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  1.  59
    A Normative Framework for Argument Quality: Argumentation Schemes with a Bayesian Foundation.Ulrike Hahn & Jos Hornikx - 2016 - Synthese 193 (6):1833-1873.
    In this paper, it is argued that the most fruitful approach to developing normative models of argument quality is one that combines the argumentation scheme approach with Bayesian argumentation. Three sample argumentation schemes from the literature are discussed: the argument from sign, the argument from expert opinion, and the appeal to popular opinion. Limitations of the scheme-based treatment of these argument forms are identified and it is shown how a Bayesian perspective may help to overcome these. At the same time, (...)
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  2.  39
    Reasoning and Argumentation: Towards an Integrated Psychology of Argumentation.Jos Hornikx & Ulrike Hahn - 2012 - Thinking and Reasoning 18 (3):225 - 243.
    Although argumentation plays an essential role in our lives, there is no integrated area of research on the psychology of argumentation. Instead research on argumentation is conducted in a number of separate research communities that are spread across disciplines and have only limited interaction. With a view to bridging these different strands, we first distinguish between three meanings of the word ?argument?: argument as a reason, argument as a structured sequence of reasons and claims, and argument as a social exchange. (...)
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  3.  48
    How Many Laypeople Holding a Popular Opinion Are Needed to Counter an Expert Opinion?Jos Hornikx, Adam J. L. Harris & Jordy Boekema - 2018 - Thinking and Reasoning 24 (1):117-128.
    ABSTRACTIn everyday situations, people regularly receive information from large groups of people and from single experts. Although lay opinions and expert opinions have been studied extensively in isolation, the present study examined the relationship between the two by asking how many laypeople are needed to counter an expert opinion. A Bayesian formalisation allowed the prescription of this quantity. Participants were subsequently asked to assess how many laypeople are needed in different situations. The results demonstrate that people are sensitive to the (...)
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  4.  47
    Comparing the Actual and Expected Persuasiveness of Evidence Types: How Good Are Lay People at Selecting Persuasive Evidence? [REVIEW]Jos Hornikx - 2008 - Argumentation 22 (4):555-569.
    Whereas there are many publications in which argumentation quality has been defined by argumentation theorists, considerably less research attention has been paid to lay people’s considerations regarding argument quality. Considerations about strong and weak argumentation are relevant because they can be compared with actual persuasive success. Argumentation theorists’ conceptions have to some extent been shown to be compatible with actual effectiveness, but for lay people such compatibility has yet to be determined. This study experimentally investigated lay people’s expectations about the (...)
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  5.  10
    Evidence Quality and Persuasiveness: Germans Are Not Sensitive to the Quality of Statistical Evidence.Jos Hornikx & Margje ter Haar - 2013 - Journal of Cognition and Culture 13 (5):483-501.
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  6.  7
    The Effects of Cultural Adaptation in Fundraising Letters: The Case of Help-Self and Help-Others Appeals in a Feminine Culture.Denise Thijzen, Berna Hendriks & Jos Hornikx - 2010 - Communications 35 (1):93-110.
    Gender has been shown to affect the persuasiveness of help-self and help-others appeals in fundraising: men prefer help-self appeals, and women help-others appeals. This gender difference has been attributed to world-view differences. Women have a care-oriented world-view and men a justice-oriented world-view – at least in masculine cultures. In feminine cultures, however, both men and women have a care-oriented world-view. The present study investigated whether in the feminine, Dutch culture the culturally adapted help-others appeal was more persuasive than the culturally (...)
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