智慧型手機與行動通訊APP下載率已成為普遍的趨勢，其中在社交類的行動通訊APP中又以LINE的使用普及率位居領先，即時通訊軟體對於社交互動焦慮傾向的人能提供一個避免面對面社交互動的私密空間，免去人際交往的尷尬、不安、困擾，線上溝通互動有助於社交互動焦慮傾向的人發展與維持人際關係。本研究目的為探討新互動科技LINE的使用行為對於社交互動焦慮傾向的人，在建立與維持友誼關係上，是否具有中介效果存在，以做為日後研究之建議與參考依據。

本研究使用量化統計方法，以問卷調查法進行資料收集，採取便利抽樣，以在職人士與大學生為研究樣本，實際回收617份有效問卷。研究工具分別為「LINE使用者背景變項與基本使用習慣」、「LINE使用行為量表」、「社交互動焦慮量表」、「友誼關係量表」。為驗證不同性別與年齡層的使用者在LINE使用行為與社交互動焦慮上的差異性，採取獨立樣本T檢定與單因子變異數分析，而LINE使用行為的中介效果檢驗，則使用線性迴歸與多元迴歸的方式，進行資料處理與分析。

研究結論如下：1.性別與LINE使用行為中的「情感表達」、「即時互動」行為呈現顯著差異。2.年齡與LINE使用行為中的「即時互動」行為呈現顯著差異。3.不同年齡層的使用者在社交互動焦慮上呈現顯著差異。4.社交互動焦慮正向影響LINE的「操控參與」、「情感表達」、「即時互動」使用行為，而LINE使用行為也正向影響友誼關係。5.在加入LINE使用行為做為中介變項後，證實了LINE的使用行為對於社交互動焦慮傾向與友誼關係之間具有完全中介效果存在。

Smart phones and the download of mobile communication apps have become popular trends. In particular the download of LINE takes the lead in social networking apps. Foreign studies reveal that instant messaging softwares offer a private space that avoids face-to-face social interaction for people who have social interaction anxiety. Those softwares can eliminate the awkwardness, agitation and disturbance in interpersonal relationships, and the online communication becomes helpful for people with the social interaction anxiety to develop and maintain interpersonal connections.
The purpose of the study is to discuss whether there is a media effect of LINE uses on people with social interaction anxiety in terms of establishing and maintaining friendship between people. Such study can be used as the suggestion and reference for future studies.

This research uses quantitative approaches by questionnaires of In-service people and college students in Taiwan. Using convenience sampling, this study collected 617 valid samples from the respondents. The measure tools used in this study include “LINE user’s background variables and habits Questionnaire”, “LINE Uses Scale”, “Social Interaction Anxiety Scale”, and “Friendship Scale”. To verify the differences between gender and age of the user on the LINE uses and social interaction anxiety, the results of survey were analyzed by Independent-Samples t Test and one-way ANOVA. To examine the mediation effects of LINE uses were analyzed by simple regression analysis and multiple regression analysis.

The results of the study are as follows: 1. There is a significant difference between genders in the “emotion expression” and “instant interaction” in LINE uses. 2. A significant difference between ages has also been found in the “instant interaction” in LINE uses.3. It is found that the influence of age and social interaction anxiety is pronounced. 4. Studies justify that social interaction anxiety positively affects the “manipulative participation,”“emotion expression” and “instant interaction” in LINE uses. On the other hand, LINE uses also positively affect the friendship development between people. 5. Using LINE as the mediation variable, the result supports that the Line uses has complete mediation effect on the connection of social interaction anxiety and friendship.

