[Cooperation or false authorship? Scientometric investigations on the connections between the number of authors, the scientific cooperation and the effectivity].

Introduction: The non-genuine authorship can influence reality of scientometric evaluations. At the same time, cooperation among scientists and institutes is an intrinsic factor of science, which heightens the level of scientific effectivity. The differentiation of these phenomenons is extremely important in Hungary, where the support of the scientific research is often escorted by and depends on scientometric evaluations.

Aims: The authors intended to establish a method aimed at the bibliometric validation of the hypothesis: there exists a positive connection between cooperation and the niveau of scientific publications.

Materials And Methods: The scientific articles of the researchers of the Medical Faculty of the Szeged University, published in journals having impact factor, were divided into clinical and theoretical articles. These groups were divided further on the basis that the researchers of the "owner" Medical Faculty institutes were in majority or minority among the authors. The member articles of the groups were ranked according to the impact factors, then the author number means of the higher and the lower half were compared.

Results: The higher is the number of authors, the higher is the impact factor of the journal article publications, i.e. the cooperation between authors as well as institutes heightens the niveau of the publications.