You'd Better Ask an Expert: Mitigating the Comprehensibility Effect on Laypeople's Decisions About Science‐Based Knowledge Claims

Research shows that laypeople rely more on their capabilities to make decisions about science‐based knowledge claims after reading comprehensible compared with less comprehensible topic information. This can be problematic, because complex science‐based issues usually cannot be understood fully without experts' further advice. The present study investigated whether making readers aware of the ‘epistemic topic complexity’ of an issue (i.e., the extent of existing topic knowledge, the complexity of relationships between concepts, and the existence of multiple expert perspectives) can mitigate this influence of comprehensibility. Undergraduate students read comprehensible or less comprehensible health texts with topic knowledge being described as complex, uncomplex, or not described at all. They reported whether they agreed with the claim and would rely on their decision. Results showed that after reading comprehensible information, participants' reliance on their decision increased less when they considered topic knowledge to be complex. Practical implications of the findings are discussed. Copyright © 2014 John Wiley & Sons, Ltd.     

Knowing Who Knows: Laypersons' Capabilities to Judge Experts' Pertinence for Science Topics

Because modern societies are built on elaborate divisions of cognitive labor, individuals remain laypersons in most knowledge domains. Hence, they have to rely on others' expertise when deciding on many science‐related issues in private and public life. Even children already locate and discern expertise in the minds of others (e.g., Danovitch & Keil, 2004). This study examines how far university students accurately judge experts' pertinence for science topics even when they lack proficient knowledge of the domain. Participants judged the pertinence of experts from diverse disciplines based on the experts' assumed contributions to texts adapted from original articles from Science and Nature. Subjective pertinence judgments were calibrated by comparing them with bibliometrics of the original articles. Furthermore, participants' general science knowledge was controlled. Results showed that participants made well‐calibrated pertinence judgments regardless of their level of general science knowledge.     

Trust and Involvement as Higher-Order Factors of General Attitudes Towards Politics. Testing a Structural Model Across 26 Democracies

Interindividual differences in how people think and feel about politics have been investigated for decades. However, the great number of attitudinal concepts that has been developed to describe these differences is likely to distract from their conceptual overlap and dimensional structure. In addition, not much is known about the cross-cultural invariance of their interrelation. We propose that attitudes towards politics can be structured by two broad higher-order factors, a factor of general political involvement and a factor of general political trust. In two studies (N₁ = 767; N₂ = 29,018), including representative samples from 26 democracies, we first conduct several confirmatory factor analyses (CFA) to show that the higher-order model is a well-fitting and parsimonious alternative to a baseline model without higher-order factors in most samples. Second, we present evidence from multigroup CFA that the overall patterns of factor loadings are the same across all 26 countries. We interpret this structural equivalence across different democracies as support for the assumption that general political involvement and general political trust reflect basic orientations towards politics that are based on (1) demands of democratic political systems and (2) universal principles in human trait structure.     

How to refer to ‘diabetes’? Language in online health advice

The adaptation of vocabulary between communication partners, i.e. the lexical entrainment phenomenon, is well documented. This study investigates whether the phenomenon can also be found in computer‐mediated communication between experts and laypersons. The respondents, who are medical experts (n = 46), answered to fictitious patients' queries on health problems. Language technicality within patients' queries was manipulated. One version contained certain concepts in everyday language, the other in technical language. Do experts adapt the vocabulary in their replies to that in the inquiry? Detailed analyses provide evidence that experts not only use the inquiry vocabulary, but also adapt the content of their answers to the technicality of the inquiry. Surprisingly, though queries differ in the use of vocabulary experts attributed very similar prior knowledge to the fictitious patient while providing them with very different replies. The results are discussed with respect to the implications for health counselling and for theoretical assumptions about adaptation in net‐based discourse. Copyright © 2005 John Wiley & Sons, Ltd.     