參考文獻
一、中文文獻

丘忠融、李紋鋒譯，Bakardjieva著（2008）。《網路社會與日常生活》。臺北：韋伯。（原著Bakardjieva, M. [2005]. Internet society: The internet in everyday life. London: Sage.）。
鄭明萱譯，McLuhan著（2006）。《認識媒體：人的延伸》。臺北：貓頭鷹。（原著 McLuhan, M. [1964]. Understanding media: The extensions of man. New York: McGraw-Hill.）。
邱皓政（2011）。《量化研究與統計分析（第五版）》。臺北：五南。
周書暉、法諾昕（2011）。〈iPhone手機使用者經驗研究〉。中華傳播學會。線上檢索日期：2012年12月28日，取自：http://ccs.nccu.edu.tw/history_paper_
content.php?P_ID=1337&P_YEAR=2011
臺灣網路資訊中心TWNIC（2012年7月）。〈臺灣寬頻網路使用調查報告〉。線上檢索日期：2012年12月25日，取自：http://www.twnic.net.tw/NEWS4/119.pdf
國際數據資訊IDC（2012年6月）。〈2012年第一季臺灣手機市場–智慧型手機再下一城，突破七成市佔〉。線上檢索日期：2012年12月25日，取自：http://www. idc.com.tw/about/399.html
創市際市場研究顧問公司（2012年7月）。〈LINE商機無限，台灣用戶捧場〉。線上檢索日期：2012年12月15日，取自：http://www.insightxplorer.com/news/ news_07_05_12.html
創市際市場研究顧問公司（2013年3月）。〈創市際ARO公佈台灣首份智慧型手機使用行為測量報告〉。線上檢索日期：2013年10月25日，取自：http://www. insightxplorer. com/news/news_03_23_13.html
馮昭（2012年2月）。〈下載app遊，7成只想免費〉。中央社。線上檢索日期：2012年12月3日，取自：http://tw.news.yahoo.com/%E4%B8%8B%E8%BC%89 app%E9%81%8A%E6%88%B2-7%E6%88%90%E5%8F%AA%E6%83%B3%E5%85%8D%E8%B2%BB-051110604.htmlhttp://tw.news.yahoo.com/%E4%B8%8B%E8%BC%89app%E9%81%8A%E6%88%B2-7%E6%88%90%E5%8F%AA%E6%83%B3%E5%85%8D%E8%B2%BB-051110604.html
資策會FIND（2012年10月）。〈2012年台灣無線與行動網路上網應用調查〉。線上檢索日期：2012年10月3日。取自：http://www.find.org.tw/find/home.aspx? page =many&id=335
資策會FIND（2011年5月）。〈2011年台灣行動應用軟體市場發展最新概況〉。線上檢索日期：2012年12月20日，取自：http://www.find.org.tw/find/ home.aspx? page =many&id=286
関根健介（2012年8月）。〈LINE毎日利用しているユーザー 10代・スマートフォンから。Instagram 週に3~1回程度の利用頻度。Pinterest PCからの利用が7割弱〉。In The Looop。線上檢索日期：2012年12月20日，取自：http://media.looops.net/sekine/2012/08/15/ line_201208/
黛博拉（2013年2月）。〈分家〉。INSDIE。線上檢索日期：2013年10月20日，取自：http://www.inside.com.tw/2013/02/19/partition
顏理謙（2013年11月）。〈2011年台灣行動應用軟體市場發展最新概況LINE 全球用戶數突破 3 億！從圖表看 LINE 成長軌跡〉。數位時代。線上檢索日期：2013年10月20日，取自：http://www.bnext.com.tw/article/view/id/30185

二、英文文獻

Amies, P. L., Gelder, M. G., & Shaw, P. M. (1983). Social phobia: A comparative clinical study. British Journal of Psychiatry, 142, 174-179.
Avrahami, D., & Hudson, S. (2006). Responsiveness in instant messaging: predictive models supporting inter-personal communication. In Proceedings of the SIGCHI Conference on Human Factors in Computing Systems, 731-740.
Baron, R. M., & Kenny, D. A. (1986). The moderator-mediator variable distinction in social psychological research: Conceptual, strategic, and statistical considerations. Journal of Personality and Social Psychology, 51, 1173-1182.
