Media and Politics

Hypodermic Needle Theory

An early 20th-century model stating media messages are directly and uniformly absorbed by passive audiences with maximum influence.

Example of Hypodermic Needle Theory

World War I staged government propaganda films or Orson Welles' 1938 War of the Worlds radio broadcast.

Limited Effects Model

Theory stating media has minimal direct impact on public opinion because it primarily reinforces pre-existing attitudes rather than changing them.

Public Ownership

Media owned and operated by the government and funded through tax revenues (e.g.

Private Ownership

Media owned by corporations or individuals

Semi-Public Ownership

Media running as non-profit corporations funded through a hybrid of public grants

Independent Media

A single or diverse array of news outlets operating free from government control, corporate monopolies, or partisan influence to report unbiased information.

Media Chain

A company that owns multiple media outlets of the same type

Cross-Media Ownership

A single company owning multiple different types of media outlets within the same geographic market.

Conglomerate

A giant corporation that owns media outlets across multiple sectors along with non-media business operations.

Telecommunications Act of 1996

Federal legislation that deregulated media markets

Gilens and Hertzman (2000) Finding

Demonstrated corporate ownership bias by showing news outlets owned by parent companies benefiting from the 1996 Telecom Act gave it significantly more favorable coverage.

Traditional Polling Measures of Knowledge

Survey questions that evaluate static civics textbook facts such as naming political figures or identifying branch responsibilities.

Criticisms of Political Knowledge Polling

Expressive responding (party cheerleading) occurs when partisan voters knowingly give wrong or biased answers to support their party rather than reflecting true ignorance.

Heuristics

Cognitive mental shortcuts used by voters to make complex political decisions without processing full details.

Examples of Heuristics

Party identification

Information-Based Model of Competence

The traditional view that civic competence requires memorizing objective political facts and civics data.

Cramer and Toff (2017) Model

Expanded Model of Civic Competence prioritizing lived personal experiences

Klein and Porter (2025) Three Pillars

Citizen competence divided into Reliability (factual accuracy), Representativeness (aligning opinions with true preferences), and Responsiveness (updating beliefs when presented with new facts).

Agenda Setting

The process by which news media select and emphasize specific issues

Salience

The degree of perceived importance or prominence of an issue in the public mind.

Media Agenda

The specific topics and issues prioritized and heavily covered by news organizations.

Public Agenda

The issues ranked by the general public as the most important problems facing the nation.

Policy Agenda

The issues prioritized by government officials

Gilardi et al. (2022) Finding

Analyzed digital vs. traditional media dynamics

Unobtrusive Issues

Topics outside direct personal experience (e.g.

Obtrusive Issues

Topics directly experienced in daily life (e.g.

Framing

The process of structuring and presenting an issue to highlight certain aspects while obscuring others

Framing vs. Agenda Setting

Agenda setting establishes issue salience (what to think about), while framing shapes issue interpretation (how to think about it) by emphasizing specific aspects or values.

Four Characteristics of a Frame

Defining a problem, diagnosing causes, making moral judgments, and suggesting remedies.

Equivalence Framing

Presenting logically identical information in different phrasing (e.g.

Emphasis Framing

Highlighting completely different considerations or values within the same broad topic (e.g.

Top-Down Framing Model

Communication model where political elites craft frames that are transmitted passively to the public by news media.

Cascading Activation Model

Entman's model showing frames cascading downward through a hierarchy: Administration to Elites to News to Journalists to the Public.

Druckman (2001) Finding

Showed framing effects fail if the source lacks credibility or if citizens engage in deliberation with peers holding opposing views.

Peck (2018) Finding

Examined how partisan media networks construct insulated frames that reinforce partisan identity and resist counter-framing.

Mental Priming

The activation of internal concepts or memories by media cues, making them easily accessible and shaping how people evaluate political issues

Design Priming

The deliberate layout or side-by-side visual placement of unrelated concepts in media to trigger automatic mental associations.

Two-Step Communication Flow Theory

Theory stating information flows from mass media to attentive Opinion Leaders

Opinion Leaders

Well-informed individuals who pay close attention to news and diffuse interpreted media messages to their social networks.

Multistep Communication Flow

Theory recognizing that information diffuses through complex social and digital networks via opinion leaders and peers, rather than flowing directly or uniformly from mass media to a passive audience.

Southwell Reading Focus

Explores how social network structure shapes information flow, showing that social networks and peer conversations actively mediate how mass media impacts people.

Green (2024) Reading Focus

Analyzes how digital platforms turn social media influencers into algorithmic opinion leaders in modern networks.

Incidental Exposure

Accidental consumption of news or political information while using media for unrelated entertainment or social interaction.

Narrowcasting

Delivering targeted messages to niche groups rather than the general public, often reinforcing pre-existing ideological beliefs.

Effects of Narrowcasting

Creation of echo chambers

Citizen Journalism

Content creation and news reporting by non-professional citizens using digital tools and social platforms.

Simon (2024) Reading Focus

Investigates how generative AI alters news production

Savage (2025) Reading Focus

Documents how modern internet channels accelerate misinformation and alter information flow across media systems.