Skip to main content

CHEM 597R - Introduction to Research Data Management, Scholarly Publishing, Citation Analysis and Impact Factors: Journal Impact Factors

Journal Impact Factors

A journal's impact factor is equal to the average number of times each of its articles has been cited during the two preceding years. A journal's impact factor is generally thought to be a reflection of its prestige. Impact factors are updated each year, and are calculated by Journal Citation Reports (requires Emory subscription). 


Publishing journal articles and being cited is a slow process. Altmetrics provide alternative, faster ways to measure the impact of particular research articles. They can include:

  • Article downloads
  • Mendeley saves
  • CiteULike saves
  • PLoS comments
  • Facebook shares and likes
  • Tweets
  • Blog mentions
  • Faculty of 1000 rankings (requires Emory subscription)

Image from

Subject Guide

© Emory University Libraries - 540 Asbury Circle, Atlanta, Georgia 30322