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The influence of scientese on ad credibility and ad liking

Current advertising for beauty products makes abundant use of scientese, scientific jargon in statistical and/or verbal form. As of yet, no study has examined the impact of scientese in an advertising context. Therefore, an experiment investigates the credibility and liking of ads for different beauty products with and without scientese. The study assesses effects in a culture likely to be susceptible to scientese because of its large power distance and high uncertainty avoidance (Wallonia), and in a culture less likely to be susceptible to scientese (the Netherlands). Dutch (n = 72) and Walloon (n = 60) judged different ads for beauty products with or without different forms of scientese. In both cultures, ads with scientese were found to be more credible but less liked than ads without scientese.

  • Mulken, M. van, & Hornikx, J. (2011). The influence of scientese on ad credibility and ad liking: A cross-cultural investigation of ads for beauty products. Information Design Journal, 19 (2), 92-102. [pdf]
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Persuasive evidence in India

Research on persuasive evidence types has been limited to Western cultures. Because Western systems of thought are claimed to be fundamentally different from Eastern systems of thought, the persuasiveness of evidence types was explored in one Eastern culture. Indians (N = 183) judged claims supported by different evidence types.  Statistical, expert, and causal evidence were found to be equally persuasive as support for claims.  Indians also appeared sensitive to evidence quality that was manipulated according to Western norms for reasonable argumentation: normatively strong evidence was more persuasive than normatively weak evidence.  Findings are compared to results from studies conducted in Western cultures.

  • Hornikx, J. & Best, J. de (2011). Persuasive evidence in India: An investigation of the impact of evidence types and evidence quality. Argumentation and Advocacy, 47 (4), 246-257. [pdf]
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Variations of standpoint explicitness in advertising

Empirical research has demonstrated that variation in standpoint explicitness matters. In several research reports, explicit articulations of a standpoint or conclusion have been compared to more implicit articulations. Meta-analyses of such reports (Cruz, 1998; O’Keefe, 1997, 2002) have shown that messages with explicitly stated standpoints are more persuasive than messages without such standpoints. Such effects were not found for advertising messages, for which the conclusion – buy this product – seems relatively straightforward, regardless of the articulation of the conclusion (Cruz, 1998). There are different ways in which explicit conclusions may be articulated, one of which is the use of probability markers. Advertising research has compared hedges (which mark a standpoint as moderately probable) and pledges (which mark a standpoint as very probable). In this study, it was investigated whether the reputation of the brand affects the persuasiveness of hedges and pledges. Based on a study conducted by Goldberg and Hartwick (1990), it was expected that hedges would be more persuasive for low-reputation brands, whereas pledges would be more persuasive for high-reputation brands. This expectation was put to a test in an experiment.

  • Hornikx, J. (2011). Variations of standpoint explicitness in advertising: An experimental study on probability markers. In F. H. van Eemeren, B. Garssen, D. Godden, & G. Mitchell (Eds.), Proceedings of the seventh conference of the International Society for the Study of Argumentation (pp. 824-830). Amsterdam: Sic Sat. [pdf]
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Epistemic authority of professors and researchers

Teachers and researchers are considered epistemic authorities that provide reliable information if that information is relevant to their discipline. Students differentiate between relevant and irrelevant disciplines when assessing teachers’ expertise. In this paper, it is investigated whether students’ cultural-educational background plays a role in this differentiation between relevant and irrelevant disciplines. In large power distance cultures such as France, students learn to respect and obey their teacher, whereas in smaller power distance cultures such as the Netherlands, the relationships between students and teachers are more informal. Therefore, French students may be less sensitive to the actual discipline when assessing a source’s expertise. In an experiment, it was empirically tested whether French students perceived smaller differences than Dutch students between fictitious professors and researchers who put forward information that is or is not related to their own discipline. Results showed that the French participants indeed differentiated to a much lesser degree between professors and researchers with a relevant and an irrelevant discipline than the Dutch participants. Further analyses indicated that students’ obedience partially mediated this effect of nationality on the difference between relevant and irrelevant disciplines. This study underlines the role that cultural-educational background can play in the assessments of epistemic authorities.

  • Hornikx, J. (2011). Epistemic authority of professors and researchers: Differential perceptions by students from two cultural-educational systems. Social Psychology of Education, 14 (2), 169-183.

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Conducting research on international advertising

International research teams that are knowledgeable about the cultures under investigation are considered a prerequisite for sound research. By virtue of a meta-analytic review, this study empirically compared international and national research teams that have conducted experiments on the effectiveness of cultural value adaptation in advertising. Results show that, although the composition of research teams does not make for dependable differences in the outcomes of these experiments, international research teams may be more capable than national teams of designing pairs of culturally-adapted-versus-unadapted advertisements. It may not matter much, however, whether the international team includes a representative of the audience’s culture.

