隨著網路通訊與行動科技的普及，即時通訊已成為職場中重要的溝通管道。儘管即時通訊為工作帶來便利，卻也引發即時通訊疲勞的現象。現有研究主要聚焦於社群媒體疲勞及下班後使用即時通訊軟體所導致的工作與家庭衝突，對即時通訊疲勞的探討相對有限。本研究旨在運用壓力源-壓力反應-結果（Stressor-Strain-Outcome, SSO）模型，並結合科技壓力觀點，探討即時通訊疲勞之成因與後果。
本研究針對職場中會使用即時通訊進行聯繫的工作者，透過線上問卷調查，總計回收有效樣本數390份，並應用偏最小平方法之結構方程模式來檢驗假說。研究結果顯示，即時通訊的資訊模糊性會讓使用者感到資訊超載，即時通訊的無所不在特性亦會造成科技入侵個人生活的問題。資訊超載、科技超載與科技入侵這三個壓力源顯著影響使用者的即時通訊疲勞。當使用者出現即時通訊疲勞時，他們會明顯感受到身心俱疲，進而降低工作滿意度並增加安靜離職意願。
本研究擴展即時通訊疲勞之模型，將即時通訊之科技特性作為壓力源的前置因素，並納入科技壓力及職場相關變數，以更全面地瞭解工作上即時通訊疲勞之影響因素及效應。最後，依本研究結果提出研究意涵，盼企業能強化對即時通訊使用的管理，以維護員工身心健康，並提出建議供後續研究參考。

With the widespread adoption of internet communication and mobile technology, instant messaging has become an important communication channel in the workplace. Although instant messaging brings convenience to work, it also leads to the phenomenon of instant messaging fatigue. Existing research mainly focuses on social media fatigue and the work-family conflict caused by using instant messaging software after work, while the discussion on instant messaging fatigue is relatively limited. This study aims to explore the causes and consequences of instant messaging fatigue by utilizing the Stressor-Strain-Outcome (SSO) model and incorporating the perspective of technostress.
This study conducted a survey among workers who use communication software in the workplace through an online questionnaire, collecting a total of 390 valid samples. The hypotheses were tested using the Partial Least Squares Structural Equation Modeling (PLS-SEM) approach. The results show that the ambiguity of information in instant messaging leads to information overload, and the ubiquitous nature of instant messaging also causes technological intrusion into personal life. Information overload, technological overload, and technological intrusion are three stressors that significantly affect users' instant messaging fatigue. When users experience instant messaging fatigue, they clearly feel burnout, which in turn reduces job satisfaction and increases the intention to quietly quit.
This study expands the model of instant messaging fatigue by considering the technological characteristics of instant messaging as antecedent factors of stressors, and includes technostress and workplace-related variables to gain a more comprehensive understanding of the influencing factors and effects of instant messaging fatigue at work. Finally, this study proposes managerial implications based on the conclusions, hoping that enterprises can strengthen the management of instant messaging usage to maintain employees' physical and mental health, and provides directions for future research.

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 1
第二節 研究動機 2
第三節 研究目的 2
第四節 研究內容與方法 3
第五節 研究範圍與對象 4
第六節 研究流程與論文架構 4
第二章 文獻探討 6
第一節 即時通訊 6
第二節 工作與科技壓力源 11
第三節 即時通訊疲勞 13
第四節 工作上即時通訊疲勞之後續影響效應 14
第五節 即時通訊對職場與疲勞影響之相關研究 15
第六節 研究理論 18
第三章 研究方法 20
第一節 研究架構 20
第二節 研究假說 21
第三節 研究構面之操作性定義 25
第四節 問卷設計與資料蒐集 26
第五節 資料分析方法與工具 30
第四章 研究結果 32
第一節 問卷回收概況與樣本結構 32
第二節 描述性統計分析 35
第三節 信度及效度分析 41
第四節 共線性檢定 50
第五節 共同方法偏誤 51
第六節 結構模型評鑑與假說驗證 55
第五章 結論與建議 63
第一節 研究結論 63
第二節 研究意涵 65
第三節 研究限制 67
第四節 未來研究方向 67
參考文獻 69
附錄 研究問卷 78

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