Misinformation and Its Correction: Continued Influence and Successful Debiasing

Social identity threat motivates science-discrediting online comments

Experiencing social identity threat from scientific findings can lead people to cognitively devalue the respective findings. Three studies examined whether potentially threatening scientific findings motivate group members to take action against the respective findings by publicly discrediting them on the Web. Results show that strongly (vs. weakly) identified group members (i.e., people who identified as "gamers") were particularly likely to discredit social identity threatening findings publicly (i.e., studies that found an effect of playing violent video games on aggression). A content analytical evaluation of online comments revealed that social identification specifically predicted critiques of the methodology employed in potentially threatening, but not in non-threatening research (Study 2). Furthermore, when participants were collectively (vs. self-) affirmed, identification did no longer predict discrediting posting behavior (Study 3). These findings contribute to the understanding of the formation of online collective action and add to the burgeoning literature on the question why certain scientific findings sometimes face a broad public opposition.

Information evaluation and the individual’s cognitive state

This paper explores, on the basis of their cognitive states, the likely inclinations of a group of young people in England with regard to evaluating Web-based information. The work draws on data submitted via an online questionnaire by 82 16–18 year-olds. Frequency counts were generated and each participant received a ‘trust disposition’ score according to their questionnaire responses. The results present a mixed picture in terms of the probable tendencies of young people to evaluate information. The participants’ data in relation to some of the issues addressed in the questionnaire suggest that they may be inclined to accept much of what they see without challenging it, although few of their overall trust disposition scores are significantly high.

Overcoming healthcare workers’ vaccine refusal – competition between egoism and altruism

Binary file ES_Abstracts_Final_ECDC.txt matches

Social media targeting of health messages. A promising approach for research and practice

In their contribution, Remschmidt and colleagues (1) put forward an innovative approach for recruiting female, German study participants from diverse social and ethnical backgrounds to assess their knowledge, attitudes, and behaviors regarding HPV vaccination. The approach involves placing advertisements on the social media platform Facebook that specify tags for not only the sought after socio-demographic characteristics (age, gender) but also self-relevant aspects of the target group. These tags determine which Facebook users will see the ad. By sequentially adjusting the tags, the researchers were able to recruit different sub-populations, resulting in a final sample similar to a representative German sample for a particular age group.

Detecting misinformation in online social networks using cognitive psychology

The paper explores the use of concepts in cognitive psychology to evaluate the spread of misinformation, disinformation and propaganda in online social networks. Analysing online social networks to identify metrics to infer cues of deception will enable us to measure diffusion of misinformation. The cognitive process involved in the decision to spread information involves answering four main questions viz consistency of message, coherency of message, credibility of source and general acceptability of message. We have used the cues of deception to analyse these questions to obtain solutions for preventing the spread of misinformation. We have proposed an algorithm to effectively detect deliberate spread of false information which would enable users to make informed decisions while spreading information in social networks. The computationally efficient algorithm uses the collaborative filtering property of social networks to measure the credibility of sources of information as well as quality of news items. The validation of the proposed methodology has been done on the online social network `Twitter’.

Brain substrates of recovery from misleading influence

Humans are strongly influenced by their environment, a dependence that can lead to errors in judgment. Although a rich literature describes how people are influenced by others, little is known regarding the factors that predict subsequent rectification of misleading influence. Using a mediation model in combination with brain imaging, we propose a model for the correction of misinformation. Specifically, our data suggest that amygdala modulation of hippocampal mnemonic representations, during the time of misleading social influence, is associated with reduced subsequent anterior-lateral prefrontal cortex activity that reflects correction. These findings illuminate the process by which erroneous beliefs are, or fail to be, rectified and highlight how past influence constrains subsequent correction.

Motivational and Cognitive Predictors of the Propensity to Intervene Against Intimate Partner Violence

A survey using a community-based sample (N = 650) was conducted to identify motivational and cognitive predictors of individuals' propensity to intervene against intimate partner violence (IPV). A hierarchical regression analysis showed that motivational factors accounted for the greatest proportion of the variance in self-reported propensity. Specifically, personal norm (i.e., an individual's felt obligation to intervene) was the strongest individual predictor, followed by affective response (i.e., the extent to which an individual responds to IPV with negative emotions). Although cognitive factors explained only a small portion of the variance, the propensity to intervene was significantly higher for respondents who perceived IPV as a prevalent issue and who did not view the perpetrator as responsible for the solution of IPV. The findings suggest that attempts to facilitate public intervention should target specific, rather than general, aspects of public norms and beliefs about IPV.

