+One strength of NSI; evidence supports it as an explanation of conformity, When Asch interviewed his participants, some said they conformed; they felt self-conscious giving the correct answer & were afraid of disapproval. When participants wrote their answers down, conformity fell to 12.5%; giving answers privately meant that there was no normative group pressure. This shows that atleast some conformity is due to a desire to not be rejected by society or the group for disagreeing with them.