網路的使用已是人們非常頻繁的日常生活行為，網路也已經成為人們獲取資訊的主要管道。近來有許多可供網友針對共同主題交換意見或分享經驗的線上知識分享系統，例如：奇摩知識（http://tw.knowledge.yahoo.com）。此類知識分享平台的運作模式是不限制任何人，允許來自各地的陌生網友在版上張貼任何問題，而之後有類似問題的網友可以透過關鍵字搜尋方式檢索並閱讀瀏覽這些以問題為索引的知識系絡。線上知識分享系統內的知識提供者（發訊者）皆是自主性的發表，也沒有任何機制可控制訊息或知識的正確與否，知識使用者（受訊者）面對訊息時似乎是難以判斷何則訊息為真，何則為誤。而本研究的目的在檢驗當受訊者在線上知識分享系統中，閱讀線上知識時，文字內容中引述他人話語會影響其對於知識本體的相信程度；以及當引述的對象是名人或專家，其對訊息可信度的影響皆是否大於引述非知名人士。本研究執行實驗設計，瞭解到當知識內容中有使用引述的訊息會比無使用引述用的訊息獲得收訊者較高的訊息可信度評斷；並且，所引述的對象為名人與專家時，也會獲得高於引述非知名人士的訊息可信度。
Use the Internet is everyday life behavior of people. The Internet has become the main when people get the message. Recently there are many online knowledge sharing system that can supply the Internet friend with exchange opinion or share in experience. For example, the yahoo’s knowledge sharing system. The knowledge sharing system that the mode of operation is not restricted to any person. It allows cyber friend from around the world to paste up the any message on forum. After the cyber friend had had some similar problems that they could search by importing keyword and read these problems.The knowledge sharing system’s provider (Sender) published the articles by unurged. There's no mechanism for controlling the correctness of the messages.The knowledge sharing system’s user (Recipient) seems to determine the accuracy of the information when they faces the messages. The purpose of this study when recipient read online knowledge in the knowledge sharing system, quoted others words of the text affects to believe that the level of the knowledge. And when quoting the celebrity or expert, if the message credibility’s effect is greater than quote non-celebrity. This study administered design and analysis of experiment, realizing that use the quote’s message in content of the knowledge is more getting high message credibility for the receiver than the non-quote’s message. And when quoting the celebrity and expert can get more high message credibility than quote non-celebrity.
