Abstract:

[Purposes] This paper aims to explore scientific rationality and possible inadequacies of academic journal clout index (CI) to help decision-makers, publishers, and authors to evaluate the influence of academic journals and predict the development potential of journals. [Methods] Taking the data of ten journals' indexes from Annual Report for Chinese Academic Journal Impact factors (Natural Science) (2015-2017) as objects, we ranked the journals according to every journal's comprehensive principal component score (F) by principal component analysis in IBM SPSS software. Results of F-ranking and CI-ranking were compared and the differences were analyzed. The Spearman rank correlation coefficient was applied to compare the correlation between f_CI and F with each of the ten journals' indexes. [Findings] The F has closer correlation with the ten journals' indexes than those with f_CI. Immediacy index has lower correlation coefficient with both F and f_CI than the other indexes, while the correlation coefficient with F is higher than that with f_CI. [Conclusions] The F can better represent the ten journals' indexes than f_CI. Thus F-ranking is much closer to the level of journals reflected by all ten journals' indexes. F-ranking has advantage of f_CI-ranking to show journals' reaction rate and citation intensity, and to indicate journals' latest development trend and vitality. Immediacy index of journals should be considered when the CI-ranking is consulted.

Key words: Academic journal, Influence ranking, Journal clout index, Principal component analysis, Spearman rank correlation coefficient, Immediacy index, Citation intensity

摘要：

【目的】 探讨期刊影响力指数的科学合理性及其可能存在的不足,以利于决策者、办刊人以及作者更加科学地评估学术期刊影响力,预测期刊发展潜力。【方法】 以2015—2017年《中国学术期刊影响因子年报》的10个期刊指标数据为研究对象,运用IBM SPSS软件,采用主成分分析法,求得各期刊的综合主成分得分(F),按照F对期刊进行排名;将F与期刊影响力指数(f_CI)排名结果进行对比分析;采用Spearman秩相关系数,比较f_CI和F与10个指标的相关程度。【结果】 F与10个指标的相关性总体高于f_CI;f_CI和F与即年指标的相关系数相对较小,但是F明显高于f_CI。【结论】 F排名更接近各项指标共同表征的期刊水平;更能反映期刊的反应速率和被引强度;在参阅期刊f_CI排名时,应当特别注意参考期刊的即年指标。

关键词: 学术期刊, 影响力排名, 期刊影响力指数, 主成分分析, Spearman秩相关系数, 即年指标, 被引强度