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Pubmed for Handhelds

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  • Title: News media tracking of tobacco control: a review of sampling methodologies.
    Author: Evans WD, Ulasevich A.
    Journal: J Health Commun; 2005; 10(5):403-17. PubMed ID: 16199385.
    Abstract:
    News media tracking can be used to understand the content of news coverage and quantify its influence on public opinion and the social environment. We hypothesize that a parsimonious sampling of public health news coverage can gather statistically equivalent information to capture a census of coverage. We tested two general approaches to sampling. First, we randomly selected articles within a timeframe. Second, we randomly selected dates during 2000. None of these strategies showed a substantial deviation from the 2000 census of articles. We conclude that sampling coverage can produce estimates statistically equivalent to a census. Researchers should utilize coverage sampling.
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