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  • Author or Editor: Izabela Zych x
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Abstract

The impact factor is a highly polemic metric. It was designed to help scientists in searching for bibliographic references for their own works, enabling communication among researchers and helping librarians in deciding which journal they should purchase. Nevertheless, it has soon become the most important measure of scientific performance applied to journals, articles, scientists, universities, etc. Since then, some researchers argue that it is a useless and flawed measure, while others defend its utility. The current study is the first survey on the opinion on the topic of a broad sample of scientists from all over the world. The questionnaire was answered by 1,704 researchers from 86 different countries, all the continents and all the UNESCO major fields of knowledge. The results show that the opinion is slightly above the median which could be understood as “neither positive nor negative”. Surprisingly, there is a negative correlation between the number of articles published by the respondents and their opinion on the impact factor.

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Scientometrics
Authors:
Gualberto Buela-Casal
,
Izabela Zych
,
Ana Medina
,
María Viedma Del Jesus
,
Susana Lozano
, and
Gloria Torres

Abstract  

The study discusses the necessity to analyze the influence of theoretical and empirical types of journal articles on the citation impact of Spanish psychology journals. Three of the most representative Spanish psychology journals were selected for the purposes of this study: Papeles del Psicólogo, Análisis y Modificación de Conducta and Psicothema. Twenty-three psychology journals in Spanish were used as source journals. Altogether, there were sixty-seven issues reviewed for the references and ninety-three issues for the articles. The bibliometricanalysis was conducted by six highly trained psychologists. The results demonstrated differences regarding the percentages of empirical and theoretical articles published in the three examined journals and the number of citations received by them based on the article type. When normalizing the results according to the number of theoretical and empirical articles that were published, it becomes evident that the theoretical articles receive on average twice as many references as the empirical ones. We discuss the importance of this effect on the comparison of journals based on their citation impact and show the evidence that it is only valid to compare journals which publish a similar percentage of theoretical and empirical articles.

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