Coverage of Google Scholar, Scopus, and Web of Science: A case study of the h-index in nursing.
De Groote, Sandra L.
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PURPOSE: This study compares the articles cited in CINAHL, Scopus, Web of Science (WOS), and Google Scholar and the h-index ratings provided by Scopus, WOS, and Google Scholar. METHODS: The publications of 30 College of Nursing faculty at a large urban university were examined. Searches by author name were executed in Scopus, WOS, and POP (Publish or Perish, which searches Google Scholar), and the h-index for each author from each database was recorded. In addition, the citing articles of their published articles were imported into a bibliographic management program. This data was used to determine an aggregated h-index for each author. RESULTS: Scopus, WOS, and Google Scholar provided different h-index ratings for authors and each database found unique and duplicate citing references. CONCLUSIONS: More than one tool should be used to calculate the h-index for nursing faculty because one tool alone cannot be relied on to provide a thorough assessment of a researcher's impact. If researchers are interested in a comprehensive h-index, they should aggregate the citing references located by WOS and Scopus. Because h-index rankings differ among databases, comparisons between researchers should be done only within a specified database.
CitationDe Groote SL, Raszewski R. Coverage of Google Scholar, Scopus, and Web of Science: A case study of the h-index in nursing. Nurs Outlook. 2012 Nov-Dec;60(6):391-400. doi: 10.1016/j.outlook.2012.04.007.