Journal ArticleDOI
Better Liked than Right Trustworthiness and Expertise as Factors in Credibility
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TLDR
In this paper, a persuasive message on the subject of international maritime boundaries was presented in pamphlet form to 1055 students in four countries, and the authors manipulated trustworthiness and expertise of the source in a 2 x 2 x 4 factorial design of the after-only type to assess the relative impact of each component on the communicator's persuasiveness.Abstract:
A persuasive message on the subject of international maritime boundaries was presented in pamphlet form to 1055 students in four countries. Trustworthiness and expertise of the source were manipulated in a 2 x 2 x 4factorial design of the after-only type to assess the relative impact of each component on the communicator's persuasiveness. Main effects were found for both country and trustworthiness. Overall, the expert and trustworthy source generated the most opinion change. However, the trustworthy communicator was more persuasive, whether expert or not.read more
Citations
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Construction and Validation of a Scale to Measure Celebrity Endorsers' Perceived Expertise, Trustworthiness, and Attractiveness
TL;DR: The authors developed a 15-item semantic differential scale to measure perceived expertise, trustworthiness, and attractiveness of celebrity endorsers, which was validated using respondents' self-reported measures of intention to purchase and perception of quality for the products being tested.
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The Persuasiveness of Source Credibility: A Critical Review of Five Decades' Evidence
TL;DR: This article reviewed the empirical evidence of the effect of credibility of the message source on persuasion over a span of 5 decades, primarily to come up with recommendations for practitioners as to when to use a high- or a low-credibility source and secondarily to identify areas for future research.
Journal ArticleDOI
Informational Influence in Organizations: An Integrated Approach to Knowledge Adoption
TL;DR: Results support the model, suggesting that the process models used to understand information adoption can be generalized to the field of knowledge management, and that usefulness serves a mediating role between influence processes and information adoption.
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The Impact of Corporate Credibility and Celebrity Credibility on Consumer Reaction to Advertisements and Brands
TL;DR: In this paper, the authors assessed the impact of endorser and corporate credibility on attitude-toward-the-ad, attitudetoward the brand, and purchase intentions.
Journal ArticleDOI
The Effect of Electronic Word of Mouth on Sales: A Meta-Analytic Review of Platform, Product, and Metric Factors
TL;DR: In this paper, the authors conduct a meta-analysis of 1,532 effect sizes across 96 studies covering 40 platforms and 26 product categories and find that eWOM is positively correlated with sales, but its effectiveness differs across platform, product, and metric factors.
References
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Journal ArticleDOI
Extension of multiple range tests to group means with unequal numbers of replications
Abstract: In many fields of research, one is faced with the task of comparing the effects of treatments which have been replicated unequally. This happens for a number of reasons. In an experiment on animals, some may get sick and have to be removed from the experiment. In some experiments, the amount of material available for certain treatments may not be as much as for other treatments. If the experimenter has specified orthogonal contrasts that he is interested in before he runs the experiment, one can test the various treatment effects by an F-test after the treatment sum of squares has been partitioned into individual degrees of freedom for each orthogonal contrast. If the experimenter has not specified orthogonal contrasts, one is faced with the problem of deciding which treatments are significantly different. Several writers, including Duncan, Keuls, Newman, and Tukey, have developed multiple range tests to show differences among treatments that have been replicated the same number of times and when nothing was specified concerning the treatments. Duncan [1] compares the above methods and gives citations. This extension to unequal numbers of replications will be exemplified with reference to Duncan's "New Multiple Range Test," but is applicable to any of the above writers' tests; all one has to do is use their tabled ranges. In Duncan's test for an equal number of replications, the difference between any two ranked means is significant if the difference exceeds a shortest significant range. This shortest significant range is designated by R, and is obtained by multiplying the standard error of a mean, s,, by a given value, zn2, obtained from a table of significant studentized ranges which Duncan has tabled for both the 5% and 1% test. In Duncan's terminology, n2 is the degrees of freedom of the error mean square and p = 1, 2, * *, t is the number of means concerned. Consider an experiment with five treatments, A, B. C, D, and E, each replicated n times. Suppose on ranking the means from low to high one obtains
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The contribution of studies of source credibility to a theory of interpersonal trust in the communication process
TL;DR: A theory of the dimensions of interpersonal trust in communication is presented in this paper, which is based on a listener's perceptions of a speaker's expertness, reliability, intentions, activeness, personal attractiveness, and the majority opinion of the listener's associates.
Journal ArticleDOI
Reinstatement of the communicator in delayed measurement of opinion change.
TL;DR: A recent experiment suggests that the sleeper effect may be due to the removal with time of a tendency to discount the material presented by an untrustworthy source.
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