Baumeister, R. F., & Leary, M. R. (1995). The self. The handbook of social psychology. 6800-740. New York: McGraw-Hill.
Baym, N.K. (2010). Personal Connections in the Digital Age. Malden, MA: Polity.
Baym, N.K., & Ledbetter, A. (2009). Tunes that bind? Predicting friendship strength in a music-based social network. Information, Community, & Society, 12(3), 408-427.
Birnie, S. A., & Horvath, P. (2002). Psychological predictors of internet social
communication. Journal of Computer-Mediated Communication (On-line), 7(4).
Boase, J., & Kobayashi, T. (2008). Kei-Tying teens: Using mobile phone e-mail to
bond, bridge, and break with social ties – a study of Japanese adolescents. International Journal of Human-Computer Studies, 66(12), 930-943.
Campbell, H. (2007). Texting the faith: Religious users and cell phone culture. The cell phone reader: Essays in social transformation. 139-154. NY: Peter Lang.
Castells, M. M., Ardevol, F., Qiu, J. L., & Sey, A. (2007). Mobile communication and society: A global perspective. Cambridge: The MIT Press.
Cichocki, D. A. (1995). Maintaining stable friendships: An investigation of strategic and routine communication. Ball State University.
Collins, W. A., & Russel, G. (1991). Mother-child and father-child relationships in adolescence: A developmental analysis. Developmental Review, 11, 99-136.
Contreras-Castillo, J., Pe´rez-Fragosob, C., & Favelac, J. (2006). Assessing the use of instant messaging in online learning environments. Interactive Learning Environments, 14(3), 205-218.
Dainton, M., Zelley, E., & Langan, E. (2003). Maintaining friendships throughout the lifespan. Maintaining relationships through communication: Relational, contextual, and cultural variations. 79-102. Mahwah, NJ: Erlbaum.
Dindia, K., & Canary, D. J. (1993). Definitions and theoretical perspectives on maintaining relationships. Journal of Social and Personal Relationships, 10, 163-173.
Duran, R. L., Kelly, L., & Roratu, T. (2011). Mobile phones in romantic relationships and the dialectic of autonomy versus connection. Communication Quarterly , 59(1), 19-36.
Ellison, N., Heino, R., & Gibbs, E. (2006). Managing impressions online: Self-presentation processes in the online dating environment. Journal of Computer-Mediated Communication 11, 415-441.
Erwin, B. A., Turk, C. L., Heimberg, R. G., Fresco, D. M., & Hantula, D. A. (2004). The internet: Home to a severe population of individuals with social anxiety. Anxiety Disorders, 18, 629-646.
Feld, S.L. (1991). Why your friends have more friends than you do? American Journal of Sociology, 96, 1464-1477.
Fortunati, L. (2002). The mobile phone: Towards new categories and social relations. Information, Communication & Society, 5(4), 513-528.
Granovetter, M. S. (1983). The strength of weak ties: A network theory revisited. Sociological Theory, 1, 201-233.
Greenfield, D. N. (1999). Virtual addiction. Oakland, CA: New Harbinger.
Gruber, J. (2012). Texting relationships. Muhlenberg Weekly. Retrieved October 10, 2013, from http://www.muhlenbergweekly.com/texting-relationships-1.2894924 #.Um7NVXBmgng
Hall, J. H., (2011). Sex differences in friendship expectations: A meta-analysis. Journal of Social and Personal Relationships, 28(6), 723-747.
Hamburger, Y. A., & Ben-Artzi, E. (2000). The relationship between extraversion and neuroticisim and the different uses of the Internet. Computers in Human Behavior, 16, 441-449.
Haythornthwaite, C. (2005). Social networks and internet connectivity effects. Information, Communication, & Society 8(2), 125-147.
Haythornthwaite, C., & Wellman, B. (2002). The internet in everyday life: An introduction. The Internet in everyday life . 3-45. Oxford: Blackwell.