Rising tides or rising stars?: Dynamics of shared attention on Twitter during media events

“Media events” generate conditions of shared attention as many users simultaneously tune in with the dual screens of broadcast and social media to view and participate. We examine how collective patterns of user behavior under conditions of shared attention are distinct from other “bursts” of activity like breaking news events. Using 290 million tweets from a panel of 193,532 politically active Twitter users, we compare features of their behavior during eight major events during the 2012 U.S. presidential election to examine how patterns of social media use change during these media events compared to “typical” time and whether these changes are attributable to shifts in the behavior of the population as a whole or shifts from particular segments such as elites. Compared to baseline time periods, our findings reveal that media events not only generate large volumes of tweets, but they are also associated with (1) substantial declines in interpersonal communication, (2) more highly concentrated attention by replying to and retweeting particular users, and (3) elite users predominantly benefiting from this attention. These findings empirically demonstrate how bursts of activity on Twitter during media events significantly alter underlying social processes of interpersonal communication and social interaction. Because the behavior of large populations within socio-technical systems can change so dramatically, our findings suggest the need for further research about how social media responses to media events can be used to support collective sensemaking, to promote informed deliberation, and to remain resilient in the face of misinformation.

[The role of the Internet in eliminating infectious diseases. Managing perceptions and misperceptions of vaccination]

BACKGROUND

The World Health Organization (WHO) has declared the elimination of measles as a global goal. According to the WHO, one critical challenge for countries such as Germany is managing perceptions and misperceptions about vaccination. Criticism and misinformation about vaccines are widespread, e.g., on the Internet, and they support the development of misperceptions, vaccine hesitancy, and fear. By contrast, owing to vaccination the actual incidence of measles is low and hardly anyone is familiar with measles as a severely infectious disease. This may lead to the incorrect perception of measles as a harmless children's disease. Education on the risks of infection and of vaccination should therefore be combined with effective debunking of misperceptions, both of which should govern the management of perceptions and misperceptions.

AIM

The objective of this contribution is to propose and discuss several approaches with respect to the Janus-like role of the Internet: On the one hand, it serves as a source of anti-vaccination misinformation and is therefore responsible for the development of misperceptions. On the other hand, it can serve as the ideal platform for health agencies to educate the public and to debunk misinformation.

CONCLUSION

This contribution suggests how an effective management of perceptions and misperceptions can take place on different levels of communication and how the Internet may be actively used to reach this goal. A collection of Internet links for patients and health-care personnel are recommended.

Hauntings, homeopathy, and the Hopkinsville Goblins: using pseudoscience to teach scientific thinking

With access to information ever increasing, it is essential that students acquire the skills to distinguish fact from fiction. By incorporating examples of pseudoscience into lectures, instructors can provide students with the tools needed to understand the difference between scientific and pseudoscientific or paranormal claims. We discuss examples involving psychics, ghosts, aliens, and other phenomena in relation to scientific thinking. In light of research literature demonstrating that presenting and dispelling scientific misconceptions in the classroom is an effective means of countering non-scientific or pseudoscientific beliefs, we provide examples of pseudoscience that can be used to help students acquire healthy skepticism while avoiding cynicism.

Effective messages in vaccine promotion: a randomized trial

OBJECTIVES

To test the effectiveness of messages designed to reduce vaccine misperceptions and increase vaccination rates for measles-mumps-rubella (MMR).

METHODS

A Web-based nationally representative 2-wave survey experiment was conducted with 1759 parents age 18 years and older residing in the United States who have children in their household age 17 years or younger (conducted June-July 2011). Parents were randomly assigned to receive 1 of 4 interventions: (1) information explaining the lack of evidence that MMR causes autism from the Centers for Disease Control and Prevention; (2) textual information about the dangers of the diseases prevented by MMR from the Vaccine Information Statement; (3) images of children who have diseases prevented by the MMR vaccine; (4) a dramatic narrative about an infant who almost died of measles from a Centers for Disease Control and Prevention fact sheet; or to a control group.

RESULTS

None of the interventions increased parental intent to vaccinate a future child. Refuting claims of an MMR/autism link successfully reduced misperceptions that vaccines cause autism but nonetheless decreased intent to vaccinate among parents who had the least favorable vaccine attitudes. In addition, images of sick children increased expressed belief in a vaccine/autism link and a dramatic narrative about an infant in danger increased self-reported belief in serious vaccine side effects.

