Antonakis, J; Lalive, R Quantifying scholarly impact: IQp versus the Hirsch h JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE AND TECHNOLOGY, 59 (6): 956-969 APR 2008

[Eugene Garfield]

E-mail Address: john.antonakis at unil.ch; Rafael.Lalive at unil.ch 

Author(s): Antonakis, J (Antonakis, John); Lalive, R (Lalive, Rafael) 

Title: Quantifying scholarly impact: IQp versus the Hirsch h 

Source: JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE AND 
TECHNOLOGY, 59 (6): 956-969 APR 2008 

Language: English 

Document Type: Article
 
Keywords Plus: INDEX; SCIENTISTS; RESEARCHERS; RANKING
 
Abstract: Hirsch's (2005) h index of scholarly output has generated 
substantial interest and wide acceptance because of its apparent ability 
to quantify scholarly impact simply and accurately. We show that the 
excitement surrounding h is premature for three reasons: h stagnates with 
increasing scientific age; it is highly dependent on publication quantity; 
and it is highly dependent on field-specific citation rates. Thus, it is 
not useful for comparing scholars across disciplines. We propose the 
scholarly "index of quality and productivity" (IQp) as an alternative to 
h. The new index takes into account a scholar's total impact and also 
corrects for field-specific citation rates, scholarly productivity, and 
scientific age. The IQp accurately predicts group membership on a common 
metric, as tested on a sample of 80 scholars from three populations: (a) 
Nobel winners in physics (n = 10), chemistry (n = 10), medicine (n = 10), 
and economics (n = 10), and towering psychologists (n = 10); and scholars 
who have made more modest contributions to science including randomly 
selected (b) fellows (n = 15) and (c) members (n = 15) of the Society of 
Industrial and Organizational Psychology. The IQp also correlates better 
with expert ratings of greatness than does the h index. 

Addresses: Univ Lausanne, Fac Business & Econ, CH-1015 Lausanne, 
Switzerland 

Reprint Address: Antonakis, J, Univ Lausanne, Fac Business & Econ, 
Internef 527, CH-1015 Lausanne, Switzerland. 

E-mail Address: john.antonakis at unil.ch; Rafael.Lalive at unil.ch 

Cited Reference Count: 26 

Times Cited: 0 

Publisher: JOHN WILEY & SONS INC 

Publisher Address: 111 RIVER ST, HOBOKEN, NJ 07030 USA 

ISSN: 1532-2882 

29-char Source Abbrev.: J AM SOC INF SCI TECHNOL 

ISO Source Abbrev.: J. Am. Soc. Inf. Sci. Technol.
 
Source Item Page Count: 14 

Subject Category: Computer Science, Information Systems; Information 
Science & Library Science 

ISI Document Delivery No.: 279OF 

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