Heimberg, R. G., Mueller, G. P., Holt, C. S., Hope, D. A., & Liebowitz, M. R. (1992). Assessment of anxiety in social interaction and being observed by others: The Social Interaction Anxiety Scale and the Social Phobia Scale. Behavior Therapy, 23, 53-73.
Ishii, K. (2006). Implications of mobility: The uses of personal communication media in everyday life. Journal of Communication, 56(2), 346-365.
Jacobson, D. (2007). Interpreting instant messaging: Context and meaning in computer-mediated communication. Journal of Anthropological Research, 63(3), 359-381.
Jennings, N., & Wartella, E. (2004). Technology and the family. Handbook of Family Communication. 593-608. Mahwah, NJ: Erlbaum.
Joinson, A. N. (2001). Self disclosure in CMC: The role of self awareness and visual anonymity. European Journal of Social Psychology, 31, 177-192.
Katz, J. E., & Aakhus, M. A., (2002). Conclusion: Making meaning of mobiles-a theory of Apparatgeist. Perpetual contact: Mobile communication, private talk, public performance. New York: Cambridge University Press.
Katz, J. E., & Rice, R. E. (2002). Social consequences of internet use: Access, involvement and interaction. Cambridge, MA: MIT Press.
Kelly, L., & James, A. K. (2007). Development of the affect for communication channels scale. Journal of Communication, 57 (2), 349-365.
Kraut, R., Patterson, M., Lundmark, V., Kiesler, S., Mukhopadhyay, T., & Scherlis, W. (1998). Internet paradox: A social technology that reduces social involvement and psychological well-being? American Psychologist, 53(9), 1017-1031.
Lampe, C. E. (2006). A facebook in the Crowd: Social searching vs. social browsing. Proceedings of the 2006 20th Anniversary Confference on Computer Supported Coorporative Work.167-170. New York: ACM Press.
Laumann, E.O. (1969). Friends of urban men: An assessment of accuracy in reporting their socio-economic attributes, mutual choice, and attitude development. Sociometry, 32, 54-69.
Leary, M. R. (1983). Social anxiousness: The construct and its measurement. Journal of Personality Assessment, 47, 66–75.
Leary, M. R., & Kowalski, R. M. (1995). Social Anxiety. New York: Guilford.
Lenhart, A., Rainie, L., & Lewis, O. (2001). Teenage life online: The rise of the instant-message generation and the internet’s impact on friendships and family relationships. Online networking environment. Retrieved October 18, 2013, from http://one.center-school.org/search-document-detail.php?ID=826
Leung, L. (2007). Unwillingness-to-communicate and college students’ motives in SMS mobile messaging. Telematics & Informatics, 24(2), 115-129.
Licoppe, C. (2004). Connected presence: The emergence of a new repertoire for managing social relationships in a changing communication technoscape. Society and Space 22(1), 135-156.
Ling, R., & Ytrri, B. (2002). Hyper-coordination via mobile phones in Norway. Perpetual contact: Mobile communication, private talk, public performance. Cambridge. MA: Cambridge University Press, 139-169.
Lo, O. (2006). The roles of gratification opportunities, gratifications-obtained, and demographics in determining usage preference of instant messaging and e-mail among college students. School of Journalism & Communication, The Chinese University of Hong Kong.
Mackiewicz, J. & Lam, C. (2009). Coherence in workplace instant messages. Journal of Technical Writing and Communication, 39(4), 417-431.
Madell, D. E., & Muncer, S. J. (2007). Control over social interactions: An important reason for young people’s use of the Internet and mobile phones for communication. Cyberpsychology & Behavior, 10(1), 137-140.
Mattick, R. P., & Clarke, J. C. (1989). Development and validation of measures of social phobia scrutiny fears and social interaction anxiety. Behaviour Research and Therapy, 36, 455-470.
