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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 (since 2011 - onwards)

The 2011 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 2009 and 2010 were cited by journals during 2011.

B = the total number of 'citable items' published by this journal in 2009 and 2010. ('Citable items' are usually articles, reviews, proceedings or notes; not editorials or letters to the editor.)

2011 impact factor = A/B.

The 2012 global impact factor is displayed in the journal header. 

Year Google Scholar
2012   1.63
2011 0.59

Journal website statistics  

The journal website statistics are as follows:

Year Visits Unique visits Pageviews
2012   70357
45140
282724
2011 50151
31218 222049
2010 21768
13877
119036

Unique visits: The number of unduplicated (counted only once) visitors to the journal over the course of a specified time period. 
Pageviews: A page view is the total number of pages viewed. Repeated views of a single page are counted. 



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