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Week 2 - New Media, New Rules

Section Objectives

  • Explain and utilize a causal inference framework to construct, discuss, and critically analyze research arguments.
  • Define selective exposure, using research literature and conceptual examples from modern media.
  • Discuss the Attentive-Public, Issue-Public, and Polarization hypotheses, as described in Ch. 5 of Iyengar & McGrady (2011), using the causal inference framework.
  • Analyze the core findings of Bakshy, et al (2015) and Adamic and Glance (2005), focusing on the Polarization hypothesis while using the causal inference framework.
  • Explore how the rise of digital media influenced selective exposure and media consumption.

Key Terms and Concepts

  • Attentive Public Hypothesis
  • Cognitive Dissonance
  • Cross-Cutting Content
  • De-Facto Selectivity
  • Echo Chambers
  • Filter Bubble
  • Googlearchy
  • Homophily
  • Issue Public Hypothesis
  • Polarization Hypothesis
  • Selective Exposure

Section Slides

**See attached .pdf file.

Summaries of Selected Weekly Readings

Author Puzzle Hypothesis Dependent Variable Independent Variable(s)
Iyengar & McGrady (2011)

 How do internet users decide whether information is worth considering?

 

Attentive Public:

 People with a strong (weak) interest in politics seek out (avoid) political news, and this increases (decreases) their political knowledge.

Selection of News, Media, or Content Interest in Politics
Iyengar & McGrady (2011)

 How do internet users decide whether information is worth considering?

Issue Public:

 People seek (avoid) information about an issue that has some immediate (no immediate) impact on their social, economic, or personal welfare.

Selection of News, Media, or Content Interest in Issue
Iyengar & McGrady (2011)  How do internet users decide whether information is worth considering?

Polarization:

 People seek out (avoid) information that they find supportive or consistent (unsupportive or conflicting) with their political beliefs.

Selection of News, Media, or Content Political Leaning
Bakshy (2015)

 How do online networks influence exposure to differing perspectives?

 Increase in diverse friends,  increases exposure to cross-cutting content.

Selection of News, Media, or Content Friend Base & Political Leaning
Adamic (2005)

 Is the internet becoming polarized in its online news sources?

Segregation in the political blogosphere.

Cross-Cutting Citations Political Leaning