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The Loss of Effective Authority: A Crisis in Trust and CredibilityMcCarthy, Michael E. Unknown Date (has links)
with Professor Michael E. McCarthy, Vassar College / McGuinn Hall 121
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Analysing Credibility of Twitter Users Using the PageRank Algorithm / Analys av trovärdighet hos Twitteranvändare med hjälp av PageRank-algoritmenElin, Karagöz, Alice, Heavey January 2017 (has links)
In a time when information and opinions are to a large extent shared via social media, it is important to find a way to determine how credible the content is. The purpose of this study is to investigate whether PageRank based algorithms can be used to deter- mine how credible a Twitter user is based on how much the user’s posts are retweeted by other users. Two different algorithms based on PageRank have rated the credibility of Twitter users in a network. This ranking has been compared with a manual credibil- ity check on the users to determine how close to reality the credibility distribution from the algorithms is. The results show that the algorithms can be said to preform better than random, but they still assign inaccurate credibility scores to many users. The simplicity of the algorithms is an advantage compared to other methods used in previous research. The conclusion is that the algorithms in their current states are not suitable for determin- ing the credibility of Twitter users. / I en tid då information och åsikter till stor del delas via sociala medier är det viktigt att finna ett sätt att avgöra hur trovärdig detta innehåll är. Syftet med denna studie är att utreda om det med hjälp av algoritmer baserade på PageRank-algoritmen går att avgö- ra hur trovärdig en Twitteranvändare är, baserat på hur mycket användarens inlägg bli- vit delade av andra användare. Två olika algoritmer baserade på PageRank har rankat trovärdigheten hos Twitteranvändare i ett nätverk. Denna rankning har sedan jämförts med en manuell trovärighetstilldelning av användarna för att avgöra hur nära verklighe- ten algoritmernas trovärdighetsfördelning är. Resultaten visar att algoritmerna kan anses prestera bättre än slumpen, men att de trots detta tilldelar en fleaktig trovärdighet till många användare i nätverket. Algoritmernas triviala natur ger dem en fördel gentemot algoritmer som använts i tidigare studier. Slutsatsen är att algoritmerna i deras nuvaran- de form inte är lämpade för att fastställa trovärdighet hos Twitteranvändare.
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Differences in Perceptions of News and Source Credibility Based on Reporter Accent: An Elaboration Likelihood Model PerspectiveLu, Sirui 17 September 2015 (has links)
No description available.
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Nonverbal effects of dress and role upon adviser credibility in a first impression situationPowell, Jill D. January 1975 (has links)
No description available.
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Robustness of generalized estimating equations in credibility modelsHuang, Danwei., 黃丹薇. January 2007 (has links)
published_or_final_version / abstract / Statistics and Actuarial Science / Master / Master of Philosophy
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Tanning bed use, deviance regulation theory, and source factorsHead, Katharine J. 15 May 2009 (has links)
Tanning bed use, especially among young, white females, has become a serious health problem in the United States. Those who use tanning beds value a tanned appearance; thus, one possible way to get individuals to stop using tanning beds is to persuade them to begin using an alternative method: a sunless tanner. This study sought to use persuasive messages to encourage individuals to both stop using tanning beds and start using a sunless tanner. Deviance Regulation Theory (DRT) was used to design three messages, and source expertise was manipulated (high and low). In addition, attitudes, perceived norms, benefits and threats about tanning were examined. Results indicate that the combination of DRT message design and source expertise produced several message conditions that were effective at decreasing tanning bed use intent. No combined message condition was effective at changing sunless tanner use intent. DRT message design alone did not produce results, nor did source expertise. Tanning attitudes were influenced by reference groups, and perceived norms about tanning predicted individual‘s tanning bed use for several reference groups. In addition, there was an interaction between benefits and threats of tanning.
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Tanning bed use, deviance regulation theory, and source factorsHead, Katharine J. 15 May 2009 (has links)
Tanning bed use, especially among young, white females, has become a serious health problem in the United States. Those who use tanning beds value a tanned appearance; thus, one possible way to get individuals to stop using tanning beds is to persuade them to begin using an alternative method: a sunless tanner. This study sought to use persuasive messages to encourage individuals to both stop using tanning beds and start using a sunless tanner. Deviance Regulation Theory (DRT) was used to design three messages, and source expertise was manipulated (high and low). In addition, attitudes, perceived norms, benefits and threats about tanning were examined. Results indicate that the combination of DRT message design and source expertise produced several message conditions that were effective at decreasing tanning bed use intent. No combined message condition was effective at changing sunless tanner use intent. DRT message design alone did not produce results, nor did source expertise. Tanning attitudes were influenced by reference groups, and perceived norms about tanning predicted individual‘s tanning bed use for several reference groups. In addition, there was an interaction between benefits and threats of tanning.
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A comparison of the perceived credibility and usefulness of beef cattle magazine articles with and without photographsSandlin, James Dale 15 May 2009 (has links)
This thesis explored the credibility and usefulness of beef cattle magazine articles
with and without photographs perceived by students at a Southern land-grant institution.
The thesis also explored the use of alternate forms of repeated measure to determine if a
relationship existed in instrumentation when a photograph was presented first or
presented second. The study found that credibility was perceived to be greater when
photographs were present in an article. The study found that usefulness was perceived to
be greater when photographs were not present in an article. The study found a
relationship between credibility and usefulness when presented with and without
photographs. The study found that perceived credibility was greater when an article
presented with a photograph was presented first. The study also found that perceived
usefulness was greater when an article without photograph was presented first. The
findings of this study indicated that magazines should take these factors into account
when a desired outcome is to increase editorial credibility and increase the effectiveness
of the message.
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The study of Completeness and Credibility of Health Information on the World Wide WebHsieh, Pai-ta 05 February 2009 (has links)
none
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Estimation of structural parameters for panel data in credibility contextLo, Chi-ho. January 2005 (has links)
Thesis (M. Phil.)--University of Hong Kong, 2005. / Title proper from title frame. Also available in printed format.
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