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An investigation into the effects of Text-To-Speech voice and 3D avatars on the perception of presence and flow of live help in electronic commerce

Published:01 December 2005Publication History
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Abstract

Expansion and growth of online shopping has led many companies to provide real-time communications on their Web sites to facilitate human-to-human interaction between service representatives and customers. The current study analyzes the interface design of such Live Help functions. More specifically, it attempts to understand whether or not the implementation of Text-To-Speech (TTS) voice communication and 3D avatars in the user interface of Live Help affects consumers' views of their own interactions with a service person.A laboratory experiment was designed to empirically test the hypotheses that TTS voice communication and 3D avatars can significantly affect consumers' perceptions of presence and flow. A 2*3 full factorial design was used (assessing three options for the use of voice and text, and two options for the use of avatars). The results of the experiment demonstrate that the presence of TTS voice significantly increases consumers' perceptions of flow (a construct depicting a user's interaction with a computer as playful and exploratory), while 3D avatars enhance consumers' feelings of telepresence (a user's experience of seeming to be present in a remote environment by means of a communication medium). These findings offer practitioners guidelines on how to improve interface designs for real-time human-to-human communications on electronic commerce Web sites.

References

  1. Aberg, J. and Shahmehri, N. 2000. The role of human Web assistants in e-commerce: An analysis and a usability study. Internet Resear.: Electron. Network. Applicat. Policy 10, 114--125.Google ScholarGoogle Scholar
  2. Aberg, J. and Shahmehri, N. 2001. An empirical study of human Web assistants: Implications for user support in Web information systems. In Proceedings of the SIGCHI Conference on Human Factors in Computing Systems, Seattle, WA. 404--411. Google ScholarGoogle Scholar
  3. Aberg, J. and Shahmehri, N. 2003. Live help systems. In Human Factors and Web Development, J. Ratner Ed. Laurence Erlbaum Associates, Mahwah, NJ. 287--309Google ScholarGoogle Scholar
  4. Agarwal, R. and Karahanna, E. 2000. Time flies when you're having fun: Cognitive absorption and beliefs about information technology usage. MIS Quarterly 24, 665--694. Google ScholarGoogle Scholar
  5. AT&T Labs. 2003. http://www.naturalvoices.att.com/news/awards.html.Google ScholarGoogle Scholar
  6. Basso, A., Goldberg, D., Greenspan, S., and Weimer, D. 2001. First impressions: Emotional and cognitive factors underlying judgments of trust E-Commerce. In Proceedings of the ACM Conference on Electronic Commerce (EC'01). Tampa, FL. 137--143. Google ScholarGoogle Scholar
  7. Beutnagel, M., Conkie, A., Schroeter, J., Stylianou, Y., and Syrdal, A. 1999. The AT&T next-gen TTS system. The Joint Meeting of ASA, EAA, and DAGA. Berlin, Germany.Google ScholarGoogle Scholar
  8. Biocca, F. 1997. The cyborg's dilemma: Progressive embodiment in virtual environment. J. Comput. Mediat. Comm. 3. http://jcmc.indiana.edu/vol3/issue2/biocca2.html.Google ScholarGoogle Scholar
  9. Biocca, F., Harms, C., and Burgoon, J. K. 2003. Towards a more robust theory and measure of social presence: Review and suggested criteria. Presence: Teleoperators Virtual Environ. 12, 456--480. Google ScholarGoogle Scholar
  10. Bordia, P. 1997. Face-to-face versus computer-mediated communication: A synthesis of the experimental literature. J. Business Comm. 34, 99--120.Google ScholarGoogle Scholar
  11. Burke, K. and Chidambaram, L. 1999. How much bandwidth is enough? A longitudinal examination of media characteristics and group outcomes. MIS Quarterly 23, 557--580. Google ScholarGoogle Scholar
  12. Cassell, J. and Bickmore, T. 2000. External manifestations of trustworthiness in the interface. Comm. ACM 43, 50--56. Google ScholarGoogle Scholar
  13. Cassell, J., Bickmore, T., Billinghurst, M., Campbell, L., Chang, K., Vilhjalmsson, H., and Yan, H. 1999. Embodiment in conversational interfaces. In Proceedings of the ACM SIGCHI Conference on Human Factors in Computing Systems (CHI'99). Pittsburgh, PA. 520--527. Google ScholarGoogle Scholar
  14. Choi, Y. K., Miracle, G. E., and Biocca, F. 2001. The effects of anthropomorphic agents on advertising effectives and the mediating role of presence. J. Interact. Advertis. 2. http://jiad.org/vol2/no1/choi/index.htm.Google ScholarGoogle Scholar
