The Influence of Online Cues and Warranting Value on Impression Formation

Warranting theory was developed as a means to understand how individuals judge whether online information is reliable and valid and how those judgments influence their impressions (DeAndrea, 2014; Walther, 2011). Information that is immune to manipulation by the person to whom the information refers has warranting value. The more warranting value information has, the greater influence it will have on impressions. Previous research has shown that online cues influence impression formation (e.g. Tong, Van Der Heide, Langwell, & Walther, 2008; Walther, Van Der Heide, Hamel, & Shulman, 2009; Walther, Van Der Heide, Kim, Westerman, & Tong, 2008). However, warranting value, theorized to mediate the relationship between cues and impressions, has only been hypothesized but not tested empirically. This dissertation conceptualizes warranting theory as a Brunswik lens model in which individuals observe online cues, make a judgment about the warranting value of those cues, and then form impressions based on their warranting value judgment. An experiment was conducted in which participants (N = 209) were randomly assigned to view a hypothetical website similar to RateMyProfessors.com. The presence of aggregated data, the number of reviewers, the identifiability of the reviewer, and the presence of comments on the reviews were manipulated. Results of a structural equation model revealed that specific cues did not influence judgments of warranting value which indicates that the warranting process may not function as a Brunswik lens model. Results offer support for warranting theory, in that judgments of warranting value influenced impressions

Making it Facebook official: The warranting value of online relationship status disclosures on relational characteristics

This study utilizes Walther and Parks' (2002) warranting theory to explore the relationship between online system- and co-generated relational cues and the strength of offline romantic relational characteristics. Differences in respondents' (N = 170) relational characteristics were predicted based on their relationship statuses articulated on Facebook. Results indicate individuals who display their relationship status on Facebook are more dependent in their relationship (i.e., more satisfied, committed, invested, and with lower perceived relational alternatives) and used Facebook more. In other words, individuals in relationships that are ‘Facebook official’ report being in more committed, stronger relationships than non-Facebook official counterparts. Findings are discussed with respect to the relationships among social media, relational attributes, and warranting theory

Training Anchoring and Representativeness Bias Mitigation Through a Digital Game

Objective. Humans systematically make poor decisions because of cognitive biases. Can digital games train people to avoid cognitive biases? The goal of this study is to investigate the affordance of different educational media in training people about cognitive biases and to mitigate cognitive biases within their decision-making processes. Method. A between-subject experiment was conducted to compare a digital game, a traditional slideshow, and a combined condition in mitigating two types of cognitive biases: anchoring bias and representativeness bias. We measured both immediate effects and delayed effects after four weeks. Results. The digital game and slideshow conditions were effective in mitigating cognitive biases immediately after the training, but the effects decayed after four weeks. By providing the basic knowledge through the slideshow, then allowing learners to practice bias-mitigation techniques in the digital game, the combined condition was most effective at mitigating the cognitive biases both immediately and after four weeks.This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at [email protected]

Mitigation of Cognitive Bias with a Serious Game: Two Experiments Testing Feedback Timing and Source

One of the benefits of using digital games for education is that games can provide feedback for learners to assess their situation and correct their mistakes. We conducted two studies to examine the effectiveness of different feedback design (timing, duration, repeats, and feedback source) in a serious game designed to teach learners about cognitive biases. We also compared the digital game-based learning condition to a professional training video. Overall, the digital game was significantly more effective than the video condition. Longer durations and repeats improve the effects on bias-mitigation. Surprisingly, there was no significant difference between just-in-time feedback and delayed feedback, and computer-generated feedback was more effective than feedback from other players

Notification pending: Online social support from close and nonclose relational ties via Facebook

Previous research in computer-mediated communication’s effect on social networks has generated questions about the role of weak ties in what was assumed to be a unique affordance of strong ties—obtaining effective social support. Eighty-eight college students completed a questionnaire based on their most recent Facebook status updates and the comments and likes those updates generated. Items queried participants’ perception of each response as well as the participants’ relationships characteristics with the responder. Strong ties were perceived to have significantly closer relationships and provided significant social support. However, weak tie relationships were more numerous than strong ties and were perceived by participants to provide social support that was equally significant. While the use of Facebook did not erode the importance of strong ties, this study found that traditional understandings of weak ties do not account for the strong social support afforded by weak tie relationships when mediated through social network sites

The Soluble Folate Receptor in Autism Spectrum Disorder: Relation to Autism Severity and Leucovorin Treatment

Autism spectrum disorder (ASD) is a heterogeneous neurodevelopmental disorder with life-long consequences that affects up to 1 in 44 children. Treatment with leucovorin (folinic acid), a reduced form of folate, has been shown to improve symptoms in those with ASD and folate pathway abnormalities in controlled clinical trials. Although soluble folate binding proteins (sFBPs) have been observed in the serum of some patients with ASD, the significance of this finding has not been studied. Here, we present a cohort of ASD patients with sFBPs. These patients had severe ASD and were medically complex. Using baseline controlled open-label methodology and standardized assessments, these patients were found to improve in both core and associated ASD symptoms with leucovorin treatment. No adverse effects were related to leucovorin treatment. This is the first report of the sFBPs in ASD. This study complements ongoing controlled clinical trials and suggests that leucovorin may be effective for children with ASD who are positive for sFBPs. Further, sFBPs might be important biomarkers for treatment response to leucovorin in children with ASD. This study paves the way for further controlled studies for patients with sFBPs

Health-status outcomes with invasive or conservative care in coronary disease

BACKGROUND In the ISCHEMIA trial, an invasive strategy with angiographic assessment and revascularization did not reduce clinical events among patients with stable ischemic heart disease and moderate or severe ischemia. A secondary objective of the trial was to assess angina-related health status among these patients. METHODS We assessed angina-related symptoms, function, and quality of life with the Seattle Angina Questionnaire (SAQ) at randomization, at months 1.5, 3, and 6, and every 6 months thereafter in participants who had been randomly assigned to an invasive treatment strategy (2295 participants) or a conservative strategy (2322). Mixed-effects cumulative probability models within a Bayesian framework were used to estimate differences between the treatment groups. The primary outcome of this health-status analysis was the SAQ summary score (scores range from 0 to 100, with higher scores indicating better health status). All analyses were performed in the overall population and according to baseline angina frequency. RESULTS At baseline, 35% of patients reported having no angina in the previous month. SAQ summary scores increased in both treatment groups, with increases at 3, 12, and 36 months that were 4.1 points (95% credible interval, 3.2 to 5.0), 4.2 points (95% credible interval, 3.3 to 5.1), and 2.9 points (95% credible interval, 2.2 to 3.7) higher with the invasive strategy than with the conservative strategy. Differences were larger among participants who had more frequent angina at baseline (8.5 vs. 0.1 points at 3 months and 5.3 vs. 1.2 points at 36 months among participants with daily or weekly angina as compared with no angina). CONCLUSIONS In the overall trial population with moderate or severe ischemia, which included 35% of participants without angina at baseline, patients randomly assigned to the invasive strategy had greater improvement in angina-related health status than those assigned to the conservative strategy. The modest mean differences favoring the invasive strategy in the overall group reflected minimal differences among asymptomatic patients and larger differences among patients who had had angina at baseline