Measuring author impact begins with looking at the publication count, or the number of academic publications he or she has written.
Looks at how many times articles written by an author have been cited in other articles. Also called "times cited" or "cited references".
|Provides an iea of impact of an author/article based on use in other publications||
Different cited reference counts can occur, dependign on which source is used
Does not account for use that does not result in a bibliography entry
Not every database provides citation counts
History of Citation Counting - The Science Citation Index, (SCI) founded by Dr. Eugene Garfield in 1960, was a pioneer effort in citation analysis.
Citation counts are available in Scopus.
The h-index was devised by Prof. Jorge Hirsch, a physicist.
Individual researchers are assigned h-index score, which is supposed to reflect influence more accurately than other metrics do.
h-index scores are computed in this way: An author's publications are ranked according to the citations they received, from highest to lowest. The h-index score is that point in the ranking which equals the number of citations the item has received. So, if an author having 11 citations to the 11th publication in the list would have an h-index of 11.
Provides a number to quantify scholarly activity
Attempts to balance publication count and citation counts
Not an absolute value as citation counts can vary depending on the source searched