  15. Csikszentmihalyi, M. 1975. Beyond Boredom and Anxiety. Jossey-Bass, San Francisco, CA.Google ScholarGoogle Scholar
  16. Daft, R. L. and Lengel, R. H. 1984. Information richness: A new approach to managerial behavior and organization design. Resear. Organiza. Behav. 6, 191--223.Google ScholarGoogle Scholar
  17. Daft, R. L. and Lengel, R. H. 1986. Organizational information requirements, media richness and structural design. Management Science 32, 554--571. Google ScholarGoogle Scholar
  18. Daft, R. L., Lengel, R. H., and Trevino, L. K. 1987. Message equivocality, media selection, and manager performance: Implications for information systems. MIS Quarterly 11, 355--366. Google ScholarGoogle Scholar
  19. Davis, F. D. 1989. Perceived usefulness, perceived ease of use and user acceptance of information technology. MIS Quarterly 13, 319--339.Google ScholarGoogle Scholar
  20. Dukcevich, D. 2002. Lands' End's instant business. Forbes. http://www.forbes.com/2002/07/22/0722landsend.html.Google ScholarGoogle Scholar
  21. Dutoit, T. 1997. An Introduction to Text-To-Speech Synthesis (Text, Speech and Language Technology, V. 3). Kluwer Academic Publishers, Dordrecht. Google ScholarGoogle Scholar
  22. Elliot, B., Kolsky, E., and Cain, S. 2001. Contact Center Self-Service Costs. Gartner Group.Google ScholarGoogle Scholar
  23. Fogg, B. J. and Tseng, H. 1999. The elements of computer credibility. In Proceedings of the ACM SIGCHI Conference on Human Factors in Computing Systems (CHI'99). Pittsburgh, PA. 80--87. Google ScholarGoogle Scholar
  24. Gefen, D. and Straub, D. 1997. Gender differences in perception and adoption of E-mail: An extension to the technology acceptance model. MIS Quarterly 21, 389--400. Google ScholarGoogle Scholar
  25. Gerrig, R. J. 1993. Experiencing Narrative Worlds. Yale University Press, New Haven, CT.Google ScholarGoogle Scholar
  26. Hair, J. F., Anderson, R. E., Tatham, R. L., and Black, W. C. 1998. Multivariate Data Analysis. Prentice-Hall, Englewood Cliffs, NJ. Google ScholarGoogle Scholar
  27. Heeter, C. 1992. Being there: The subjective experience of presence. Presence: Teleoperators Virtual Environm. 1, 262--271. Google ScholarGoogle Scholar
  28. Helson, H. 1964. Adaptation-Level Theory. Harper & Row, New York, NY.Google ScholarGoogle Scholar
  29. Hoffman, D. L. and Novak, T. P. 1996. Marketing in hypermedia computer-mediated environments: Conceptual foundations. J. Market. 60, 50--68.Google ScholarGoogle Scholar
  30. Isbister, K. and Nass, C. 2000. Consistency of personality in interactive characters: Verbal cues, nonverbal cues, and user characteristics. Inte. J. Hum.-Comput. Studies 53, 251--267. Google ScholarGoogle Scholar
  31. Jeandrain, A.-C. 2001. Consumer reactions in a realistic virtual shop: Influence on buying style. J. Interact. Advertis. 2. http://jiad.org/vol2/no1/jeandrain/index.htm.Google ScholarGoogle Scholar
  32. Jensen, C., Farnham, S., Drucker, S., and Kollock, P. 2000. The effect of communication modality on cooperation in online environments. In Proceedings of the SIGCHI Conference on Human factors in computing systems (CHI'00). The Hague, The Netherlands, 470--477. Google ScholarGoogle Scholar
  33. Jiang, Z. and Benbasat, I. 2004. Virtual product experience: Effects of visual and functional control of products on perceived diagnosticity and flow in electronic shopping. J. Managem. Inform. Syst. 21, 111--147. Google ScholarGoogle Scholar
  34. Jilka, M., Syrdal, A. K., Conkie, A. D., and Kapilow, D. A. 2003. Effects on TTS quality of methods of realizing natural prosodic variation. The 15th International Congress of Phonetic Science (ICPhS'03). Barcelona, Spain.Google ScholarGoogle Scholar
  35. Karahanna, E. and Straub, D. 1999. The psychological origins of perceived usefulness and ease-of-use. Inform. Managem. 35, 237--250. Google ScholarGoogle Scholar
  36. Kim, T. and Biocca, F. 1997. Telepresence via television: Two dimensions of telepresence may have different connections to memory and persuasion. J. Comput. Mediated Comm. 3, http://jcmc.indiana.edu/vol3/issue2/kim.html.Google ScholarGoogle Scholar
  37. Koufaris, M. 2002. Applying the technology acceptance model and flow theory to online consumer behavior. Inform. Syst. Resear. 13, 205--233. Google ScholarGoogle Scholar
  38. Kumar, N. and Benbasat, I. 2004. The impact of personalization and virtual communities on customers' evaluations of a Website. Working Paper. The University of British Columbia, Vancouver, British Columbia, Canada.Google ScholarGoogle Scholar
