Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 31 for “"Online Experiments"”.
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Time will tell: Material surface cues for the visual perception of material ageing Insights from psychophysics, online experiments, image processing and a science festival
… systems. To this end, we performed a series of experiments with varying methodologies. These included a psychophysics experiment, online experiments, and data collection during a science festival. The latter showed that the general public mentioned “Faded (colour)” most often to describe …
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Accuracy and Social Motivations Shape Judgements of (Mis)Information
… analyses of large-scale social media datasets, online experiments, network analysis, and a digital field experiment, this thesis illustrates how accuracy motivations, social motivations, and other variables shape the belief and spread of (mis)information. Chapter 2 takes a big data approach to …
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Exploring the effects of mood states, cultural background, and the congruity between ad appeal and product type on consumers’ attitudes and purchasing intentions
… between ad appeals and product types). Two online experiments were conducted with 438 participants from both U.S. and China. All participants (i.e., Americans and Chinese) were randomly assigned to either a positive or negative mood condition and were asked to read either a greeting card ad …
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"It's no problem" : using reverse bargaining to manage the threat of second-order opportunism in social exchange
… value from the receiver. Results from two online experiments support our prediction that reverse bargaining is used to signal benign motive. The second experiment further suggests that givers will mix reverse bargaining with emphases of debt when they are anxious about reciprocity.
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Leveraging synergistic intervals to enhance timing under multiple interval schedules
… improve timing on longer intervals. Across two online experiments (N = 88), participants tracked five independent fixed-interval schedules simultaneously. In Experiment 1, synergistic intervals were integer multiples of 5 s (5, 10, 20, 30, 40). In Experiment 2, nonsynergistic intervals (5, 13, …
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Identity, Intergroup Relationships, and Environmental Conflict
… theory. Through one theoretical review, two online experiments and one in-lab experiment I explore, integrate and test theoretically grounded strategies for reducing the defensive information processing that can exacerbate intergroup divisions in multi-stakeholder settings. The specific …
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MICA workspace : a symbolic computational environment for signal analysis
… hands-on experience at minimal cost? Virtual online experiments are not enough. To build science and engineering skill and intuition, students must set up and run experiments with their own hands. Measurement, Instrumentation, Control, and Actuation (MICA), is a system under development at the …
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CONSUMERS AND THEIR CELEBRITY BRANDS: HOW NARRATIVES IMPACT ATTACHMENT THROUGH COMMUNAL RELATIONSHIP NORMS
… and empirically tested over the course of four online experiments. Results indicate that narratives about celebrity brands transport consumers to a place where they feel and behave as if they are in a communal-like relationship with the celebrity brand, despite their awareness of the contrary. …
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Mini-Publics and the Maxi-Public: Investigating the Perceived Legitimacy of Citizens’ Assemblies in a Deeply Divided Place
… The results of a series of complementary online experiments find that specific design features of citizens’ assemblies have no direct effect on perceived legitimacy. However, there is some variation at the individual level, suggesting that the design features of a citizens’ assembly should …
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Acceptance of anthropomorphic technology.
… a research agenda. It then conducts three online experiments to assess user perceptions of the credibility and persuasiveness of virtual influencers. Virtual influencers are computer-generated images that project advanced levels of visual realism and are prevalent in the digital …
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Can a girl's best friend be born in a lab? the role of ritual in production process conservatism
… gift. Our hypothesis is tested in a series of online experiments. The experiments provide evidence for our argument, and, in particular, females who ever married show the strongest resistance to labcreated diamonds in a ritual condition, compared to when they are in a gift-giving condition. We …
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Accent bias and racial accents in academic comprehension
… various accents. To test these hypotheses, three online experiments consisting of audio recordings and photos were administered to a total of 240 participants split into three groups. In all three groups, participants were presented with photos of three women of different races (white, Latina, …
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Modeling human supervisory control in heterogeneous unmanned vehicle systems
… heterogeneous UVs. Using data accumulated from online experiments, a multi-stage validation process was applied. The validation process resulted in achieving confidence in the model's accuracy and determination of the model's robustness under different input settings. Following the validation …
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Sound-production Related Cognitive Tasks for Onset Detection in Self-Paced Brain-Computer Interfaces
… against idle state in offline and simulated-online experiments. An online experiment was then conducted that turned a messenger dialogue on when a new message arrived by executing the Sound Imagery (SI) onset detection task in real-life scenarios (e.g. watching video, reading text). The SI …
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Essays in Experimental and Development Economics
… examines information transmission using online experiments with jobseekers and recruiters in India, as well as survey participants in the U.S. The first chapter is based on joint work with Ronak Shah, the Head of Technology at Apna, and studies information frictions in one aspect of …
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The effect of digital nudging on the users of eCommerce websites in South Africa
Post pandemic, online shopping applications have seen a rise in consumer traffic over the past three years. E-commerce sales have grown by 35% year over year, with online penetration remaining 30% higher than pre-Covid levels (McKinsey & Company, 2021). In South Africa, e-commerce is driven by high …
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Bridging Machine Learning and Experimental Design for Enhanced Data Analysis and Optimization
… informative observations using a small number of experiments. The demand for smart data collection strategies is increasing due to the need to save time and budget, especially in online experiments and machine learning. However, the traditional experimental design method falls short in …
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When Interacting Online Leads to Taking Action Offline: Examining the Effects of Online Persuasion on IS Users’ Pro-Environmental Behaviours
… (S.H. Schwartz, 1992) to explain when and how online persuasion designs come to affect people’s judgements on resource conservation and environmental protection. Three sets of working propositions and specific hypotheses were developed. Specifically, this research suggests that the use of an IS …
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What's at stake in political messaging?
… evidence from a set of large-scale, randomized, online survey experiments which span multiple electoral contexts and policy issues, I draw the following conclusions. 1. While messages produced by real electoral campaigns have only minimal effects on average, they are highly variable: one message …
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The Social Cognition of Misinformation and Implications for Psychological Interventions
… susceptibility. Through a series of experiments and interventions, the thesis explores how the social context in which misinformation is consumed affects individual judgements of its veracity (Part I) and how this, in turn, influences the effectiveness of psychological interventions …
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