This is indeed something that many researchers have been asking and concern off.
Is the Impact Factor (IF) an ideal and accurate measure of a journal’s credibility and quality? Aren’t there any loop holes/criticism in this type of measurement?
Calculation of the impact factor is an attempt to create a quantitative evaluation tool magazines. Represents the frequency with which the “average article” a journal is cited in a given period. For example, if there are 100 articles published in the magazine from 2009 to 2010, 100 citations of articles in this journal in 2011 Factor’2011 effect is 1 (number of articles / number of citations). As expected the IF magazine changed every vuosi. SI calculated by Thomson Reuters and you will find detailed information about: