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| Processes that happen within a group |
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| Processes that happen between groups of people |
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| When people do better on a task in the presence of others than when they are alone |
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| When people do worse on a task in the presence of other than when they are alone |
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| A group-produced reduction in individual output on easy tasks where contributions are pooled |
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| A model which describes people’s motivation to exert effort in group tasks as depending on whether they believe their distinct efforts will make a difference in the group’s success, and they’ll experience positive outcomes. |
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| The notion that if a project is important to you, you may work even harder to compensate for the poor performance or social loafing of others. |
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| When the initial tendencies of group members become more extreme following group discussion. |
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| A process by which groups tend to make riskier decisions than individuals would make alone. |
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| A group decision-making style that is characterized by an excessive tendency among group members to seek concurrence, consensus, and unanimity, as opposed to making the best decision. |
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| - The belief that one’s cultural values are shared by others |
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| Situations where if all individuals make self-interested choices the result will be the worst possible outcome for everyone |
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| A social dilemma in which each person can take as much as he or she wants of a common resource, but if everyone takes as much as they want, the resource will eventually be depleted. |
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| - A type of social dilemma where each person must decide what to contribute to a common pool of resources that will not exist unless people contribute to it. |
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| The situation in which two people may choose to either cooperate with each other or compete. |
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| A strategy in a prisoner’s dilemma situation whereby one starts with cooperation, and then does whatever one’s partner does on each subsequent interaction (e.g . cooperate after cooperation and compete after competition from one’s partner) |
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