Visibilidad e impacto de la literatura gris científica en repositorios institucionales de acceso abierto. Estudio de caso bibliométrico del repositorio Gredos de la Universidad de Salamanca
Object The main objective of this work is to prove the benefits of open access as a model of scientific communication for scientific gray literature, in general, and for electronic doctoral theses, in particular. This research work aims to answer the question on visibility, usability and impact of d...
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| Tipo de recurso: | tesis doctoral |
| Fecha de publicación: | 2016 |
| País: | España |
| Institución: | Universidad de Salamanca (USAL) |
| Repositorio: | GREDOS. Repositorio Institucional de la Universidad de Salamanca |
| OAI Identifier: | oai:gredos.usal.es:10366/132444 |
| Acceso en línea: | http://hdl.handle.net/10366/132444 |
| Access Level: | acceso abierto |
| Palabra clave: | Tesis y disertaciones académicas Universidad de Salamanca (España) Academic dissertations Acceso abierto Visibilidad Impacto Literatura gris Literatura gris científica Estudio bibliométrico Repositorios institucionales Open Access Visibility Impact Grey Literature Scientific Grey Literature Institutional Repositories 5701.02 Documentación Automatizada |
| Sumario: | Object The main objective of this work is to prove the benefits of open access as a model of scientific communication for scientific gray literature, in general, and for electronic doctoral theses, in particular. This research work aims to answer the question on visibility, usability and impact of doctoral theses deposited in open access repositories, through a bibliometric case study of Gredos repository of the University of Salamanca. Method This research comprises two parts: a theory and practice. For locating and selecting of relevant literature that support both parts of the research it conducted a systematic review of the literature. In theory part it carried a detailed study of the state of the scientific knowledge on open access, on institutional repositories as a basis for conducting the case of study of Gredos Repository of the University of Salamanca, on grey literature and doctoral theses, and on altmetrics to mesure their use and impact according the impact studies about the subject. Practice part is based on quantitative analysis of visibility, use and citation of doctoral thesis at the University of Salamanca presented in the period between 2006 and 2011. To obtain the analyzed sample it took into account, first, the data provided by TESEO database and data provided by Blázquez Ochando (2015) about TESEO; for open access PhD theses it used data provided by the repository itself. To make the use and citation analysis of PhD theses it used data about visits and downloads which were extracted of statistics module of Tasmania University installed in Gredos repository and the citation data provided by Google Scholar Citation, previously it also screened and extracted PhD theses data of Web of Science database. It developed a database with the sample of PhD theses to analyze, where it collected a number of variables and indicators on the use, visibility and citation. To work with data it used Excel and SPSS. It carried a descriptive and comparative analysis of the variables under study. The normal distribution tests were performed with the Kolmogorov-Smirnov test. By Spearman correlation coefficient it estimated the relationship between quantitative variables of the study. To analyze the comparison of visibility and impact indicators according to areas of knowledge he used the Kruskal-Wallis tests. To find between what two groups had differences it carried comparisons (post-hoc) pairs with Dunn test. Results It is shown that the doctoral theses deposited in open access repositories reach a degree of visibility and use that not open access doctoral theses are not in any way; also it shows that doctoral theses disseminated through repositories are cited although the relationship between use and citations received is not proportional, a fact that allows us to deduce the lack of good practices on grey literature citation. Conclusions Institutional repositories are a valid channel to the dissemination of scientific grey literature, particularly the doctoral theses. It can establish a viable bibliometric analysis system for measuring visibility, use, citation and impact of theses deposited in institutional open access repositories. |
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