When information channels are distributed by different parts, it means that the information is dispersed. If this information is cited in the literature it means bibliographic impact. Therefore, the geographical dispersion of the sources that cites the information represents an extension of geographical impact. Thus, a dispersion indicator could represent a practical tool for the assessment of these events. The present article shows the modeling of a relative dispersion indicator (Index of Segmental Dispersion ISD) that considered its occurrence related to different distribution levels (macro, meso and/or microdispersion) in terms of bibliometric, scientometric, informetric, technometric or similar units of analysis. Examples that illustrates possible applications of ISD in comparative studies of literary works, journals, authors, methods, technique, themes or words and so forth are also introduced.
Information; Scientific communication; Dispersion; Diffusion. Indicators; Bibliometrics; Scientometrics; Informetrics; Dispersion index; Bibliographic impact
