Thesis (Ph. D.)--Ohio State University, 2007. / Title from first page of PDF file. Includes bibliographical references (p. 133-139).

Thesis (M.A.) University of Missouri-Columbia, 2006. / The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on August 24, 2007) Includes bibliographical references.

Thesis (Ph. D.)--Texas State University-San Marcos, 2006. / Vita. Appendix: leaves 102-102. Includes bibliographical references (leaves 106-112).

The global health system is ill prepared to handle communicable health crises, much less effectively communicate about them, as evidenced by the West African Ebola outbreak. Although some critics have argued that the delay in international response contributed to the fast spread of the disease, others place greater blame on local cultural practices. The current study investigated how risk/crisis communication was produced, deployed, and received. This is particularly critical as the World Health Organization guidance on crisis/risk communication is not based on systematic evidence-based research Again, risk communication on communicable diseases is still relatively new and the body of research lacks both rigorous empirical evidence and evaluation research on event-specific risk communication efforts. Guided by the protection motivation theory and social mobilization theory, and using a comparative case study approach, this study sought to examine how crisis risk communication was undertaken and received in Liberia and Ghana and the implications for health crisis risk communication. Data was collected via interviews with communication and social mobilization team representatives in the two countries, document reviews, surveys of a cross section of inhabitants in Margibi and Shai Osudoku districts, and focus group discussions with purposively selected participants in the two countries. The study finds that expert-led top-bottom communication interventions used at the start of the outbreak were ineffective in getting target audiences to make the recommended behavior changes in Liberia. Messages developed induced fear rather than action. Furthermore, one in five respondents today, cannot identify the main signs and symptoms of Ebola. Again, the more worried people were about Ebola, the more vulnerable they felt. Finally, respondents moved through a cycle from equilibrium to defense to protection and then back to equilibrium as they sought to make sense of the disease and the communication they received about Ebola. It is recommended that risk communication include bottom-up community-led communication approaches and systems that are embedded within community culture and reality and used by community members. Again, the research challenged the assumption in risk perception studies that increasing knowledge and self-efficacy lowers risk perception thus suggesting the need for further studies in this area. / 10000-01-01

This thesis explores how social networking sites are changing the way individuals socialize in everyday life, and how users mediate this social media. The hypothesis explored is that Facebook user’s perception of risk, when using the site, is related to how they frame the technology. Drawing on conceptual and theoretical tools from science studies and the sociologies of friendship, risk and surveillance, interview data is collected and analysed in order to identify the dynamics that structure Facebook use. It is concluded not only that, as hypothesized, participant’s awareness and perception of risk is based upon their framing of the social networking technology, but also that the framing processes arise from the technosocial hybrid nature of Facebook. That is to say, it is not exclusively based on technological possibility or on existing social practices but instead by a constant balance between the two.

Background: Radon is a high impact environmental pollutant and is the second leading cause of lung cancer in Canada. Despite the gravity of the health risk, residents have inadequate awareness and have taken minimum preventive actions. The success of any population-level health awareness program is contingent on the views and actions of key decision makers at the household level. People's perceptions of the risk should inform health communication messaging that aims to motivate them to take preventive measures. The objective of this study was to measure the quantifiable associations and predictions between perceptions of radon health risk and their preventive actions; to explore and examines the social determinants that enable and hinder the adoption of preventive measures. Additionally, the best effective radon control systems for both the new and existing houses and relevant policy implications have been examined. Methods: A mixed methods study consisting of surveys (n=557) and qualitative interviews (n=35) was conducted with both homeowners and tenants of Ottawa-Gatineau areas. Descriptive, correlation and regression analyses addressed the quantitative research questions. Thematic, inductive analysis identified themes in the qualitative data. A mixed methods analysis triangulate both results. A registered systematic review of radon interventions around the world was conducted and radon policy analysis was done by applying interdisciplinary frameworks. Results: Residents’ perceptions of radon health risk, smoking at home, social influence, and care for family significantly correlated with their intention to test for radon; the same variables predicted their protection behaviours. Residents obtained information on radon from the media, individual search, workplace and social networks. Residents who had dual - cognitive and emotional awareness of the risk, were motivated enough to take action. Having an understanding of the risk, caring for family, knowing others who contracted lung cancer and being financially capable were enablers for action. Obstacles included lack of awareness, cost of mitigation, lack of home ownership and potential stigma in selling the house. Residents attributed primary responsibility to public agencies for disseminating information and suggested incentivizing and mandating actions to promote preventive measures. Indoor radon is best controlled by installing an active SSDS with additional measures to seal any entry points in the foundation. The policy analysis generated a list of recommendations that can be implemented through multisectoral systems level actions to address the social determinants of risk distribution. Conclusions: Residents do not get the crucial information on radon health risk and report barriers in testing and engaging in protective action. Risk perceptions are subjective and influenced by micro and macro level factors. Inducing protective action to reduce risk requires comprehensive interventions taking into account dual perceptions of the threat. Future research can explore the dual aspects of risk perception and examine the contents of the risk communication message. Policy should address the shared responsibility of both governments and residents in tackling the issue with reasonable incentives and mandatory regulations.

