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One-way ANOVA and the News Coverage Index (2012): TV News Story Length and Geographic Focus

By: The Odum Institute Published: 2017 | Product: SAGE Research Methods Datasets
Data Type: Numeric
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This dataset example introduces researchers to one-way Analysis of Variance (ANOVA). One-way ANOVA allows researchers to test the differences between means for a particular variable across two or more groups. This example uses a subset of data from the Pew Research Center’s Project for Excellence in Journalism News Coverage Index for 2012. Specifically, we test whether the length of TV news stories differs based on the geographic focus of those stories. Understanding the potential relationship between the focus of news stories and their length can help researchers understand market strategies for TV news shows and how viewers might experience news reports based on whether they watch network or cable news programs. The sample dataset used for this example has been cleaned and organized to make ...

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About This Dataset
Data Source Citation

Pew Research Center. (2012). 2012 Project for Excellence in Journalism News Coverage Index [Data file]. Retrieved from

Full title of originating dataset

2012 Project for Excellence in Journalism News Coverage Index (NCI)

Data author(s) and affiliations

Pew Research Center

Data Universe

American news stories from newspapers, online news sources, network television, cable news, and radio news

Funding sources/suppliers

Pew Research Center

Pew Research bears no responsibility for interpretations presented or conclusions reached based on analysis of the data

Sample/sampling procedures

A multistage, purposive sampling process of media outlets was employed to provide a broad, illustrative but not strictly representative sample of the media universe.


Weights for news sources: Newspapers (0.19), Online (0.30), Network TV (0.15), Cable TV (0.23), Radio (0.12)

Data collection dates

01-2012 to 05-2012

Time frame of analysis


Unit of analysis

Text Unit

Location covered by data

United States

Links to SRM content
List of variables


Broadcast Start Time


Duration in Seconds




Story Format


Geographic Focus




Media Type

Methods Map
One-way analysis of variance