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     Perception is an activity that involves a high level of cognition in interpret to sensory information . ( Solso , 2007) Our perceptions are often inaccurate . One reason is that our assumptions or expectations . We perceive things based on our expectations . So consequently the perception of failure can be caused by prejudice .
     In human life have different groups - different tribes and different - different . For example, in my class , there are people who have different backgrounds - different there are Chinese , Javanese , Sundanese , Ambon and other fields .  ambon people in because they were faced sinister and dark sometimes cause prejudice that they are evil and must be in the stay away . Things like this often happen in our daily lives . .
     The term prejudice derived from the Latin word , which means a precedent or an assessment based on the decision and previous experience . Richard E Brislin defines prejudice as an unfair attitude , deviate or are intolerant of a group of people . Although prejudice can be positive or negative but in general be negative .
Surely this prejudice affect communication , and whether the effect of prejudices on communications then? When we prejudge black people are lazy , the militaristic Japanese , the Chinese materialist, women are more stupid than men , without the support with data and facts are accurate , then our communication will not be smooth or it can jam and will continue to our perception wrong , which then others will perceive us as well or wrong .
     So from the above, I think the best way to reduce prejudice is to improve communication with them and get to know them better , though not always well and succeed in any situation. Such as in the classroom there are students who come from a variety of races to develop good relations to understand and make good friends despite their race - one different so that it can reduce or even eliminate improper prejudice .
Bibliography
Solso , R. L. ( 2007) . Cognitive Psychology . New York: McGraw .