CONCLUSIONS

Current public health communications about vaccines may not be effective. For some parents, they may actually increase misperceptions or reduce vaccination intention. Attempts to increase concerns about communicable diseases or correct false claims about vaccines may be especially likely to be counterproductive. More study of pro-vaccine messaging is needed.

School-based influenza vaccination: parents' perspectives

Background

School-age children are important drivers of annual influenza epidemics yet influenza vaccination coverage of this population is low despite universal publicly funded influenza vaccination in Alberta, Canada. Immunizing children at school may potentially increase vaccine uptake. As parents are a key stakeholder group for such a program, it is important to consider their concerns.

Purpose

We explored parents’ perspectives on the acceptability of adding an annual influenza immunization to the immunization program that is currently delivered in Alberta schools, and obtained suggestions for structuring such a program.

Participants

Forty-eight parents of children aged 5-18 years participated in 9 focus groups. Participants lived in urban areas of the Alberta Health Services Calgary Zone.

Findings

Three major themes emerged: Advantages of school-based influenza vaccination (SBIV), Disadvantages of SBIV, and Implications for program design & delivery. Advantages were perceived to occur for different populations: children (e.g. emotional support), families (e.g. convenience), the community (e.g. benefits for school and multicultural communities), the health sector (e.g. reductions in costs due to burden of illness) and to society at large (e.g. indirect conduit of information about health services, building structure for pandemic preparedness, building healthy lifestyles). Disadvantages, however, might also occur for children (e.g. older children less likely to be immunized), families (e.g. communication challenges, perceived loss of parental control over information, choices and decisions) and the education sector (loss of instructional time). Nine second-level themes emerged within the major theme of Implications for program design & delivery: program goals/objectives, consent process, stakeholder consultation, age-appropriate program, education, communication, logistics, immunizing agent, and clinic process.

Conclusions

Parents perceived advantages and disadvantages to delivering annual seasonal influenza immunizations to children at school. Their input gives a framework of issues to address in order to construct robust, acceptable programs for delivering influenza or other vaccines in schools.

The effects of anti-vaccine conspiracy theories on vaccination intentions

The current studies investigated the potential impact of anti-vaccine conspiracy beliefs, and exposure to anti-vaccine conspiracy theories, on vaccination intentions. In Study 1, British parents completed a questionnaire measuring beliefs in anti-vaccine conspiracy theories and the likelihood that they would have a fictitious child vaccinated. Results revealed a significant negative relationship between anti-vaccine conspiracy beliefs and vaccination intentions. This effect was mediated by the perceived dangers of vaccines, and feelings of powerlessness, disillusionment and mistrust in authorities. In Study 2, participants were exposed to information that either supported or refuted anti-vaccine conspiracy theories, or a control condition. Results revealed that participants who had been exposed to material supporting anti-vaccine conspiracy theories showed less intention to vaccinate than those in the anti-conspiracy condition or controls. This effect was mediated by the same variables as in Study 1. These findings point to the potentially detrimental consequences of anti-vaccine conspiracy theories, and highlight their potential role in shaping health-related behaviors.

Making decisions in a complex information environment: evidential preference and information we trust

BACKGROUND

Informed decision making requires that those individuals making health and health-care decisions understand the advantages and disadvantages associated with particular health options. Research and theory suggest factors that contribute to the decision-making process: data on the likelihood of risks and benefits, level of certainty about outcomes, familiarity with the health issue, characteristics of information sources and presentation, and patient values and beliefs. As the health information environment increases in complexity, it becomes important to understand how interactions among information sources, family, and friends may affect the processing of health information and choices and their alignment with available evidence.

ANALYSIS

This paper discusses the potential interactions among social networks, information sources and evidential preferences for health information as they influence health decisions. The role of family and friends who increasingly search for health information for others and the potential for information filtering influenced by second- or third-party attitudes and preferences is explored. Evidential preferences suggestive of the potential value of social math (creatively presented statistics) strategies for presenting data, the information-processing factors that may make personal experiences, anecdotes and testimonials that are often shared within social networks and may exert powerful influences on health decisions are examined in this article.

CONCLUSIONS

The paper concludes with recommendations for revised health-communication practices, health professional training to improve patient understanding in the clinical encounter, and directions for future research. Simple, direct, and socially relevant communications that avoid conflicts with the values and beliefs of the individual, as well as those of the family and social network, are recommended.

