Perceived Expertise vs. Perceived Trustworthiness: The Suppressed Effect of Source Type on Review Attitude

  • Lotte M. Willemsen
  • Peter C. Neijens
  • Fred E. Bronner


Mediated communication is moving away from the traditional concept of oneway mass communication in which a centrally located sender addresses a mass audience. In today’s interactive media landscape, people formerly known as ‘the audience’ (Rosen, 2006, June 27) are increasingly dictating the creation and dissemination of information. The opportunity for people to actively engage in the public-information process provides consumers with a rich and varied set of consumer opinions, often posted in the form of online product reviews. Online product reviews are seen as a persuasive source of information in the consumerdecision making process, shaping not only consumers’ attitudes but also their purchase behaviors (Bickart and Schindler, 2001; Chevelier and Mayzlin, 2006; Park and Kim, 2008; Senecal and Nantel, 2004).


Source Type Source Credibility Online Review Average Variance Extract Negative Indirect Effect 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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  1. Biswas, D.; Biswas, A.; & Das, N. (2006). “The Differential Effects of Celebrity and Expert Endorsements on Consumer Risk Perceptions. The Role of Consumer Knowledge, Perceived Congruency, and Product Technology Orientation, in: Journal of Advertising, Vol. 35, 17-31.CrossRefGoogle Scholar
  2. Bickart, B. & Schindler, R. M. (2001). “Internet Forums as Influential Sources of Consumer Information,” in: Journal of Interactive Marketing, Vol. 15 (3), 31-40.CrossRefGoogle Scholar
  3. Brown, J., Broderick, A.J., & Lee, N. (2007). “Word of Mouth Communication Within Online Communities: Conceptualizing The Online Social Network,” in Journal of Interactive Marketing, Vol. 21 (3), 2-20.CrossRefGoogle Scholar
  4. Cheung, C.M.K.; Lee, M.K.O. & Rabjohn, N. (2008). “The Impact of Electronic Word-of-Mouth: The Adoption of Online Opinions in Online Customer Communities,” in Internet Research, Vol. 18, 229-247.CrossRefGoogle Scholar
  5. Cheung, G.W. & Lau, R.S. (2008). “Testing Mediation and Suppression Effects of Latent Variables: Bootstrapping with Structural Equation Models,” in: Organizational Research Methods, Vol. 11, 296-325.CrossRefGoogle Scholar
  6. Chevelier, J.A. & Mayzlin, D. (2006). “The Effect of Word of Mouth on Sales: Online Book Reviews,” in: Journal of Marketing Research, Vol. 43 (3), 345-354.CrossRefGoogle Scholar
  7. Crowley, A.E. & Hoyer, W.D. (1994). “An Integrative Framework for Understanding Two-Sided Persuasion,” in: Journal of Consumer Research, Vol. 20, 561-574.CrossRefGoogle Scholar
  8. DeBono, K.G. & Harnish, R.J. (1988). “Source Expertise, Source Attractiveness, and the Processing of Persuasive Information: A Functional Approach,” in: Journal of Personality and Social Psychology, Vol. 55, 541-546.CrossRefGoogle Scholar
  9. Doh, S.J. & Hwang, J.S. (2009). “How Consumers Evaluate EWOM (Electronic Word-of-Mouth) Messages,” in: Cyberpsychology, Behavior, and Social Networking, Vol. 12 (2), 193-197.Google Scholar
  10. Eastin, M. S. (2001). “Credibility Assessments of Online Health Information: The Effects of Source Expertise and Knowledge of Content,” in: Journal of Computer-Mediated Communication, Vol. 6 (4).Google Scholar
  11. Fornell, C. & Larcker, D.F. (1981). “Evaluating Structural Equation Models with Unobservable Variables and Measurement error,” in: Journal of Marketing Research, Vol. 18, 382-388.CrossRefGoogle Scholar
  12. Friedman, H.H. & Friedman, L. (1979). “Endorser Effectiveness by Product Type,” in: Journal of Advertising Research, Vol. 19, 63-71.Google Scholar
  13. Gotlieb, J.B. & Sarel, D. (1991). “Comparative Advertising Effectiveness: The Role of Involvement and Source Credibility,” in: Journal of Advertising, Vol. 20, 38-45.Google Scholar
  14. Harmon R.R. & Coney K.A. (1982). “The Persuasive Effects of Source Credibility in Buy and Lease Situations,” in: Journal of Marketing Research, Vol. 19, 255-260CrossRefGoogle Scholar
