Journal self-citation on the h5-index of Ibero-American journals

• Autor(a) principal: Canto, Fabio Lorensi do
• Data de Publicação: 2023
• Outros Autores: Pinto, Adilson Luiz, Talau, Marcos, Dias, Thiago Magela Rodrigues
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Transinformação (Online)
• Texto Completo: https://periodicos.puc-campinas.edu.br/transinfo/article/view/7318
• topic: Bibliometrics; Google Scholar Metrics; Ibero-American Journals; Journal self- ‑citation; DIONE; Bibliometria; Google Scholar Metrics; Periódicos Ibero-americanos; Autocitação de periódico

It aims to analyze journal self-citation in Ibero-American journals from the h5-index of theGoogle Scholar Metrics. The bibliometric tool Gsm_hdata was used to identify 4049 Ibero-American journals indexed simultaneously in Latindex and Google Scholar Metrics. Selfcitations were identified, self-citation rates by country and research area were calculated, and the h5-index was recalculated without self-citations (hs5-index). No self-citations wereidentified in almost 40% of the journals, especially those with an h5-index lower than 5. Theoverall average self-citation rate was 3.6%. Among the 1859 most cited journals with at leastone self-citation, the rate was 4.8%, lower than that of research based on the Impact Factor.Journals of Engineering, Exact and Natural Sciences, and Agricultural Sciences had the highestself-citation rates, while Social Sciences and Humanities journals presented the lowest. Journalswith excessive rates (outliers) were identified in all areas. These results suggest that the prior exclusion of journal self-citations in the calculation of the h5-index is not necessary. However, monitoring journals with excessive self-citation rates is recommended to avoid distortions in impact assessment procedures based on h5-index of Google Scholar Metrics.