  39. Lee, E.-J., Nass, C., and Brave, S. 2000. Can computer-generated speech have gender? An experimental test of gender stereotype. In Proceedings of the ACM SIGCHI Conference on Human Factors in Computing Systems (CHI'00). The Hague, The Netherlands, 289--290. Google ScholarGoogle Scholar
  40. Lee, K. and Nass, C. 2003. Designing social presence of social actors in human computer interaction. In Proceedings of the ACM SIGCHI Conference on Human Factors in Computing Systems (CHI'03). Ft. Lauderdale, FL. 289--296. Google ScholarGoogle Scholar
  41. Lombard, M. and Ditton, T. 1997. At the heart of it all: The concept of presence. J. Comput. Mediated Comm. 3. http://jcmc.indiana.edu/vol3/issue2/lombard.html.Google ScholarGoogle Scholar
  42. Moon, Y. 1998. When the computer is the “salesperson”: Computer response to computer “personalities” in interactive marketing situations. Working Paper. Harvard Business School, Boston, MA.Google ScholarGoogle Scholar
  43. Moore, G. C. and Benbasat, I. 1991. Development of an instrument to measure the perception of adopting an information technology innovation. Inform. Syst. Resear. 2, 192--222.Google ScholarGoogle Scholar
  44. Muhlbach, L., Bocker, M., and Prussog, A. 1995. Telepresence in videocommunications: A study on stereoscopy and individual eye contact. Hum. Factors 37, 290--305.Google ScholarGoogle Scholar
  45. Nass, C. and Lee, K. 2000. Does computer-generated speech manifest personality? An experimental test of similarity-attraction. In Proceedings of the ACM SIGCHI Conference on Human Factors in Computing Systems (CHI'00). 329--336. Google ScholarGoogle Scholar
  46. Nass, C. and Lee, K. 2001. Does computer-synthesized speech manifest personality? Experimental tests of recognition, similarity-attraction, and consistency-attraction. J. Experim. Psych.: Appl. 7, 171--181.Google ScholarGoogle Scholar
  47. Novak, T. P., Hoffman, D. L., and Yung, Y.-F. 2000. Measuring the customer experience in online environments: A structural modeling approach. Marketing Science 19, 22--42. Google ScholarGoogle Scholar
  48. Rafaeli, S. and Sudweeks, F. 1997. Networked interactivity. J. Comput. Mediated Comm. 2. http://jcmc.indiana.edu/vol2/issue4/rafaeli.sudweeks.html.Google ScholarGoogle Scholar
  49. Reeves, B. and Nass, C. 1996. The Media Equation: How People Treat Computers, Television, and New Media like Real People and Places. Cambridge University Press, New York, NY. Google ScholarGoogle Scholar
  50. Rice, R. E. 1992. Task analyzability, use of new medium and effectiveness: A multi-site exploration of media richness. Organiz. Science. 3, 475--500.Google ScholarGoogle Scholar
  51. Salem, B. and Earle, N. 2000. Designing a nonverbal language for expressive avatars. In Proceedings of the 3rd International Conference on Collaborative Virtual Environments (CVE'00). San Francisco, CA. 93--101. Google ScholarGoogle Scholar
  52. Schadler, T., Kolko, J., Strohm, C., and Baxter, S. 2004. Benchmark 2004 Data Overview: Consumer Technographics North America. Forrester Research, Cambridge, MA.Google ScholarGoogle Scholar
  53. Short, J., Williams, E., and Christie, B. 1976. The Social Psychology of Telecommunication. John Wiley & Sons, London, UK.Google ScholarGoogle Scholar
  54. Steuer, J. 1992. Defining virtual reality: Dimensions determining telepresence. J. Comm. 42, 73--93.Google ScholarGoogle Scholar
  55. Trevino, L. K. and Webster, J. 1992. Flow in computer-mediated communication: Electronic mail and voice mail evaluation and impacts. Comm. Resear. 19, 539--573.Google ScholarGoogle Scholar
  56. Webster, J., Trevino, L. K., and Ryan, L. 1993. The dimensionality and correlates of flow in human-computer interactions. Comput. Hum. Behav. 9, 411--426.Google ScholarGoogle Scholar
  57. Wingfield, N. 2002. A question of trust. The Wall Street Journal (Sept. 16) R. 6.Google ScholarGoogle Scholar
  58. Zhang, Q., Wolf, C. G., Daijavad, S., and Touma, M. 1998. Talking to customers on the Web: A comparison of three voice alternatives. In Proceedings of the ACM Conference on Computer Supported Cooperative Work (CSCW'98) Seattle, WA. 109--117. Google ScholarGoogle Scholar
  59. Zhu, L. and Benbasat, I. 2004. Let's shop online together: An empirical investigation of collaborative online shopping support. Working Paper. The University of British Columbia, Vancouver, British Columbia, Canada. Google ScholarGoogle Scholar

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