  15. Homer, P.M. & Kahle, L.R. (1990). “Source Expertise, Time of Source Identification, and Involvement in Persuasion: An Elaborative Processing Perspective,” in: Journal of Advertising, Vol. 19, 30-39.Google Scholar
  16. Hovland, C.I., Janis, I.L. & Kelley, H.H. (1953). “Communication and Persuasion: Psychological Studies of Opinion Change,” Yale University Press, New Haven, Connecticut.Google Scholar
  17. Hsieh, Y.C.; Chiu, H.C. & Chiang, M.Y. (2005). “Maintaining a Committed Online Customer: A Study Across Search-Experience-Credence Products,” in: Journal of Retailing, Vol. 81 (1), 75-82.CrossRefGoogle Scholar
  18. Hu, Y. & Sundar, S.S. (2010). “Effects of Online Health Sources on Credibility and Behavioral Intentions,” in: Communication Research, Vol. 37, 105–132.CrossRefGoogle Scholar
  19. Huang, J.H. & Chen, Y.F. (2006). “Herding in Online Product Choice,” in: Psychology and Marketing, Vol. 23, 413-428.CrossRefGoogle Scholar
  20. Jain, S.P. & Posavac, S.S. (2001). “Prepurchase Attribute Verifiability, Source Credibility, and Persuasion,” in: Journal of Consumer Psychology, Vol. 11 (3), 169-180.CrossRefGoogle Scholar
  21. Krishnan B.C. & Hartline, M.D. (2001). “Brand Equity: Is it More Important in Services?,” in: Journal of Services Marketing, Vol.15, 328-242CrossRefGoogle Scholar
  22. Lascu D.N., Bearden, W.O. & Rose, R.L. (1995). “Norm Extremity and Interpersonal Influences on Consumer Conformity,” in: Journal of Business Research, Vol. 32, 201-212CrossRefGoogle Scholar
  23. LaTour, M.S. & Rotfeld, H.J. (1997). “There are Threats and (Maybe) Fear-Caused Arousal: Theory and Confusions of Appeals to Fear and Fear Arousal Itself,” in: Journal of Advertising, Vol. 26 (3), 45-59.Google Scholar
  24. Lim, K.H., Sia, C.L., Lee, M.K.O. & Benbasat, I. (2006). “Do I Trust You Online, and if so, Will I Buy? An Empirical Study of Two Trust-Building Strategies,” in: Journal of Management Information Systems, Vol. 23, 233-266.CrossRefGoogle Scholar
  25. McCracken, G. (1989). “Who is the Celebrity Endorser? Cultural Foundations of the Endorsement Process,” in: Journal of Consumer Research, Vol. 16, 310-321.CrossRefGoogle Scholar
  26. McGuire, W.J. (1985). “Attitudes and Attitude Change”, in: Lindzey, G. and Aronson, E. (1985) (eds.): Handbook of Social Psychology: Special Fields and Applications, Random House, New York, 233-346.Google Scholar
  27. Ohanian, R. (1990). “Construction and Validation of a Scale to Measure Celebrity Endorsers’ Perceived Expertise, Trustworthiness, and Attractiveness,” in: Journal of Advertising, Vol. 19 (3), 39-52.Google Scholar
  28. Park, D.H. and Kim, S. (2008). “The Effects of Consumer Knowledge on Message Processing of Electronic Word-of-Mouth via Online Consumer Reviews,” in: Electronic Commerce Research and Applications, Vol. 7, 399-410.CrossRefGoogle Scholar
  29. Cohen, J., Cohen, P., West, S.G. & Aiken, L.S. (2003). “Applied Multiple Regression/Correlation Analysis for the Behavioral Sciences (3rd ed.),” Lawrence Erlbaum Associates, Nahwah, New Jersey.Google Scholar
  30. Mackiewicz, J. (2010). “Assertions of Expertise in Online Product Reviews,” in: Journal of Business and Technical Communication, Vol. 24, 3-28.CrossRefGoogle Scholar
  31. MacKinnon, D.P., Krull, J.L. & Lockwood, C. M. (2000). “Equivalence of the Mediation, Confounding, and Suppression Effect,” in: Prevention Science, Vol. 1, 173-181CrossRefGoogle Scholar
  32. Metzger, M.J.; Flanagin, A.J. & Medders, R.B. (2010). “Social and Heuristic Approaches to Credibility Evaluation Online,” in: Journal of Communication, Vol. 60 (3), 413-439.CrossRefGoogle Scholar
  33. Mills, J. & Jellison, J M. (1967). “Effect of Opinion Change of How Desirable the Communication is to The Audience the Communicator Addressed,” in: Journal of Personality and Social Psychology, Vol. 6, 98-101.CrossRefGoogle Scholar
  34. Pallak, S.R., Murroni, E.; & Koch, J. (1983). “Communicator Attractiveness and Expertise, Emotional Versus Rational Appeals, and Persuasion: A Heuristic Versus Systematic Processing Interpretation,” in: Social Cognition, Vol. 2, 122-141.CrossRefGoogle Scholar
  35. Pechmann, C. (1992). “Predicting When Two-Sided Ads Will be More Effective Than One-Sided Ads: The Role of Correlational and Correspondent Inferences,” in: Journal of Marketing Research, Vol. 29, 441-453.CrossRefGoogle Scholar
