Citation Analysis
1. Journal Impact Factor: a measure of the frequency with which the "average article" in a journal has been cited. Specifically it is the average number of times that articles published in a specific journal in the two previous years (e.g., 2012-2013) were cited in a particular year (i.e., 2014). This is calculated from other journals within the Web of Science database. An Impact Factor of 1.0 means that, on average, the articles published one or two year ago have been cited one time.
Eigenfactor Score: journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Article Influence score measures the average influence of articles in the journal, and is therefore comparable to the traditional impact factor.
“Where To Publish:
Databases and Resources that Can Help You Choose?”
MEASURE |
Metric name |
Useful? |
Database with this information |
Peer Reviewed |
|
yes |
Journal website, |
Longevity |
|
Somewhat |
|
Circulation |
|
No longer relevant |
No longer available in Ulrichsweb |
Acceptance rate |
|
Somewhat |
|
Where colleagues publish |
|
Somewhat |
Survey your colleagues |
Expert’s opinion |
|
Yes, but requires survey research and becomes dated |
Try literature search in library databases or Google Scholar |
Citations
|
“Eigenfactor” “Article Influence”
|
Yes, provides quantitative data.
|
|
h-index |
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Yes
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The h-index can be calculated from the data from all of the sources above. |
Citation Analysis
1. Journal Impact Factor: a measure of the frequency with which the "average article" in a journal has been cited. Specifically it is the average number of times that articles published in a specific journal in the two previous years (e.g., 2012-2013) were cited in a particular year (i.e., 2014). This is calculated from other journals within the Web of Science database. An Impact Factor of 1.0 means that, on average, the articles published one or two year ago have been cited one time.
Eigenfactor Score: journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Article Influence score measures the average influence of articles in the journal, and is therefore comparable to the traditional impact factor.
From the Journal Citation Reports: Social Science Edition enter journal name in search box to see the various calculations, including the Impact Factor. Click on the “Category” to see other journals in the same field.
2. CiteScore metrics:A family of eight indicators that offer complementary views to analyze the publication influence of serial titles of interest.
. SCImago Journal Rank (SJR): a metric based on the idea that not all citations are the same. With SJR, the subject field, quality and reputation of the journal have a direct effect on the value of a citation.
Source-Normalized Impact per Paper (SNIP : Measures contextual citation impact by weighting citations based on the total number of citations in a subject field. The impact of a single citation is given higher value in subject areas where citations are less likely, and vice versa.
Scopus has a “Sources” tab that allows you to compare journals. Search by key words in the journal titles to see CiteScore, SJR and SNIP scores. Click on the “rank” in the lower right corner to view the titles in the subject category.
Cabell's Classification Index © (CCI): Cabell's Directories of Publishing Opportunities calculates the average citations per article for each journal from the preceding 3-year period, then puts each journal into a z-score transformed distribution for each discipline and topic. This yields, for each discipline and topic, an individual ranking environment that consists only of the titles that publish therein. From there, they use the distribution to categorize each of the journals within each environment into one of three influence classifications that approximate the top 10% (Premier), 11-20% (Significant), and >20% (High).
H Index
The Journal h-index expresses the journal's number of articles (h) that have received at least h citations. It can be calculated using data from Web of Science, Scopus or Google Scholar. ..(Publish or Perish uses Google Scholar data.)
The Google Scholar h5-index is based on a five year publication window. (To calculate h-index based on a different range of years use Harzing's Publish or Perish.)
Go to Google Scholar and select Metrics:
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If your journal title does not appear:
Finding journal h-index using Scopus and Web of Science
Scopus
From the Search tab:
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Web of Science
From Search > Web of Science Core Collection:
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Finding the journal h-index using Publish or Perish