Tanner-Smith Emily E, Polanin Joshua R
Department of Human and Organizational Development, Peabody Research Institute, Vanderbilt University, Box 0181 GPC, 230 Appleton Place, Nashville, TN 37203, USA.
Development Services Group, Inc., 7315 Wisconsin Avenue, Suite 800 East, Bethesda, MD 20814, USA.
J Clin Epidemiol. 2016 Jul;75:119-25. doi: 10.1016/j.jclinepi.2016.01.028. Epub 2016 Feb 6.
To examine the relationships between study quality, author prestige, journal impact factors, and citation rates of trials and to examine whether journal impact factors mediated the relationships between study quality and author prestige on citation rates.
We used bibliometric data from 128 controlled trials included in a recent meta-analysis on brief alcohol interventions for adolescents and young adults. We obtained the number of citations from ISI Web of Knowledge and Google Scholar; journal impact factors were obtained from ISI Web of Knowledge. Linear regression models were used to examine the direct and indirect effects of interest.
The results indicated that studies were published in journals with higher impact factors when first authors had higher h-indices and studies were funded, but this was largely because those studies were of higher quality. Studies were cited more frequently when first authors had higher h-indices and studies were funded, even after adjusting for study quality proxies. The observed associations between study quality and author prestige on citation rates were also partly mediated through journal impact factors.
We conclude that studies conducted by more established authors and reported in more prestigious journal outlets are more likely to be cited by other scholars, even after controlling for various proxies of study quality.
研究研究质量、作者声望、期刊影响因子与试验被引率之间的关系,并考察期刊影响因子是否介导了研究质量和作者声望对被引率的关系。
我们使用了近期一项关于青少年和青年简短酒精干预荟萃分析中纳入的128项对照试验的文献计量数据。我们从科学网(ISI Web of Knowledge)和谷歌学术(Google Scholar)获取了被引次数;期刊影响因子从科学网获取。使用线性回归模型来考察感兴趣的直接和间接效应。
结果表明,当第一作者具有较高的h指数且研究获得资助时,研究发表在影响因子较高的期刊上,但这很大程度上是因为这些研究质量较高。即使在调整了研究质量指标后,当第一作者具有较高的h指数且研究获得资助时,研究被引用的频率更高。研究质量和作者声望与被引率之间观察到的关联也部分通过期刊影响因子介导。
我们得出结论,即使在控制了各种研究质量指标后,由更知名作者进行并发表在更有声望期刊上的研究更有可能被其他学者引用。