Social Impact Theory

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Who proposed this theory?
Latane (1981)
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Briefly describe the theory
People are influenced by others; people can persuade, threaten or support us (Sources-Impacter), which effects how we act (The Target)
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What are the 3 factors that effect SI?
Strength (The level of authority) Immediacy (Proximity of the source to target) Number (the amount of sources to targets)
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What is the divisional effect?
The more targets to source divides the ability for the source to persuade per person
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What is the multiplication effect?
Strength, immediacy and number only has a multiplication effect up to a certain point
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Supporting evidence to the theory
Milgrams variation study (Experiment 7) where telephonic instructions were given, the telephone acts as a buffer (Immediacy), also one of his other variations, they added a peer who disobeyed and obedience dropped to 10%
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Other Explanations
The theory doesn't address individual differences, so it could be a factor of personality and not social impact whether we conform or not
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Usefulness
Limited application, doesn't explain what would happed in targets and source had equal SIN, e.g. football games with opposing teams
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Testability
Easy to test, can observe participant behaviour which makes it quantifiable
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Card 2

Front

Briefly describe the theory

Back

People are influenced by others; people can persuade, threaten or support us (Sources-Impacter), which effects how we act (The Target)

Card 3

Front

What are the 3 factors that effect SI?

Back

Preview of the front of card 3

Card 4

Front

What is the divisional effect?

Back

Preview of the front of card 4

Card 5

Front

What is the multiplication effect?

Back

Preview of the front of card 5
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