Large Increases and Decreases in Journal Impact Factors in Only One Year: The Effect of Journal Self-Citations

被引:26
作者
Miguel Campanario, Juan [1 ]
机构
[1] Univ Alcala, Dept Fis, Madrid 28871, Spain
来源
JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE AND TECHNOLOGY | 2011年 / 62卷 / 02期
关键词
MANIPULATION;
D O I
10.1002/asi.21457
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
I studied the factors (citations, self-citations, and number of articles) that influenced large changes in only 1 year in the impact factors (IFs) of journals. A set of 360 instances of journals with large increases or decreases in their IFs from a given year to the following was selected from journals in the Journal Citation Reports from 1998 to 2007 (40 journals each year). The main factor influencing large changes was the change in the number of citations. About 54% of the increases and 42% of the decreases in the journal IFs were associated with changes in the journal self-citations.
引用
收藏
页码:230 / 235
页数:6
相关论文
共 19 条
[1]   Journals that increase their impact factor at least fourfold in a few years: The role of journal self-citations [J].
Andrade, Antonia ;
Gonzalez-Jonte, Raul ;
Miguel Campanario, Juan .
SCIENTOMETRICS, 2009, 80 (02) :515-528
[2]   History of the journal impact factor: Contingencies and consequences [J].
Archambault, Eric ;
Lariviere, Vincent .
SCIENTOMETRICS, 2009, 79 (03) :635-649
[3]   Journal impact measures in bibliometric research [J].
Glanzel, W ;
Moed, HF .
SCIENTOMETRICS, 2002, 53 (02) :171-193
[4]   Structure of the impact factor of journals included in the Social Sciences Citation Index:: Citations from documents labeled "editorial material" [J].
Gonzalez, Lidia ;
Campanario, Juan Miguel .
JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE AND TECHNOLOGY, 2007, 58 (02) :252-262
[5]  
GRANT B, 2010, NEW IMPACT FACTORS Y
[6]   On the behavior of journal impact factor rank-order distribution [J].
Mansilla, R. ;
Koppen, E. ;
Cocho, G. ;
Miramontes, P. .
JOURNAL OF INFORMETRICS, 2007, 1 (02) :155-160
[7]   The evaluation of scientific production: Towards a neutral impact factor [J].
Maria Gomez-Sancho, Jose ;
Jesus Mancebon-Torrubia, Maria .
SCIENTOMETRICS, 2009, 81 (02) :435-458
[8]   Journal self-citations that contribute to the impact factor:: Documents labeled "editorial material" in journals covered by the Science Citation Index [J].
Miguel Campanario, Juan ;
Gonzalez, Lidia .
SCIENTOMETRICS, 2006, 69 (02) :365-386
[9]   Distribution of changes in impact factors over time [J].
Miguel Campanario, Juan .
SCIENTOMETRICS, 2010, 84 (01) :35-42
[10]   The influence of self citations in the increase of impact factor in Social Sciences journals [J].
Miguel Campanario, Juan ;
Candelario, Antonia .
REVISTA ESPANOLA DE DOCUMENTACION CIENTIFICA, 2010, 33 (02) :185-200