The role of conspiracist ideation and worldviews in predicting rejection of science

Background

Among American Conservatives, but not Liberals, trust in science has been declining since the 1970's. Climate science has become particularly polarized, with Conservatives being more likely than Liberals to reject the notion that greenhouse gas emissions are warming the globe. Conversely, opposition to genetically-modified (GM) foods and vaccinations is often ascribed to the political Left although reliable data are lacking. There are also growing indications that rejection of science is suffused by conspiracist ideation, that is the general tendency to endorse conspiracy theories including the specific beliefs that inconvenient scientific findings constitute a “hoax.”

Methodology/Principal findings

We conducted a propensity weighted internet-panel survey of the U.S. population and show that conservatism and free-market worldview strongly predict rejection of climate science, in contrast to their weaker and opposing effects on acceptance of vaccinations. The two worldview variables do not predict opposition to GM. Conspiracist ideation, by contrast, predicts rejection of all three scientific propositions, albeit to greatly varying extents. Greater endorsement of a diverse set of conspiracy theories predicts opposition to GM foods, vaccinations, and climate science.

Conclusions

Free-market worldviews are an important predictor of the rejection of scientific findings that have potential regulatory implications, such as climate science, but not necessarily of other scientific issues. Conspiracist ideation, by contrast, is associated with the rejection of all scientific propositions tested. We highlight the manifold cognitive reasons why conspiracist ideation would stand in opposition to the scientific method. The involvement of conspiracist ideation in the rejection of science has implications for science communicators.

Patient knowledge and recall of health information following exposure to "facts and myths" message format variations

OBJECTIVE

To assess if exposure to varying "facts and myths" message formats affected participant knowledge and recall accuracy of information related to influenza vaccination.

METHODS

Consenting patients (N=125) were randomized to receive one of four influenza related messages (Facts Only; Facts and Myths; Facts, Myths, and Refutations; or CDC Control), mailed one week prior to a scheduled physician visit. Knowledge was measured using 15 true/false items at pretest and posttest; recall accuracy was assessed using eight items at posttest.

RESULTS

All participants' knowledge scores increased significantly (p<0.05); those exposed to the CDC Control message had a higher posttest knowledge score (adjusted mean=11.18) than those in the Facts Only condition (adjusted mean 9.61, p=<0.02). Participants accurately recalled a mean of 4.49 statements (SD=1.98). ANOVA demonstrated significant differences in recall accuracy by condition [F(3, 83)=7.74, p<.001, η(2)=0.22].

CONCLUSION

Messages that include facts, myths, and evidence to counteract myths appear to be effective in increasing participants' knowledge. We found no evidence that presenting both facts and myths is counterproductive to recall accuracy.

PRACTICE IMPLICATIONS

Use of messages containing facts and myths may engage the reader and lead to knowledge gain. Recall accuracy is not assured by merely presenting factual information.

Addressing heterogeneous parental concerns about vaccination with a multiple-source model: a parent and educator perspective

Previous models of vaccine education have not addressed differences in levels and motives of vaccine concerns in parents. These differences may require changes in education approaches based on type of parental concern. Addressing vaccine concerns will require a multi-modal approach involving more than just a pediatrician or primary health care provider, as well as more than one educational approach.

NASA faked the moon landing--therefore, (climate) science is a hoax: an anatomy of the motivated rejection of science

Although nearly all domain experts agree that carbon dioxide emissions are altering the world's climate, segments of the public remain unconvinced by the scientific evidence. Internet blogs have become a platform for denial of climate change, and bloggers have taken a prominent role in questioning climate science. We report a survey of climate-blog visitors to identify the variables underlying acceptance and rejection of climate science. Our findings parallel those of previous work and show that endorsement of free-market economics predicted rejection of climate science. Endorsement of free markets also predicted the rejection of other established scientific findings, such as the facts that HIV causes AIDS and that smoking causes lung cancer. We additionally show that, above and beyond endorsement of free markets, endorsement of a cluster of conspiracy theories (e.g., that the Federal Bureau of Investigation killed Martin Luther King, Jr.) predicted rejection of climate science as well as other scientific findings. Our results provide empirical support for previous suggestions that conspiratorial thinking contributes to the rejection of science. Acceptance of science, by contrast, was strongly associated with the perception of a consensus among scientists.

