Abstract:
This study investigates correlation between journal self – citation and impact
factor in Agriculture and Veterinary subject category through the scientific
journals indexed in ISC's PJCR during 2001 to 2007. Citation analysis is used to
conduct the research. The results indicate a significant correlation between
impact factor and journal self – citation (r=0.425, sig= 0.000); that is, journals
with low impact factor have less self – citation that indicates self – citation has a
positive effect on impact factor. Pearson Correlation Coefficient demonstrates a
relationship between impact factor and number of articles in negative side (r=-
0.170, sig=0.037) that means the number of articles does not affect journal
impact factor and also journals with more articles do not have higher impact
factor. There is a significant relationship between the number of articles and
journal self – citation (r= 0.596, sig = 0.000) that indicates the more number of
articles the more number of self-citations. Findings show that journal self – cited
rate in Agriculture and Veterinary subject category during 2001 to 2007 has
undergone a descending process. After the removal of journal self – citation, the
rank of 47 journals descended, 86 journals ascended, the rank of 18 journals did
not change and the impact factor of 28 journals decreased to zero
Machine summary:
Correlation between Journal Self-citation and Impact Factor in ISC's PJCR Agriculture and Veterinary Science Journals during 2001-2007 J.
com Abstract This study investigates correlation between journal self citation and impact factor in Agriculture and Veterinary subject category through the scientific journals indexed in ISC's PJCR during 2001 to 2007.
It is obvious that a journal's impact factor has a close relationship with its self-cited rate and the number of self-citations to articles of the journal is important to the calculation result of its impact factor.
This study attempts to investigate correlation between journal self- citation and impact factor in Agriculture and Veterinary subject category through the scientific journals indexed in ISC's PJCR during 2001to 2007.
Biglu (2007) in his paper investigated the trends of impact factors and self-citation rates of journals indexed in the JCR by two neighboring countries of Iran and Turkey for a period of five years (2000- 2005).
Shahryari & Afghahi (2008) investigated the status of self-citation and its comparison in the articles of two journals of Oloume Etela’ Resani (Information Sciences) and Faslname-ye Ketab (Book Quarterl y) during 1995 to 2004.
Findings showed that there was positive correlation between journal self — citation and impact factor.
Findings also reported that the correlation between journal self-citation and impact factor was significant (r=0.
Correlation between journal self-citation and number of articles in Agriculture and Veterinary journals Question 4: Did self- cited rates change within the years in question?