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Journal metrics: The impact factor and everything else

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Impact factor 

A journal's impact factor was originally designed as a tool for comparing journals. The impact factor is a measurement of how frequently an average article is cited per year. The more often the journal is cited, the higher its impact factor.

The impact factor is highly discipline-dependent due to the speed with which articles get cited in a given field and its citation practices. The percentage of total citations occurring in the first two years after publication varies highly amongst disciplines. Accordingly, one cannot compare journals across disciplines on the basis of their relative impact factors and we urge our authors, readers and researchers that they assess the quality of the content of individual articles, not the reputation (popularity) of the journal in which they are published. 

The impact factor tells us nothing about the quality of an article, but only about the quality of the journal as a whole. 

Indices that provide a two-year impact factor for the South African Journal of Information Management are as follows:

1) Google Scholar 

The 2014 global impact factor of this journal has been based on data from Google Scholar and calculated as follows by the journal publisher:

A = the number of times articles published in 2012 and 2013 were cited by journals during 2013.

B = the total number of 'citable items' published by this journal in 2012 and 2013. ('Citable items' are usually articles, reviews, proceedings or notes; not editorials or letters to the editor.)

2014 impact factor = A/B.

The 2014 global impact factor is displayed in the journal header. 

Year Google Scholar
2014 3.50
2013 3.08
2012   1.63
2011 0.59

Journal website statistics  

The journal website statistics are as follows:

Year Session Users Pageviews
2014 53175 39204 166668
2013 22207 16275 78188
2012   17405 12540 63920
2011 13485 8585 52883
2010 5081 3252 32358

User: A visitor who had at least one session within the selected date range.
Session: A container for the actions a user takes on the website, 1 user can have multiple sessions.
Pageviews: Total website pages browsed by users.

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