Does it Matter Which Citation Tool is Used to Compare the H-Index of a Group of Highly Cited Researchers?
National University of Malaysia - Research Center for Islamic Economics and Finance (EKONIS-UKM)
Islamic Azad University, Najafabad Branch
Melor Md Yunus
National University of Malaysia - Faculty of Education
Arezoo Aghaei Chadegani
Islamic Azad University; University Kebangsaan Malaysia
National University of Malaysia
Islamic Azad University, Mobarakeh Branch
Nader Ale Ebrahim
University of Malaya (UM) - Department of Engineering Design and Manufacture
March 27, 2013
Australian Journal of Basic and Applied Sciences, Vol. 7, No. 4, pp. 198-202, March 2013
h-index retrieved by citation indexes (Scopus, Google scholar, and Web of Science) is used to measure the scientific performance and the research impact studies based on the number of publications and citations of a scientist. It also is easily available and may be used for performance measures of scientists, and for recruitment decisions. The aim of this study is to investigate the difference between the outputs and results from these three citation databases namely Scopus, Google Scholar, and Web of Science based upon the h-index of a group of highly cited researchers (Nobel Prize winner scientist). The purposive sampling method was adopted to collect the required data. The results showed that there is a significant difference in the h-index between three citation indexes of Scopus, Google scholar, and Web of Science; the Google scholar h-index was more than the h-index in two other databases. It was also concluded that there is a significant positive relationship between h-indices based on Google scholar and Scopus. The citation indexes of Scopus, Google scholar, and Web of Science may be useful for evaluating h-index of scientists but they have some limitations as well.
Number of Pages in PDF File: 5
Keywords: h-index, Scopus, Google Scholar, Web of Science, Nobel Prize, Physics, Chemistry, Economic Sciences
JEL Classification: L11, L1, L2, M11, M12, M1, M54, Q1, O1, O3, P42, P24, P29, Q31, Q32, L17
Date posted: June 6, 2013
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