本研究旨在瞭解國中生道德脫離與社會同理心之現況，國中生的道德脫離、社會同理心與網路霸凌旁觀者行為傾向之間的關係，以及國中生的道德脫離與社會同理心對於網路霸凌旁觀者行為傾向之預測作用。本研究採用自陳問卷調查法，選取台南市就讀國民中學與附設中學之516名國中生為研究對象，並以描述統計分析、相依樣本t檢定、皮爾森積差相關以及多元迴歸分析等統計方法進行資料分析，主要研究結果發現：受霸凌者為旁觀者喜歡的人時，國中生的道德脫離愈高，社會同理心愈低，則旁觀者的參與網路霸凌行為也愈高。國中生的社會同理心愈低可有效預測旁觀者之保護行為。局外者的行為愈劇與社會同理心愈高有關。在受霸凌者為旁觀者討厭的人時，國中生的道德脫離愈高與參與者行為有關。而道德脫離愈低，則社會同理心愈高，傾向成為保護者。局外者行為愈劇則道德脫離愈高。本研究依據結果進行討論，提供教學實務現場與未來網路霸凌研究之建議。

The main purposes of this research were to understand the impact of moral disengagement and social empathy of behavioral intentions as cyberbullying bystander of junior high school students, and to investigate the difference of behavioral intentions as cyberbullying bystander from the relationship of bystanders and victims: the victim is who I like and who I dislike, and to investigate the relationships among moral disengagement, social empathy, and behavioral intentions as cyberbullying bystander of junior high students, and to predict junior high students’ intentions as cyberbullying bystander by moral disengagement and social empathy. A self-reported data was conducted with 516 junior high school students in Tainan. The data obtained from the samples were analyzed by descriptive statistics analysis, t-test, Pearson’s product-moment correlation, and multiple regression analysis. The results indicated that when the victim was who I liked, junior high school students who had higher level of moral disengagement and lower level of social empathy were more likely to join in cyberbullying as perpetrators. Due to higher levels of social empathy, junior high school students were more likely to help the victim. Outsider was related to lower levels of social empathy. When the victim was who I disliked, junior high school students who had higher level of moral disengagement were more likely to join in cyberbullying as perpetrators. Defender was related to lower level of moral disengagement and higher level of social empathy. Outsider was related to lower level of moral disengagement. The implications of this research on cyberbullying are discussed.

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