Large increases and decreases in journal impact factors in only one year: The effect of journal self-citations

Authors:
Juan Miguel Campanario
Affiliations:
Departamento de Física, Universidad de Alcalá, 28871 Alcalá de Henares, Madrid, Spain
Venue:
Journal of the American Society for Information Science and Technology
Year:
2011

Citing 1
Cited 2

Structure of the impact factor of journals included in the Social Sciences Citation Index: Citations from documents labeled “editorial material”

Journal of the American Society for Information Science and Technology

Shaping the landscape of research in information systems from the perspective of editorial boards: A scientometric study of 77 leading journals

Journal of the American Society for Information Science and Technology
Where you publish matters most: A multilevel analysis of factors affecting citations of internet studies

Journal of the American Society for Information Science and Technology

Quantified Score

Hi-index	0.00

Visualization

Abstract

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. © 2011 Wiley Periodicals, Inc.