Expertise and estimating what other people know: the influence of professional experience and type of knowledge

There is ample evidence that estimations of what other people know are often biased in the direction of one's own knowledge. Yet, it is still unclear if this bias is influenced by expertise. In Study 1, computer experts estimated the distribution of Internet concepts and general knowledge concepts among students. These estimations were compared with norm values and with estimations obtained from a sample of laypersons. Laypersons showed a stronger bias than experts. Study 2 revealed that knowledge estimations can be influenced by labeling knowledge items as specialist knowledge. The results are suggestive of ways in which communication between experts and laypersons could be enhanced. Especially in asynchronous communication situations, as for example in the use of e-mail based hot lines, if experts are to communicate effectively, they must make accurate assumptions about laypersons' knowledge of the topic.     

Internet experts' planning of explanations for laypersons: a Web experimental approach in the Internet domain

How flexible are Internet experts in taking the perspective of laypersons? A Web experimental approach is presented that examines the Internet experts' perspective taking in planning explanations for laypersons. The Internet was the topic to be communicated and it also provided the means to implement the experimental method. Participants rated how extensively they would treat some specific concepts when explaining a topic such as the WWW. Independent variables were the addressee's intention, their level of domain knowledge, and the importance of the concepts to be evaluated. The results show that the experts preferred planning strategies that integrated all three types of information. Though their planning decisions were mainly guided by conceptual constraints, the Internet experts also took into account information about the addressee's intention and prior knowledge.     

Changing epistemological beliefs: The unexpected impact of a short‐term intervention

Background Previous research has shown that sophisticated epistemological beliefs exert a positive influence on students' learning strategies and learning outcomes. This gives a clear educational relevance to studies on the development of methods for promoting a change in epistemological beliefs and making them more sophisticated. Aims To investigate the potential for influencing domain‐specific epistemological beliefs through a short instructional intervention. Sample On the basis of their performance on a preliminary survey of epistemological beliefs, 58 students at a German university (87.7% females) with a mean age of 21.86 years (SD = 2.88) were selected. Half of them had more naive beliefs and the other half had more sophisticated ones. Methods Participants were randomly assigned to one of two groups: one whose epistemological beliefs were challenged through refutational epistemological instruction or another receiving non‐challenging informational instruction. The treatment effect was assessed by comparing pre‐ and post‐instructional scores on two instruments tapping different layers of epistemological beliefs (DEBQ and CAEB). Data were subjected to factor analyses and analyses of variance. Results According to the CAEB, the naive group receiving the refutational epistemological instruction changed towards a more sophisticated view, whereas the sophisticated students receiving the informational instruction changed towards an unintended, more naive standpoint. According to the DEBQ, all research groups except the naive refutational group revealed changes towards a more naive view. Conclusions This study indicates the possibility of changing domain‐specific epistemological beliefs through a short‐term intervention. However, it questions the stability and elaborateness of domain‐specific epistemological beliefs, particularly when domain knowledge is shallow.     

Justice for the People? How Justice Sensitivity Can Foster and Impair Support for Populist Radical-Right Parties and Politicians in the United States and in Germany

Many people argue that support for populist radical-right political agents is motivated by people feeling “left behind” in globalized Western democracies. Empirical research supports this notion by showing that people who feel personally or collectively deprived are more likely to hold populist beliefs and anti-immigration attitudes. Our aim was to further investigate the psychological link between individuals' justice concerns and their preferences for populist radical-right political agents. We focused on stable individual differences in self-oriented and other-oriented justice concerns and argue that these should have opposing correlations with preferences for populist radical-right parties. We tested our hypotheses in two national samples, one from the United States (N = 1500) and one from Germany (N = 848). Sensitivity to injustice towards oneself enhanced the likelihood of preferring Trump (United States) and Alternative für Deutschland (AfD) (Germany) via increased anti-immigration attitudes and increased populist attitudes. Sensitivity to injustice towards others reduced the likelihood of preferring Trump and AfD via decreased anti-immigration attitudes. We discuss our findings in regard to how stable individual differences in the evaluation of fairness can motivate intra- and interpersonal political conflicts in modern w estern societies and how politics and mass media can fuel these conflicts.