We investigate the temporal course of meta-cognition and resistance processes following exposure to counter-attitudinal information in the 2012 Presidential election. Using a unique 3-wave survey ...panel design, we tracked eligible voters during the last months of the 2012 campaign and experimentally manipulated exposure to negative political messages targeting Barack Obama and Mitt Romney on an online platform. As predicted, we found that politically unengaged (vs. engaged) individuals were less likely to counter-argue a message attacking their favored candidate. Resistance, in turn, led to increased attitudinal certainty, polarization, and correspondence with actual voting behavior over the course of the campaign. These findings provide the first analysis of the longitudinal effects of meta-cognitive processes underlying persuasion for real-world attitude change and behavior.
Hibbing and colleagues argue that political attitudes may be rooted in individual differences in negativity bias. Here, we highlight the complex, conditional nature of the relationship between ...negativity bias and ideology by arguing that the political impact of negativity bias should vary as a function of (1) issue domain and (2) political engagement.
Percutaneous coronary intervention (PCI) of bifurcation lesions remains challenging with a higher risk of adverse outcomes. Whether adjunctive intravascular ultrasound (IVUS) imaging improves ...outcomes of PCI of bifurcation lesions remains unclear. This study sought to determine the long-term clinical outcomes associated with using IVUS for percutaneous treatment of coronary bifurcation lesions. From April 2003 through August 2010, 449 patients with 471 bifurcation lesions underwent PCI with (n = 247) and without (n = 202) the use of IVUS. Clinical outcomes (death, myocardial infarction MI, periprocedural MI, stent thrombosis, target vessel revascularization TVR, and target lesion revascularization TLR) were compared between patients undergoing PCI with and without IVUS using univariate and propensity score-adjusted analyses. Most patients (61%) presented with acute coronary syndrome and 89% of bifurcations lesions were Medina class 1,1,1. After propensity score adjustment, use of IVUS was associated with significantly lower rates of death or MI (odds ratio 0.38, 95% confidence interval 0.20 to 0.74, p = 0.005), death (odds ratio 0.40, 95% confidence interval 0.18 to 0.88, p = 0.02), MI (odds ratio 0.37, 95% confidence interval 0.14 to 0.98, p = 0.04), periprocedural MI (odds ratio 0.45, 95% confidence interval 0.20 to 0.97, p = 0.04), TVR (odds ratio 0.28, 95% confidence interval 0.14 to 0.53, p <0.0001), and TLR (odds ratio 0.27, 95% confidence interval 0.14 to 0.53, p = 0.0003) compared to no IVUS. In conclusion, IVUS-guided treatment of complex bifurcation lesions was associated with significantly lower rates of adverse cardiac events at late follow-up. Further study is warranted to evaluate the role of IVUS guidance in improving long-term outcomes after PCI of bifurcation lesions.
In an analysis of the 2012 presidential election, we sought to optimize two key desiderata in capturing campaign effects: establishing causality and measuring dynamic (i.e., intraindividual) change ...over time. We first report the results of three survey‐experiments embedded within a three‐wave survey panel design. Each experiment was focused on a substantive area of electoral concern. Our results suggest, among other findings, that retrospective evaluations exerted a stronger influence on vote choice in the referendum (vs. the choice) frame; that among White respondents, racial animosity strongly predicted economic evaluations for knowledgeable Republicans who were led to believe that positive economic developments were the result of actions taken by the Obama administration; and that information‐seeking bias is a contingent phenomenon, one depending jointly on the opportunity and motivation to selectively tune in to congenial information. Lastly, we demonstrate how the panel design also allowed us to (1) examine the reliability and stability of a variety of election‐related implicit attitudes, and to assess their impact on candidate evaluation; and (2) determine the causal impact of perceptions of candidates’ traits and respondents’ policy preferences on electoral preferences, and vice versa, an area of research long plagued by concerns about endogeneity.
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