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Evaluations for the Dual-Process Model
+ Normative Social Influence (NSI) is supported by Asch who found that 37% of people give the wrong
answer when the majority also give the wrong answer. This supports NSI as it shows that people will
conform in order to be accepted, even if they know that they are giving the wrong answer.
+ Informational Social Influence (ISI) is supported by Sherif who found that people conformed to the
stationary light task after looking to others who appeared to have the correct answer. This supports ISI as it
shows that people will conform when they have a desire to be right and someone around you appears to
have the correct answer.
- The dual process model does not explain why people continue to conform when the group is no longer
there. This is a weakness because the model assumes that people conform due to the presence of others yet
people still conform (e.g. even a whole year later in Sherif's experiment) even when the group is not around.
- The model also assumes that we all make a rational decision to conform whereas it could be argued that
we do so without thinking (because we are cognitive misers). As it does not take this into account, the
dual-process model could therefore be argued to be limited in terms of how well it can be applied to