Document Type : Original Article

Abstract

This article studied about trust and credibility to the internal and foreign media among of Tehran citizens and will study influence of social developments on this issue. In this paper base on Stuart Hall's theoretical classification and Anderson's theory about source credibility, the authors reach to the conclusion that the position of mutuality about internal media among Tehran citizens has grown and Public trust in hegemonic position has been significantly reduced. On the other han Impact d, this paper expression that the validity of media sources in this study decrease as well as the value of information.
Other results: Increased the tendency of citizens to the satellite channels and lack of approach to the foreign radios in past 5 years that this issue has analyzed in negative attitudes background compare to the visual attractiveness of satellite programs. More than 90 percent of people follow-up news if they believe the news is correctness and Real. The 68/8 percent of people, who changes their attitude more than usual, used satellite products.
The authors are worry about loss of internal audience that Impact to national interests.

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