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Measuring Aggregate Media Exposure: A Construct Validity Test of Indicators of the National News Environment

Measuring Aggregate Media Exposure: A Construct Validity Test of Indicators of the National News... This study seeks to determine a parsimonious set of media indicators to represent the national media news environment at the daily, weekly, and monthly levels. It provides evidence of the convergent validity of these indicators using cancer and drunk driving news coverage for 1981–2006, and of criterion validity using cancer news coverage for 2003–2006. Validated search terms were used to retrieve stories about cancer and drunk driving from the Lexis-Nexis database. Results revealed that, of the indicators selected, the best aggregate measure of the national news environment is a combined measure of Associated Press, Washington Post, and New York Times. Together, these three sources consistently predicted national newspaper, broadcast, and combined news environment at the daily, weekly, and monthly levels. Since the convergent validity test revealed that the relationship between AP, WPOST, and NYT varies across health topics and time, use of a single indicator is not recommended. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Communication Methods and Measures Taylor & Francis

Measuring Aggregate Media Exposure: A Construct Validity Test of Indicators of the National News Environment

Communication Methods and Measures , Volume 2 (1-2): 19 – May 19, 2008
19 pages

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References (28)

Publisher
Taylor & Francis
Copyright
Copyright Taylor & Francis Group, LLC
ISSN
1931-2466
eISSN
1931-2458
DOI
10.1080/19312450802062620
Publisher site
See Article on Publisher Site

Abstract

This study seeks to determine a parsimonious set of media indicators to represent the national media news environment at the daily, weekly, and monthly levels. It provides evidence of the convergent validity of these indicators using cancer and drunk driving news coverage for 1981–2006, and of criterion validity using cancer news coverage for 2003–2006. Validated search terms were used to retrieve stories about cancer and drunk driving from the Lexis-Nexis database. Results revealed that, of the indicators selected, the best aggregate measure of the national news environment is a combined measure of Associated Press, Washington Post, and New York Times. Together, these three sources consistently predicted national newspaper, broadcast, and combined news environment at the daily, weekly, and monthly levels. Since the convergent validity test revealed that the relationship between AP, WPOST, and NYT varies across health topics and time, use of a single indicator is not recommended.

Journal

Communication Methods and MeasuresTaylor & Francis

Published: May 19, 2008

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