Evaluation of the Asch (1955) and Mori & Arai (2010) studies


Asch (1955)


  • Can be replicated ( Perrin and Spencer)
  • Supports the idea of conformity
  • There were high levels of control as it was a laboratory experiment which ensures that a cause and effect  relationship between variables can be established. Therefore it has a higher internal validity because there will be no extraneous variables affecting the results.


  • Lacks ecological explanation 
  • Biased sample – only white men
  • Cannot be replicated to real life situations 


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Asch (1955) - Psychological

Contributed to our Psychological understanding of conformity?

Normative Social Influence (NSI) - 

  • some participants reported that they conformed to fit in with the group linking to the idea of normative social influence and demonstrating compliance
  • Instances where people conform to 'fit in' and gain approval or avoid disapproval by others.
  • Do not want to appear foolish/stupid so we follow the groups norms.
  • Emotional process.
  • Tends to lead to Compliance.
  • The desire to be liked
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Mori & Ari (2010)


  • Female and male samples
  • Japenese students - different culture than Asch
  • Participants knew each other which is a strength because how we conform with friends and family is more relevant than how we conform with strangers


  • Since only Japanese students were used, the finds can't be generalised to everyone: one because its only one age group and two because it doesn't reflect  multiple cultures.
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Mori & Ari (2010) - Psychological

Contribute to Psychological understanding of Conformity?

Better understanding of individual differences in conformity

Reduced comfority in males could reflect the generational changes since the 1950's

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