"Measuring impact is not a perfect science, and there are many who argue against its implications altogether." (from: UC Berkeley: Research Impact)
It's important to note that any of the methods used for measuring impact should not be used to compare journals across disciplines.
Article-level metrics look at Citation Counts which can tell you:
Use our guide to Cited Reference Searching to learn about using Web of Science, Google Scholar, and other library databases for cited-reference searches.
Author-level metrics measure your productivity and diversity of reach:
Journal or publisher metrics address prestige that particular publications are seen to carry. Some measures include:
About Journal Citation Reports:
Impact Factors can be used to:
Things to Know:
Journal Impact Factor: In Journal Citation Reports (JCR), the impact factor measures the importance of a journal by calculating the times its articles are cited. The calculation is based on citations to articles from the most recent two years, divided by the total number of articles from the most recent two years.
5-Year Journal Impact Factor: In JCR, citations to articles from the most recent five years, divided by the total number of articles from the most recent five years.
Journal Immediacy Index: In JCR, citations to articles from the current year, divided by the total number of articles from the current year.
Journal Cited Half-Life: For the current Journal Citation Reports year, the median age of journal articles cited.
Eigenfactor: Similar to the JCR Five-Year Impact Factor, but weeds out journal self-citations.
Article Influence: The Eigenfactor score divided by the number of articles published in the journal. Measures the average individual article in the journal (as opposed to the journal as a whole).
Google Metrics assigns an h5-index to journals. The h5-index is based on how many articles that journal has published and how many times articles have been cited. For example, a publication with five articles cited by, respectively, 17, 9, 6, 3, and 2, has the h-index of 3.
To search for a specific journal, click on Top 100 Publications and search in the box at the top of the screen.
Things to Know:
For more information see Google Scholar Metrics.
ALTMETRICS (Alternative Metrics) allow us to measure and monitor the reach and impact of scholarship and research through online interactions (primarily social media). Altmetrics are a complement to traditional metrics.
|Altmetric is a web-based service that allows anyone to track, search, and measure the conversations about their research happening online on an article-by-article basis. You can download the Altmetric bookmarklet and click on it when you are on a journal article page (that includes a DOI).|
|In ODU Digital Commons and other databases, PlumX metrics will be available for items with a DOI. Find out how many publications have cited it, how many downloads and views, how many blog or social media mentions.|
These are examples of publishers that have incorporated altmetrics into their websites, or are compatible with the Altmetric Bookmark.
Share your work in the ODU Digital Commons, and receive monthly download reports!