October 2020

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Quantitative lunch -- Steve Boker.
Quantitative lunch -- Steve Boker. 12:30pm, Zoom
  • This talk presents a short and idiosyncratic history of data analysis of dynamical systems. A variety of linear and nonlinear methods will be presented with a caveat best represented in the following quote from the introduction to Oksendal's textbook Stochastic Differential Equations. "We have not succeeded in answering all our problems---indeed we sometimes feel we have not completely answered any of them. The answers we have found have only served to raise a whole set of new questions. In some ways we feel that we are as confused as ever, but we think we are confused on a higher level and about more important things."  
12:30pm, Zoom
 
 
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Psychology Department Colloquium: Xin (Cynthia) Tong (UVA Psychology)
Psychology Department Colloquium: Xin (Cynthia) Tong (UVA Psychology) 1:30-2:30pm. Zoom -- https://virginia.zoom.us/j/97937242009#success. Password - 214104.

Zoom link:  https://virginia.zoom.us/j/97937242009

Password: 214104
 

Facebook streaming when available: https://www.facebook.com/UVAPsyc

This event is open to UVA Undergraduates. 

Close Captioning is provided. 


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Meeting ID: 979 3724 2009
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1:30-2:30pm. Zoom -- https://virginia.zoom.us/j/97937242009#success. Password - 214104.
 
 
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Social lunch -- Elizabeth Tenny (University of Utah). Zoom.
Social lunch -- Elizabeth Tenny (University of Utah). Zoom. 12:30pm, Zoom
  • Voice is a discretionary decision to speak up in the workplace, with the intention to make things better. Typically, antecedents of voice are studied by examining manager-employee relationships; however, most voice occurs in groups. In this talk, I'll examine the effect of peer social interactions on lateral voice in groups. In particular, I'll discuss two known mechanisms through which peers can affect one another's decisions to voice or remain silent. I will focus specifically on how the group's contextual factors, namely, civility, could differentially affect men and women. Across studies, data from participants in online chats show that their self-reported willingness to voice changes depending on the civility of the group and on broad status characteristics such as gender.  
12:30pm, Zoom
 
 
 
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Social lunch -- Richard Burke (UVA Politics) and Dr. Kal Munis (SNF Agora Institute, JHU). Zoom.
Social lunch -- Richard Burke (UVA Politics) and Dr. Kal Munis (SNF Agora Institute, JHU). Zoom. 12:30pm, Zoom
  • Two trends characterize contemporary American politics, affective polarization (Iyengar et al. 2012) and the nationalization of political behavior (Hopkins 2018). In this paper, we examine whether local framing can decrease voters' reliance on national partisan identities when evaluating their representatives. Relying on both observational evidence from members of Congress' Facebook posts and an experimental study, we find evidence that "talking local" is an effective means for representatives to bypass the "perceptual screen" of partisanship (Campbell et al. 1960).  
12:30pm, Zoom
 
 
Quantitative lunch -- Pascal DeBoeck (University of Utah). Zoom.
Quantitative lunch -- Pascal DeBoeck (University of Utah). Zoom. 12:30pm, Zoom
  • The dynamical systems literature is rich data visualizations techniques, which have allowed for new insights into the processes of many systems. In psychology, the rich complexity of intraindividual variability may benefit from such visualization techniques. Vector field plots, for example, offer the potential for exploratory examination of the relations between constructs. By including derivatives in vector field plots --- the change in a construct with respect to another variable such as time --- relations between the levels (0th derivatives), velocity (1st derivative), and higher order derivatives (e.g., acceleration, jerk) can be explored. While readily accomplished on data with high sampling rates relative to the rates of change of the underlying constructs, such as physiological data, the application of vector field plots to psychological data (e.g., diary data, ecological momentary assessments) has been more challenging due to the number of observations, the sampling rate, the use of non-continuous scales (e.g., a small number of likert scale items), and the measurement error in these scales. The latter poses particular problem, as measurement error compounds as higher orders of derivatives are estimated, resulting in plots that are often too noisy for insights to be gained. This presentation will review the estimation of derivatives using time-delay embedding, and introduce a new method for estimating derivatives that is more efficient than other commonly used approaches. Applications to substantive data will be presented.
12:30pm, Zoom
 
Psychology Department Colloquium -- Alison Adcock (Duke University)
Psychology Department Colloquium -- Alison Adcock (Duke University) 1:30- 2:30pm Zoom

Zoom link:  https://virginia.zoom.us/j/97937242009

Password: 214104
 

Facebook streaming when available: https://www.facebook.com/UVAPsyc

This event is open to UVA Undergraduates. 

Close Captioning is provided. 


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Meeting ID: 979 3724 2009
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Meeting ID: 979 3724 2009
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Meeting ID: 979 3724 2009
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Join by Skype for Business
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1:30- 2:30pm Zoom
 
 
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