現今社會中，因網路發展以及行動裝置的普及，社群網路已經成為人們日常生活中不可或缺的一部份，但是部分的社群網站使用者開始對於使用社群網站這件事情感到壓力、厭煩，所以逐漸減少使用社群網站頻率，或者甚至是放棄繼續使用社群網站。
因此，本研究從此方面著手，探討什麼原因會讓社群網站使用者在使用的過程中產生負面的感受，而這樣負面感受是否會影響使用者在線上生活的幸福感，進而導致使用者放棄繼續使用社群網站。除此之外，本研究自行設立代理人功能，此項機制能夠幫助使用者分析過濾訊息、依照朋友重要程度排序資訊或者對朋友顯示資訊，並且進一部探討認知代理人有用性對於負面情緒的干擾效果是否成立。
本研究採用線上問卷，而最後總共回收339份有效問卷，結果顯示社群使用壓力對於精疲力竭感有正向顯著影響；精疲力竭感對於線上社會幸福感有負向顯著影響；線上社會幸福感對於持續使用意圖有正向顯著影響；而認知代理人有用性則是在本研究中證實並無顯著調節效果。

Due to the expending of the Internet and the popularity of the mobile devices, social network sites (SNS) recently play an important role in our life. Although there are many people using SNS nowadays, some of them have begun to be tired of using SNS. Therefore, they gradually reduce the frequency of using SNS, or even stop using SNS.
Hence, this research is based on this phenomenon, and tries to investigate the factors that will result in users' negative feelings when they use it. And we want to find out whether the negative feelings will influence users’ well-being or not. Moreover, this study also create a new fictitious function called agent, and this function can automatically filter spam, array friends’ information and display our messages according to the friends’ priority. We want to investigate whether “perceived usefulness of agent” will have moderating effect on users’ negative feelings to well-being.
Finally, this research collected 339 effective questionnaires. The results show that social network sites stressor has positive effect on exhaustion; exhaustion has negative impact on online social well-being; online social well-being has positive impact on continuance intension; “perceived usefulness of agent” has no moderating effect on SNS-stressor to exhaustion as well as exhaustion to online social well-being.

論文審定書 i
摘要 ii
Abstract iii
目錄 iv
圖次 vi
表次 vii
第一章 緒論 1
第一節 研究背景與動機 1
第二節 研究目的 4
第三節 研究問題 4
第四節 研究流程 5
第二章 文獻探討 6
第一節 社群使用壓力 6
第二節 代理人 13
第三節 精疲力竭感 13
第四節 線上社會幸福感 15
第三章 研究方法 18
第一節 研究模型 18
第二節 研究假說 19
第三節 操作型定義與問項 21
第四節 研究設計 31
第四章 資料分析 33
第一節 樣本基本資料分析 33
第二節 結構方程式模型 36
第五章 結論與建議 51
第一節 研究結果與討論 51
第二節 理論與實務意涵 53
第三節 研究限制與未來研究方向 54
第六章 參考文獻 55
【附錄】 正式問卷 64

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