How to Measure Researcher Impact
Research
impact is often measured using quantitative methods such as citation
counts, the h-index, and journal impact factors. It can also be
described qualitatively. Currently, there is no one tool or system that
completely measures impact. Each database or tool uses its own
measurement systems, indices, data and authority files. And it is
difficult to use these tools to compare across disciplines that have
different research and publication practices. Furthermore, as scholarly
communication continues to evolve, the limitations of existing metrics
and tools are becoming increasingly evident.
been measured using the number of times they have published and the
number of times their academic publications are cited by other
researchers. Although the simplest way to demonstrate your impact is to
create a list of your publications and the number of times they have
been cited, numerous algorithms based on publication data have also been
created. Below are some of the more common metrics and tools you can
use to measure research impact.
research or learn how it compares to its peers. Similar to individual
impact measures, these numbers can give only a partial story of impact.
Publication Activity and Citation Count
Simple indicators of activity and impact for a group or department
can be discovered by searching all the individuals in the group and
combining their names with the OR search operator. These raw counts will
vary depending on what the data source includes. The h-index for a
group takes all the publications of every member of the group and
creates a cumulative score. Below are some common tools used to obtain
publication and citation data.
the PubMed identifier to locate where articles have been cited. Looks
for citations in nontraditional places such as blogs, databases, and
Wikipedia.
on a computer. It allows researchers to provide evidence of their
research impact. Citations are obtained from Google Scholar. Besides
basic statistics it calculates H-index, G-index, and E-index, among
others.
visualizations are based on crowdsourced discipline annotations of the
queried authors.
For more information or assistance, meet with a librarian or Ask Us.
impact is often measured using quantitative methods such as citation
counts, the h-index, and journal impact factors. It can also be
described qualitatively. Currently, there is no one tool or system that
completely measures impact. Each database or tool uses its own
measurement systems, indices, data and authority files. And it is
difficult to use these tools to compare across disciplines that have
different research and publication practices. Furthermore, as scholarly
communication continues to evolve, the limitations of existing metrics
and tools are becoming increasingly evident.
Researcher impact
An author's impact on their field or discipline has traditionallybeen measured using the number of times they have published and the
number of times their academic publications are cited by other
researchers. Although the simplest way to demonstrate your impact is to
create a list of your publications and the number of times they have
been cited, numerous algorithms based on publication data have also been
created. Below are some of the more common metrics and tools you can
use to measure research impact.
Common Measures of Author Impact
h-Index |
g-index |
i10-index |
|
|---|---|---|---|
Attempts to measure: |
Quality and quantity of author's work |
Quality and quantity of author's work, with more weight on quality |
Quality of author's work |
Calculation: |
An author’s h-index is the number of papers (h) that have received (h) or more citations. An author with an h-index of 8 has 8 papers cited at least 8 times. |
To calculate the g-index an author’s articles are ranked in decreasing order of the number of the citations each received. The unique largest number such that the top g articles received, together, at least g^2 citations is the g-index. |
Counts the number of publications with at least 10 citations. |
Limitations: |
|
Only measures published works. |
|
Group or departmental impact
A research group or department may wish to gauge the impact of itsresearch or learn how it compares to its peers. Similar to individual
impact measures, these numbers can give only a partial story of impact.
Publication Activity and Citation Count
Simple indicators of activity and impact for a group or department
can be discovered by searching all the individuals in the group and
combining their names with the OR search operator. These raw counts will
vary depending on what the data source includes. The h-index for a
group takes all the publications of every member of the group and
creates a cumulative score. Below are some common tools used to obtain
publication and citation data.
- CitedIn (free)
the PubMed identifier to locate where articles have been cited. Looks
for citations in nontraditional places such as blogs, databases, and
Wikipedia.
- Web of Science (provided by NCSU Libraries)
- Publish or Perish (free)
on a computer. It allows researchers to provide evidence of their
research impact. Citations are obtained from Google Scholar. Besides
basic statistics it calculates H-index, G-index, and E-index, among
others.
- Scholarometer (free)
visualizations are based on crowdsourced discipline annotations of the
queried authors.
- Google Scholar (free) and CiteSeerX (free)
For more information or assistance, meet with a librarian or Ask Us.
How to Measure Researcher Impact | NCSU Libraries
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