  • Hornikx, J., & O’Keefe, D. J. (2011). Conducting research on international advertising: The roles of cultural knowledge and international research teams. Journal of Global Marketing, 24 (2), 152-166. [link]
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Review of “Fallacies and judgments of reasonableness: Empirical research concerning the pragma-dialectical discussion rules”

One of the core concepts in argumentation theory are fallacies, often considered to be arguments that seem valid but that are invalid. Argumentation scholars and philosophers, such as Aristotle, Locke and Hamblin, have approached fallacies from a theoretical and non-empirical perspective. Such an approach has enabled the field of argumentation theory to intensively reflect on the concept of fallacies. A disadvantage of such an approach, however, is that it is naturally limited to the views and knowledge of argumentation theorists themselves. How would ordinary language users respond to fallacies? Would these laymen also consider fallacies to be unreasonable? Frans van Eemeren, Bart Garssen and Bert Meuffels have addressed this question by conducting an impressive set of experiments in the course of 10 years, involving more than 1900 participants. In Fallacies and judgments of reasonableness, they introduce these studies, present their results, and conclude that laymen’s conceptions of reasonableness are very similar to the theoretical conceptions of reasonableness in their own pragma-dialectical approach to argumentation.

  • Hornikx, J. (2010). Review of “Fallacies and judgments of reasonableness: Empirical research concerning the pragma-dialectical discussion rules” by Frans H. van Eemeren, Bart Garssen and Bert Meuffels. Information Design Journal, 18 (2), 175-177. [pdf]
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English or a local language in advertising?

Studies have demonstrated frequent use of English in international advertising, but little is known about people’s preference for English versus local languages. This paper empirically investigated the difficulty of the English language as a possible determinant of people’s preference for English or the local language. In an experiment, Dutch participants judged a number of car ads with English slogans that were pre-tested as easy or difficult to understand. They were subsequently asked to express a preference for either the English slogan or the Dutch equivalent. Results showed that easy-to-understand English slogans were appreciated better than difficult-to-understand English slogans. Moreover, the degree of difficulty in comprehension of the English slogans affected participants’ preference for English. English was preferred to Dutch when it was easy to understand; when it was difficult to understand, English was appreciated as much as the Dutch equivalent. In conclusion, the experiment provides empirical support for the role of comprehension in the preference for and appreciation of English in international advertising.

  • Hornikx, J., Meurs, F. van, & Boer, A. de (2010). English or a local language in advertising? The appreciation of easy and difficult English slogans in the Netherlands. Journal of Business Communication, 47 (2), 169-188. [pdf]
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The effects of cultural adaptation in fundraising letters

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 unadapted help-self appeal for both men and women (N = 166). Results showed that the culturally adapted help-others appeal was the most persuasive appeal for men and women, who were both found to have a relatively care-oriented world-view.

  • Hornikx, J., Hendriks, B., & Thijzen, D. (2010). The effects of cultural adaptation in fundraising letters: The case of help-self and help-others appeals in a feminine culture. Communications, the European Journal of Communication Research, 35 (1), 93-110. [pdf]
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Adapting consumer advertising appeals to cultural values

aicaIt is a truism that successful persuasive messages should be adapted to audience values. A substantial research literature—not previously systematically reviewed—has examined whether advertisements with appeals adapted to the audience’s important cultural values (e.g., individualism for North Americans) are more persuasive and better liked than appeals that are unadapted to such values. A meta-analytic review of that research finds that adapted ads are only slightly more persuasive (mean r = .073, 67 cases) and slightly better liked (mean r = .082, 66 cases) than unadapted ads. Moreover, these effects were mainly limited to North Americans and Asians and to values related to individualism-collectivism. In this chapter, we discuss explanations for these results and identify directions for future research.

  • Hornikx, J., & O’Keefe, D. J. (2009). Adapting consumer advertising appeals to cultural values: A meta-analytic review of effects on persuasiveness and ad liking. Annals of the International Communication Association, 33 (1), 38-71. [pdf, link]
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Review of “Persuasive messages: The process of influence”

We encounter persuasive messages everywhere at every moment of the day: in the newspaper in the morning, on television during lunch, at a business meeting in the afternoon, or around the dinner table with our families. Not only are we targets of other people’s attempts to persuade us, we also try to persuade other people. Being familiar with persuasion, however, does not make us experts in the art of persuasion already. There is much to learn about the process of influence, about the messages that are most likely to be effective, and about the factors that we should pay attention to. Persuasive messages: The process of influence introduces its readers to these matters. The authors of this textbook, William and Pamela Benoit, call it “a guide to successful persuasion” (xii). The authors want to offer their readers practical advice on designing persuasive messages. They have succeeded in their mission, in particular because their advice is firmly grounded in classic and current theories, and in empirical research findings.

  • Hornikx, J. (2008). Review of “Persuasive messages: The process of influence” by William Benoit and Pamela Benoit. Information Design Journal, 16 (2), 159-161. [pdf]