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Key Influences on Conformity

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Influence of Majority Size on Conformity

The probability of an individual conforming to a group's opinion is positively correlated with the number of people in the majority, but this effect has a limit. Asch's 1955 study observed that conformity rates increased as the majority grew to seven members, but adding more people beyond that number did not further increase, and sometimes slightly decreased, conformity.

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Updated 2025-10-08

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OpenStax Psychology (2nd ed.) Textbook

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Ch.12 Social Psychology - Psychology @ OpenStax

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Introduction to Psychology @ OpenStax Course

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OpenStax Psychology (2nd ed.) Textbook

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A researcher investigates how group size influences an individual's tendency to agree with a majority's incorrect judgment on a simple perceptual task. The table below shows the percentage of participants who conformed to the incorrect majority view, based on the number of people in that majority.

Number of People in Majority Percentage of Participants Conforming
1 4%
3 31%
7 36%
12 35%

Based on the pattern in this data, what is the most accurate conclusion about the relationship between majority size and conformity?