Skip to main content

Two-way ANOVA and the News Coverage Index (2012): TV News Story Length by Story Placement and Media Outlet Type

By: The Odum Institute Published: 2017 | Product: SAGE Research Methods Datasets
Data Type: Numeric
+- LessMore information
Search form
Not Found

This dataset example introduces researchers to two-way Analysis of Variance (ANOVA). Two-way ANOVA is an extension of one-way ANOVA that allows researchers to examine the influence of two different categorical variables on one continuous variable. Two-way ANOVA lets researchers assess the main effect of each categorical variable on the continuous variable in question as well as the interactive effect of the two categorical variables combined. 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 where in the broadcast the story is placed and whether the news program in question airs on network TV or cable TV. Understanding the factors ...

Looks like you do not have access to this content.

To view more content or download guides and data files, please log in or subscribe below.

Looks like you do not have access to this content.

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


Text Unit

Geographic 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
Two-way analysis of variance