McKee, M. (2013). Seven Ways to Text with Graciousness and Savvy. Mannersmentor. Retrieved December 8, 2013, from http://www.mannersmentor. com/only-at-work/seven-ways-to-text-with-graciousness-and-savvy
McKenna, K. Y. A. & Bargh, J. A. (1998). Coming out in the age of the Internet:
Identity "demarginalisation" through virtual group partic ipation. Journal of Personality and Social Psychology, 75, 681-694.
McKenna, K. Y. A., Green, A. S., & Gleason, M. E. J. (2002). Relationship formation on the Internet: What's the big attraction? Journal of Social Issues, 58, 9-31.
Mesch, G. S. (2001). Social relationships and Internet use among adolescents in Israel. Social Science Quarterly, 82, 329-340.
Mesch, G. S., & Talmud, I. (2006). Online friendship formation, communication channels, and social closeness. International Journal of Internet Science, 1 (1), 29-44.
Mischaud, E. (2007). Twitter: Expressions of the whole self. An investigation into
user appropriation of a web-based communications platform. MSc in Politics and
Communication dissertaion. submitted to the Department of Media and Communications, London School of Economics and Political Science.
http://www.lse.ac.uk/collections/media@lse/mediaWorkingPapers/MScDissertationSeries/Mischaud_final.pdf
Nie, N. H., Hillygus, D. S., & Erbring, L. (2002). Internet use, interpersonal relations, and sociability: A time diary study. The Internet in Everyday Life. 215-243. Malden, MA: Blackwell.
Oswald, D., Clark, E., & Kelly, C. (2004). Friendship maintenance: An analysis of individual and dyad behaviors. Journal of Social and Clinical Psychology, 23, 413-441.
Patterson, D., Baker, C., Ding, X., Kaufman, S., Liu, K., & Zaldivar, A. (2008). Online everywhere: Evolving mobile instant messaging practices. In Proceedings of the 10th International Conference on Ubiquitous Computing (UbiComp '08). 64-73. NY: ACM.
Pettigrew, J. (2009). Text messaging and connectedness within close interpersonal relationships. Marriage and Family Review, 45, 697-716.
Pierce, T. (2009). Social anxiety and technology: Face-to-face communication versus technological communication among teens. Computers in Human Behavior, 25, 1367-1372.
Pollet, T., Roberts, S., & Dunbar, R. (2011). Use of social network sites and instant messaging does not lead to increased offline-social network size, or to emotionally closer relationships with offline network members. CyberPsychology Behavior and Social Networking, 14(4), 253-258.
Rabby, M. K., & Walther, J. (2003). Computer-mediated communication effects on relationship formation and maintenance. Maintaining relationships through communication: Relational, contextual, and cultural variations. 141-162. Mahwah, NJ: Erlbaum.
Ramirez, A., & Broneck, K. (2009). ‘IM me’: Instant messaging as relational maintenance and everyday communication. Journal of Social and Personal Relationships, 26, 291-314.
Ramirez, A., Dimmick, J., Feaster, J., & Lin, S. (2008). Interpersonal media competition: The gratification niches of instant messaging, e-mail, and the telephone. Communication Research, 35, 529-547.
Reid, D.J., & Reid, F.J.M. (2007). Text or talk? Social anixiety, loneliness, and divergent preferences for cell phone use. Cyber Psychology & Behavior , 10 (3), 424-435.
Reis, H.T. (1990). The role of intimacy in interpersonal relations. Journal of Social and Clinical Psychology, 9, 15-30.
Rice, R. E., & Love, G. (1987). Electronic emotion: Socio-emotional content in a computer mediated communication network. Communication Research, 14, 85-108.
Rose, S. M., & Serafica, F. C. (1986). Keeping and ending casual, close, and best friendships. Journal of Social and Personal Relationships, 3, 275-288.
Schlenker, B. R., & Leary, M.R. (1982). Social anxiety and self-presentation: A conceptualization and a model. Psychological Bulletin, 92, 641-669.
