内容预警对说服的影响

There are still some controversies surrounding the effects of forewarning of message content on persuasion and the mediating mechanism operating when persons are forwarned of message content on high involvement. Two experiments were designed to investigate these questionable points. It was found: 1. The effects of a warning on persuasion depends on the extent of involvement. Subjects who were highly involved in the topic showed resistance to persuasion. 2. However, forewarning have different effects on persuasion in the low-involvement condition according to some sub-variables (such as commitment, self -presentation motive, etc.). 3. The mechanism mediating the resistance to persuasion conveyed by a warning concerning the content of an impending discrepand communication on a highly involving topic is very complicated. The experiments indicated that anticipatory counterargument is a typical cognitive response, besides, source degoration and "tubborn refusal to give in" are also usually found.