When people see fake documentaries, they have often difficulty in telling the difference between actual and fake, From this point of view, fake documentary is a mode of cinema which can make people(spectators) feel real, which is called \'narrative presence\'. Narrative presence is a psychological state in which the virtuality of experience is unnoticed, but it is different from \'perceptual presence\' because it occurs from the reasoning process of mind not the perception process. This thesis aims to understand the mechanism of creating narrative presence in fake documentary, and it focuses on how people are affected by the narrative techniques of fake documentary.
In detail, it starts to investigate previous theoretical works that tried to explain the mechanism of creating presence in fake documentary. Among others this thesis accepts a cognitive approach and suggests theoretical model of narrative presence. In this model, narrative presence depends on the level of \'truth bias\' which occurs from the process of reasoning
Next, through the analysis of some examples, It tries to find narrative techniques which cause truth bias, and especially focuses on \'the Primacy Effect\' techniques that is worked in the opening part of narrative. It is able to be classified into three categories, \'Confession\', \'Labeling(Act of Naming)\', and \'Description(Reality-Effect)\'.