The aim of this exploratory study was to determine whether there was any significance to the proposition that the ability of individuals to assess entrepreneurial risks differed between entrepreneurs and non-entrepreneurs, with a particular focus on the risk identification and risk prioritisation abilities.A survey strategy was followed which made use of a case study exercise to ascertain what risks the sample groups of entrepreneurs and non-entrepreneurs identified. Demographics and other risk variables, such as risk propensity and risk perception, were also excluded to provide context and eliminate certain alternative explanations.No significant differences were found between entrepreneurs and non-entrepreneurs with respect the risks that they identified in the case study exercise. Entrepreneurs perceived the case study as more favourable and had a higher risk propensity. Entrepreneurs also found the case study exercise more difficult than non-entrepreneurs. / Dissertation (MBA)--University of Pretoria, 2012. / Gordon Institute of Business Science (GIBS) / unrestricted

This qualitative study utilized the protective action decision model to explore the risk perceptions and hazard adjustments to the earthquake risk of residents in El Reno, Oklahoma.

Previous research has suggested that misinterpretations of hurricane track forecasts can lead to errors in estimation of perceived risk. One factor that can be used to understand these errors in judgment of risk perception is called optimistic bias, in which an individual perceives that compared to another person they are at less risk. Thus, the purpose of this study was to examine how risk perceptions of hurricane track forecasts are influenced by the optimistic bias and changes in the forecasts. Students from three coastal universities took a survey regarding hurricane risk from two different track scenarios of a hypothetical hurricane approaching their university. Results indicated that optimism and perceptions of hurricane tracks were not correlated. Regardless of changes in forecast tracks, students perceived the same level of risk by the final forecast. This research has important social implications because hurricane track forecasts are part of the hurricane decision-making process.

The proliferation of female entrepreneurs, especially in developing countries, instigated this study, to understand their judgement and decision-making processes in the highly complex and uncertain entrepreneurial landscape within which they need to thrive. The study focused on cognitive bias and its effects on risk perception and firm performance, particularly in female entrepreneurs. This study took a quantitative approach to analyse the effects of cognitive bias. A cross sectional explanatory research design, using a combination of purposive and snowballing non-probability sampling strategies, yielded a sample of 75 female entrepreneurs. The data collected on their risk perception, which is believed to be a determinant of success, was analysed using Pearson’s correlations, paired t-tests and multivariate regression statistical techniques. The key findings of this study are based on the evaluation of four research hypotheses were; a weak negative relationship exists between overconfidence and risk perception; a positive relationship exists between overoptimism and risk perception; and no relationship exists between self-efficacy and risk perception. With regard to firm performance, none of the cognitive biases or risk perceptions were found to have any statistically significant relationship. This study brought a different dimension to the effects of cognitive bias, as its findings mostly contradicted existing literature. / Mini Dissertation (MBA)--University of Pretoria, 2021. / Gordon Institute of Business Science (GIBS) / MBA / Unrestricted