Privacy and anonymity challenges when collecting data for public health purposes

Two contemporary problems face public health professionals in collecting data from health care providers: the de-identification of geospatial information in a manner that still allows meaningful analysis, and ensuring that provider performance data (e.g., infection or screening rates) is complete and accurate. In this paper, we discuss new methods for de-identifying geographic information that will allow useful de-identified data to be disclosed to public health. In addition, we propose privacy preserving mechanisms that will likely encourage providers to disclose complete and accurate data. However, this must be accompanied by steps to grow trust between the providers and public health.

Reporting health communication activities for the prevention and control of communicable diseases in Europe

Health communication is part of the public health response to the significant continuing threat of communicable diseases in Europe. However, the nature and extent of health communication activities in the context of Europe aimed at the prevention and control of communicable diseases is currently unknown. This severely restricts capacity development as neither strengths nor gaps in knowledge and practice are evident and therefore cannot be addressed. This article reports on the initial phase of a research project aimed at supporting the optimal use and development of health communication activities in the European Union and the European Economic Area. The study used a mixed-methods design-an e-survey and telephone interviews-with participants from 30 countries to identify activities, followed by an opportunistic group interview with 15 key stakeholders to identify perceived needs of public health bodies in relation to identified gaps. Results indicate that health communication activities are not clearly delineated in national public health structures and policies, there is an emphasis on crisis communication, and limited evaluation of activities and education and training opportunities for health communication are required. The facilitation of partnership working with a forum for knowledge exchange between Member States would enhance efficacious health communication.

Common (mis)beliefs about memory: a replication and comparison of telephone and Mechanical Turk survey methods

Incorrect beliefs about memory have wide-ranging implications. We recently reported the results of a survey showing that a substantial proportion of the United States public held beliefs about memory that conflicted with those of memory experts. For that survey, respondents answered recorded questions using their telephone keypad. Although such robotic polling produces reliable results that accurately predicts the results of elections, it suffers from four major drawbacks: (1) telephone polling is costly, (2) typically, less than 10 percent of calls result in a completed survey, (3) calls do not reach households without a landline, and (4) calls oversample the elderly and undersample the young. Here we replicated our telephone survey using Amazon Mechanical Turk (MTurk) to explore the similarities and differences in the sampled demographics as well as the pattern of results. Overall, neither survey closely approximated the demographics of the United States population, but they differed in how they deviated from the 2010 census figures. After weighting the results of each survey to conform to census demographics, though, the two approaches produced remarkably similar results: In both surveys, people averaged over 50% agreement with statements that scientific consensus shows to be false. The results of this study replicate our finding of substantial discrepancies between popular beliefs and those of experts and shows that surveys conducted on MTurk can produce a representative sample of the United States population that generates results in line with more expensive survey techniques.

Communicating with parents about vaccination: a framework for health professionals

BACKGROUND

A critical factor shaping parental attitudes to vaccination is the parent's interactions with health professionals. An effective interaction can address the concerns of vaccine supportive parents and motivate a hesitant parent towards vaccine acceptance. Poor communication can contribute to rejection of vaccinations or dissatisfaction with care. We sought to provide a framework for health professionals when communicating with parents about vaccination.

METHODS

Literature review to identify a spectrum of parent attitudes or 'positions' on childhood vaccination with estimates of the proportion of each group based on population studies. Development of a framework related to each parental position with determination of key indicators, goals and strategies based on communication science, motivational interviewing and valid consent principles.

RESULTS

Five distinct parental groups were identified: the 'unquestioning acceptor' (30-40%), the 'cautious acceptor' (25-35%); the 'hesitant' (20-30%); the 'late or selective vaccinator' (2-27%); and the 'refuser' of all vaccines (<2%). The goals of the encounter with each group will vary, depending on the parents' readiness to vaccinate. In all encounters, health professionals should build rapport, accept questions and concerns, and facilitate valid consent. For the hesitant, late or selective vaccinators, or refusers, strategies should include use of a guiding style and eliciting the parent's own motivations to vaccinate while, avoiding excessive persuasion and adversarial debates. It may be necessary to book another appointment or offer attendance at a specialised adverse events clinic. Good information resources should also be used.

CONCLUSIONS

Health professionals have a central role in maintaining public trust in vaccination, including addressing parents' concerns. These recommendations are tailored to specific parental positions on vaccination and provide a structured approach to assist professionals. They advocate respectful interactions that aim to guide parents towards quality decisions.