Pearson Edexcel · GCSE · Psychology

    Course version: 1PS0 · Version from Sept 2017

    Understand the behaviour of crowds and the individuals within them and the…

    Full specification wording

    Social influence: 5.1.5 Understand the behaviour of crowds and the individuals within them and the effect of collective behaviour, including a. pro- and anti-social behaviour

    Collective behaviour occurs when individuals act as part of a crowd, often behaving differently than they would alone.

    Checked against the Pearson Edexcel 1PS0 specification (opens in a new tab) on .

    • Point 5 of 6
    • 4 key terms

    Study notes

    From the checked teaching notes for this specification point.

    The idea

    Collective behaviour occurs when individuals act as part of a crowd, often behaving differently than they would alone. This shift is frequently driven by deindividuation, where anonymity reduces personal responsibility. The effect of collective behaviour manifests in two contrasting ways. Anti-social behaviour involves actions that harm others or disrupt society, such as rioting or vandalism. Conversely, crowds can also exhibit pro-social behaviour, which benefits others and society. Examples include peaceful demonstrations or bystanders collectively lifting a vehicle to save a trapped person. Understanding these dynamics explains why individuals in crowds conform to the group's prevailing mood, whether constructive or destructive.

    What earns the marks

    • Define collective behaviour as the actions of a group of people who have gathered together for a specific purpose.
    • Identify deindividuation as a key psychological mechanism that alters individual behaviour within a crowd.
    • Recognise examples of anti-social collective behaviour, such as looting or aggressive mob actions.
    • Recognise examples of pro-social collective behaviour, such as peaceful campaigning or coordinated rescue efforts.

    Common mistakes and how to put them right

    • Assuming crowd behaviour is always negative.

      Put it right by recognising that crowds can engage in pro-social actions like peaceful protests or charity runs.

    • Confusing deindividuation with conformity.

      Put it right by defining deindividuation as a loss of personal identity and responsibility, whereas conformity is yielding to group pressure.

    • Believing individuals in a crowd completely lose their free will.

      Put it right by understanding that individuals are influenced by the crowd but still make choices, often guided by the group's emergent norms.

    Exam tips

    • When asked for examples of collective behaviour, ensure you can provide both a pro-social and an anti-social example.
    • Use the term 'deindividuation' accurately to explain why individuals might act out of character when in a large group.
    • Read scenario questions carefully to determine whether the crowd's behaviour is benefiting society (pro-social) or causing harm (anti-social).

    Try the lesson

    The start of the Social influence: 5.1.5 Understand the behaviour of crowds and the individuals within them and the effect of collective behaviour, including a. pro- and anti-social behaviour lesson, made from checked teaching notes for this specification point.

    Have a go first

    Which of the following is an example of anti-social collective behaviour?

    Listen

    Collective behaviour occurs when individuals act as part of a crowd, often behaving differently than they would alone. This shift is frequently driven by deindividuation, where anonymity reduces personal responsibility. The effect of collective behaviour manifests in two contrasting ways. Anti-social behaviour involves actions that harm others or disrupt society, such as rioting or vandalism. Conversely, crowds can also exhibit pro-social behaviour, which benefits others and society. Examples include peaceful demonstrations or bystanders collectively lifting a vehicle to save a trapped person. Understanding these dynamics explains why individuals in crowds conform to the group's prevailing mood, whether constructive or destructive. A strong answer earns marks for these points. Define collective behaviour as the actions of a group of people who have gathered together for a specific purpose. Identify deindividuation as a key psychological mechanism that alters individual behaviour within a crowd. Recognise examples of anti-social collective behaviour, such as looting or aggressive mob actions. Recognise examples of pro-social collective behaviour, such as peaceful campaigning or coordinated rescue efforts. A common slip: Assuming crowd behaviour is always negative. Instead, recognising that crowds can engage in pro-social actions like peaceful protests or charity runs. Exam tip: When asked for examples of collective behaviour, ensure you can provide both a pro-social and an anti-social example.

    See it

    A top-down flowchart. The top node reads 'Collective behaviour: individuals act as part of a crowd' and points down to 'Deindividuation: anonymity reduces personal responsibility', which points down to 'Individuals conform to the group's prevailing mood'. This node splits into two branches. The left branch is 'Anti-social collective behaviour', which leads to two nodes: 'Rioting or vandalism' and 'Looting or aggressive mob actions'. The right branch is 'Pro-social collective behaviour', which leads to two nodes: 'Peaceful demonstrations' and 'Bystanders collectively lifting a vehicle to save a trapped person'.
    It shows how collective behaviour and deindividuation lead individuals in a crowd to conform to the group's mood, which can result in either anti-social or pro-social behaviour.

    Key words

    Say what each word means before you turn the card.

    Deindividuation

    Try answering aloud or in your head before turning the card.

    Pro-social behaviour

    Try answering aloud or in your head before turning the card.

    Anti-social behaviour

    Try answering aloud or in your head before turning the card.

    Collective behaviour

    Try answering aloud or in your head before turning the card.

    See every definition
    Deindividuation
    A key psychological mechanism where anonymity reduces personal responsibility and causes a loss of personal identity, altering individual behaviour within a crowd.
    Pro-social behaviour
    Actions that benefit others and society, such as peaceful demonstrations or bystanders collectively lifting a vehicle to save a trapped person.
    Anti-social behaviour
    Actions that harm others or disrupt society, such as rioting, vandalism, looting or aggressive mob actions.
    Collective behaviour
    The actions of a group of people who have gathered together for a specific purpose, often behaving differently than they would alone.

    Label the diagram

    Some boxes have lost their names. Pick the right name for each number.

    The diagram again, with 3 boxes numbered instead of named. A top-down flowchart. The top node reads 'Collective behaviour: individuals act as part of a crowd' and points down to 'Deindividuation: anonymity reduces personal responsibility', which points down to 'Individuals conform to the group's prevailing mood'. This node splits into two branches. The left branch is 'Anti-social collective behaviour', which leads to two nodes: 'Rioting or vandalism' and 'Looting or aggressive mob actions'. The right branch is 'Pro-social collective behaviour', which leads to two nodes: 'Peaceful demonstrations' and 'Bystanders collectively lifting a vehicle to save a trapped person'.
    • 1Box 1

    • 2Box 2

    • 3Box 3

    0 of 3 labelled

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