IMPACT FACTOR: DOES IT HAVE AN IMPACT?

Authors

  • N Manzar
  • B Manzar
  • S Manzar

Abstract

Editor,
The journal's impact factor is at present, considered a
yard stick for measuring the relative quality and
significance of a journal. It is defined as the
frequency with which the '˜average article' in a
journal has been cited in a particular year or period.1
For a given year, this is calculated as the total number
of citations received in that year to articles published
in the previous two years divided by the total number
of citable items published by the journal in the same
two years. The Impact Factor was devised by and is
calculated by The Institute for Scientific
Information® (ISI®), now known as '˜Thomson
Scientific'.
Unfortunately as stated by Dr. Abbasi in
BMJ 2004, ISI® only follows about 5% of over
130,000 known medical and scientific journals
published annually. Moreover, the citation ranking
invented by Eugene Garfield is scientifically
meaningless as is established by indisputable
evidence and even the inventor for a long time has
warned people not to trust impact factor for solely
judging the quality of a journal and in an article has
termed its usage as '˜dangerous'.2
Despite the realisation on a global scale that
impact factors are a faulty system of assessment of a
journal3, we tend to agree with Hoeffel4 that '˜impact
Factor is not a perfect tool to measure the quality of
articles but there is nothing better and it has the
advantage of already being in existence and is,
therefore, a good technique for scientific evaluation.
Even today career advancement, getting funding and
grants all depends on how many articles one has
published in journals with good impact factors. With
increased awareness about impact factors and their
potential impact on career growth and international
recognition many researchers are now targeting
international indexed journals with good impact
factors. The number of publications from Pakistan in
international indexed journals with impact factors
arose by about 179% from 1992 to 2002 reflecting
the change in this trend.5 In this dim scenario the
local non-indexed medical journals face a serious
challenge. They will have to work hard towards
sustained improvement of the journal from
submission to publication as the time, as yet has not
come to ignore the numbers. This will ultimately
have huge implications for evidence based medicine
in third world countries especially Pakistan where
local journals provide good evidence comparable to
international standards.

References

Garfield E. The ISI Impact factor. [online] 2006 [Accessed:

st December 2009] Available from URL:

http://thomsonreuters.com/products_services/science/free/ess

ays/impact_factor.

Garfield E. How can impact factors be improved? BMJ 1996;

: 411-3.

Editorial: Not so deep impact. Nature 2005;435:1003-4.

Hoeffel C. Journal impact factors. Allergy 1998;53:1225.

Ghaleh N R, Siadat F, Azizi F. Quantitative and Qualitative

Assessment of Biomedical Publications from Iran, Pakistan

and Egypt through their Impact Factor. J Pak Med Assoc Oct

;54(10):528-9.

Published

2009-06-01

How to Cite

Manzar, N., Manzar, B., & Manzar, S. (2009). IMPACT FACTOR: DOES IT HAVE AN IMPACT?. Journal of Ayub Medical College Abbottabad, 21(2), 180. Retrieved from https://jamc.ayubmed.edu.pk/index.php/jamc/article/view/3660