  36. Petty, R.E.; Cacioppo, J.T. & Goldman, R. (1981). “Personal Involvement as a Determinant of Argument-Based Persuasion,” in: Journal of Personality and Social Psychology, Vol. 41, 847-855.CrossRefGoogle Scholar
  37. Petty, R.E. & Wegener, D.T. (1998). “Attitude Change: Multiple Roles for Persuasion Variables,” in: Gilbert, D. T.; Fiske, S. T.; and Lindzey, G. (1998) (eds.): The Handbook of Social Psychology, American Psychological Association, Washington DC, Vol. 1, 37-51.Google Scholar
  38. Pollach, I. (2008). “Electronic Word-of-Mouth: A Genre Approach to Consumer Communities,” in: International Journal of Web Based Communities archive, Vol. 4, 284-301.CrossRefGoogle Scholar
  39. Pornpitakpan, C. (2004). “The Persuasiveness of Source Credibility: A Critical Review of Five Decades’ Evidence,” in: Journal of Applied Social Psychology, Vol. 34 (2), 243-281.CrossRefGoogle Scholar
  40. Preacher, K.J. & Hayes, A.F. (2008). “Asymptotic and Resampling Strategies for Assessing and Comparing Indirect Effects in Multiple Mediator Models,” in: Behavior Research Methods, Vol. 40, 879-891CrossRefGoogle Scholar
  41. Rhine, R.J. & Severance, L.J. (1970). “Ego-involvement, Discrepancy, Source Credibility, and Attitude Change,” in: Journal of Personality and Social Psychology, Vol. 16 (2), 175-190.CrossRefGoogle Scholar
  42. Rosen, J. (2006, June 27). “The People Formerly Known as the Audience,” Retrieved from
  43. Schindler, R.M. & Bickart, B. (2005). “Published “Word of Mouth”: Referable, Consumer-Generated Information on the Internet,” in Haugtvedt, C. P.; Machleit, K. A.; and Yalch, R. F. (2005) (eds.): Online Consumer Psychology: Understanding and influencing behavior in the virtual world, Lawrence Erlbaum Associates, Mahwah, New Jersey, 35-61.Google Scholar
  44. Sen, S. & Lerman, D. (2007). “Why are You Telling me This? An Examination Into Negative Consumer Reviews on the Web,” in: Journal of Interactive Marketing, Vol. 21, 76-94.CrossRefGoogle Scholar
  45. Senecal, S. & Nantel, J. (2004). “The Influence of Online Product Recommendations on Consumers’ Online Choices,” in: Journal of Retailing, Vol. 80, 159-169.CrossRefGoogle Scholar
  46. Sher, P.J. & Lee, S.H. (2009). “Consumer Skepticism and Online Reviews: An Elaboration Likelihood Model Perspective,” in: Social Behavior and Personality, Vol. 37 (1), 137-143.CrossRefGoogle Scholar
  47. Shrout, P.E. & Bolger, N. (2002). “Mediation in Experimental and Nonexperimental studies: New Procedures and Recommendations, ” in: Psychological Methods, Vol. 7, 422-445CrossRefGoogle Scholar
  48. Tan, K.W.P.; Swee, D., Lim, C., Detenber, B.H.; & Alsagoff, L. (2008). “The Impact of Language Variety and Expertise on Perceptions of Online Political Discussions,” Journal of Computer-Mediated Communication, Vol. 13 (1), 76-99.CrossRefGoogle Scholar
  49. Taylor, S E. & Fiske, S.T. (1978). “Salience, Attention, and Attribution: Top of the Head Phenomena,” in: Berkowitz, L. (1978) (ed.), Advances in Experimental Social Psychology, Academic Press, San Diego, California, 249-288.Google Scholar
  50. Vermeulen I E. & Seegers D. (2009). “Tried and Tested: The Impact of Online Hotel Reviews on Consumer Consideration,” in: Tourism Management, Vol. 30, 123-127.CrossRefGoogle Scholar
  51. Wang, A. (2005). “The Effects of Expert and Consumer Endorsements on Audience Response,” in: Journal of Advertising Research, Vol. 45 (4), 402-412.CrossRefGoogle Scholar
  52. Willemsen, L.M., Neijens, P.C. & Bronner, F.E. (2010). “Not All Created Equal? The Content Characteristics and Usefulness of Online Consumer Reviews,” in SWOCC working paper series, Vol. 2, 1-24.Google Scholar
  53. Zaichkowsky, J.L. (1994). “The Personal Involvement Inventory: Reduction, Revision, and Application to Advertising,” in: Journal of Advertising, Vol. 23 (4), 59-70.Google Scholar

Copyright information

© Gabler Verlag | Springer Fachmedien Wiesbaden GmbH 2011

Authors and Affiliations

  • Lotte M. Willemsen
    • 1
  • Peter C. Neijens
    • 1
  • Fred E. Bronner
    • 1
  1. 1.University of AmsterdamThe Netherlands

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