger pull to help because they know they are the best person for the job.

B. Similarity to the Victim

We are more likely to help people who we perceive as being "like us." This could be based on:
- Wearing the same football shirt.
- Being the same age or gender.
- Belonging to the same ethnic group.
When we see ourselves in the victim, we feel more empathy, which drives us to help.

C. Mood and Personality

While the syllabus focuses on the two points above, it is worth noting that our current state of mind matters. If we are in a great mood, we are generally more "pro-social" (helpful). If we have a personality that is high in empathy, we are also more likely to ignore the "costs" of helping.

Key Takeaway: If you feel capable and you relate to the person in trouble, you are much more likely to intervene.

Quick Review: Helping vs. Not Helping

To help you remember, think of this checklist of why a bystander might NOT help:

• "Someone else will do it" (Diffusion of responsibility)
• "I don't know what to do" (Lack of competence)
• "I don't know them / they aren't like me" (Lack of similarity)
• "I might get hurt or be late" (High cost of helping)

Common Exam Mistakes to Avoid

1. Confusing the terms: Don't mix up "Bystander Intervention" (helping) with "Bystander Effect" (not helping due to a crowd). Make sure you read the question carefully!

2. Forgetting "Diffusion of Responsibility": This is a high-mark keyword. If a question asks about situational factors, you must mention that more people = less individual responsibility.

3. Ignoring AO2 (Application): In the exam, you might get a story (a scenario) about a girl falling off her bike. You will be asked to "apply" your knowledge.
Bad answer: "Competence affects helping."
Good answer: "If the bystanders see the girl fall, they might not help if they lack competence, for example, if they don't know how to perform first aid on her leg."

Summary Table for Revision