Schneier, F. R., Johnson, J., Hornig, C. D., Liebowitz, M. R., & Weissman, M. M. (1992). Social phobia: Comorbidity and morbidity in an epidemiologic sample. Archives of General Psychiatry, 49, 282-288.
Sharabany, R. (1974). Intimate friendship among Kibbutz and city children and its measurement. PhD dissertation, Cornell University, No. 74-17-682, Ann arbor (MI 48106): University Microfilms International.
Sharabany, R. (1994). Intimate friendship scale: Conceptual underpinnings, psychometric properties and construct validity. Journal of Social Personal Relationships, 11, 449-469.
Smith, E. (2000). Social psychology. Psychology Press(2th Ed ). New York: Psychology Press.
Stritzke, W. G. K., Nguyen, A., & Durkin, K. (2004). Shyness and computer-mediated communication: A self-presentational theory perspective. Media Psychology, 6, 1-22.
Subrahmanyam, K., &. Greenfield, P. (2008). Online communication and adolescent relationships. The Future of Children , 18 (1 Spring), 119-145.
Suval, L. (2012). Does texting hinder social skills? Retrieved October 12, 2013, from http://psychcentral.com/blog/archives/2012/05/02/does-texting-\hinder
-social-skills/
Thompson, L., & Cupples, J. (2008). Seen and not heard? Text messaging and digital society. Social & Cultural Geography, 9(1), 95-108.
Thurlow, C. (2003). Generation text? Exposing the sociolinguistics of young peoples text-messaging. Discourse Analysis Online. Retrieved October 22, 2013, from http://extra.shu.ac.uk/daol/articles/v1/n1/a3/thurlow2002003.html
Tonkin, S. (2010). Getting hyper-personal. Global Media Journal-Australia Edition, 4(1), 1-9.
Valacich, J. S., Paranka, D., George, J. F., & Nuna-maker, J. F. (1993). Communication concurrency and the new media: A new dimension for media richness. Communication Research, 20, 249-276.
Valkenburg, P. M., & Peter, J. (2007). Pre-adolescents’ and adolescents’ online communication and their closeness to friends. Developmental Psychology, 43(2), 267-277.
Verbrugge, L. M. (1977). The structure of adult friendship choices, Social Forces, 56, 576-597.
Walther, J. B. (1996). Computer-mediated communication: Impersonal, interpersonal, and hyperpersonal interaction. Communication Research, 23, 3-43.
Walther, J. B., & Parks, M. R. (2002). Cues filtered in, cues filtered out: Computer-mediated communication and relationships. Handbook of interpersonal communication (3th ed). 529-563. Thousand Oaks, CA: Sage.
Watson, D., & Friend, R. (1969). Measurement of social-evaluative anxiety. Journal of Consulting and Clinical Psychology, 33, 448-457.
Wellman, B., & Gulia, M. (1998). Net surfers don’t ride alone: Virtual communities as communities. Communities in cyberspace. London: Routledge. Revised version in B. Wellman (ed.), Networks in the global village. 331-367. Boulder, CO: Westview Press.
Wimmer, R. D., & Dominick, J. R. (2006). Mass media resrarch：An introduction(8th ed.). Belmont, CA: Wadworth Publishing Company.
Wolak, J., Mitchell, K. J., & Finkelhor, D. (2003). Escaping or connecting? Characteristics of youth who form close online relationships. Journal of Adolescence, 26, 105-119.
Wright, K. (2004). On-line relational maintenance strategies and perceptions of partners with exclusively internet-based and primarily internet-based relationships. Communication Studies, 55, 239-253.
Zhao, S. (2006). Do Internet users have more social ties? A call for differentiated analyses of internet use. Journal of Computer-Mediated Communication, 11(3), Retrieved October 3, 2013, from: http://hcmc.indiana.edu/vol11/issue3/ zhao.html.
Zhou, L. (2005). An empirical investigation of deception behaviour in instant messaging. IEEE Transactions on Professional Communication, 48(2), 147-160.