Old:Keyword Sampling Methodology
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Article Keyword Sampling
For a sample, we used a recent issue from five Dryad “partner” journals:
- American Naturalist (January 2007)
- Molecular Biology and Evolution (January 2007)
- Systematics Biology (October 2006)
- Molecular Ecology (January 2007)
- Evolution (January 2007)
From each issue, we captured the names and authors of research articles and keywords associated with them - as they were provided online - and dumped them into a spreadsheet. The accumulated raw data consisted of 104 articles and 600 keywords.
The keywords, approximately 90% of which had to be defined by researching on the web, were grouped into seven (7) general categories:
- Geography / Ecology / Populations
- Time Period
- Evolutionary Aspect
We then counted the keywords in each category for each journal, and the numerical data was transferred into a table.
(Note: Another member of the team, more familiar with the domain, remarked that the categorizations could benefit from further editing. Also, during the categorization of keywords, the “Geography / Ecology / Populations” category was formed. Ideally, these would have been kept separate. However, more domain expertise and time would have been necessary to do this properly.)