Title
A multilevel meta-analysis of studies reporting correlations between the h index and 37 different h index variants
Abstract
This paper presents the first meta-analysis of studies that computed correlations between the h index and variants of the h index (such as the g index; in total 37 different variants) that have been proposed and discussed in the literature. A high correlation between the h index and its variants would indicate that the h index variants hardly provide added information to the h index. This meta-analysis included 135 correlation coefficients from 32 studies. The studies were based on a total sample size of N=9005; on average, each study had a sample size of n=257. The results of a three-level cross-classified mixed-effects meta-analysis show a high correlation between the h index and its variants: Depending on the model, the mean correlation coefficient varies between .8 and .9. This means that there is redundancy between most of the h index variants and the h index. There is a statistically significant study-to-study variation of the correlation coefficients in the information they yield. The lowest correlation coefficients with the h index are found for the h index variants MII and m index. Hence, these h index variants make a non-redundant contribution to the h index.
Year
DOI
Venue
2011
10.1016/j.joi.2011.01.006
Journal of Informetrics
Keywords
Field
DocType
h index,h index variants,Meta-analysis,Multilevel analysis
Correlation coefficient,Computer science,Correlation,Meta-analysis,g-index,Statistics,Sample size determination
Journal
Volume
Issue
ISSN
5
3
1751-1577
Citations 
PageRank 
References 
78
2.59
40
Authors
4
Name
Order
Citations
PageRank
lutz bornmann13124279.75
Ruediger Mutz266639.58
Sven E. Hug31035.43
Hans-Dieter Daniel41338138.60