Thursday, July 17, 2014

The CWUR Rankings

The Center for World University Rankings, based in Jeddah, Saudi Arabia, has produced a global ranking of 1,000 universities. Last year and in 2012, 100 universities were ranked. The Center is headed by Nadim Mahassen, an Assistant Professor at King Abdulaziz University.

The rankings include five indicators that measure various aspects of publication and research: Publications in reputable journals, Influence (research papers in highly influential journals), Citations, Broad Impact (h-index) and Patents (h-index).

Altogether these have a weighting of 25%, which seems on the low side for modern world class research universities. The use of the h-index, which reduces the impact of outliers and anomalous cases, is a useful addition to the standard array of indicators. So too is the use of patents filed as a measure of innovation.

Another 25% goes to Quality of Education, which is measured by the number of alumni receiving major international awards relative to size (current number of students according to national agencies). There would appear to be an obvious bias here towards older institutions. There is also a problem that such awards are likely to be concentrated among relatively few universities so that this indicator would  not discriminate among  those outside the world elite.

A quarter is assigned to Quality of Faculty measured by the number of faculty receiving such awards and another quarter to Alumni Employment measured by the number of CEOs of top corporations.

The last three indicators are unlikely to be regarded as satisfactory. The number of CEOs is largely irrelevant to the vast majority of institutions.

In general, these are a useful addition to the current array of global rankings but the non-research indicators are narrow and not very meaningful. There is also a very serious problem with reliability as noted below. 

Now for the standard presentation of rankings, with the addition of a noise analysis. 


Publisher

Center for World University Rankings, Jeddah, Saudi Arabia


Scope

Global. 1,000 universities.

Methodology

Quality of Education (25%) measured by alumni winning international awards relative to size.
Alumni Employment  (25%) measured by CEOs of top companies relative to size.
Quality of Faculty (25%) measured by "academics" winning international awards relative to size.
Publications in reputable journals (5%).
Influence measured by publications in highly influential journals (5%).
Citations measured by the number of highly cited papers (5%).
Broad Impact measured by h-index (5%).
Patents measured by the number of international filings (5%)

Top Ten

1.   Harvard
2.   Stanford
3.   MIT
4.   Cambridge
5.   Oxford
6.   Columbia
7.   Berkeley
8.   Chicago
9.   Princeton
10. Yale

Countries with Universities in the Top Hundred

USA               54
Japan              8
UK                   7
Switzerland    4
France            4
Germany        4
Israel              3
Canada         3
China             2
Sweden         2
South Korea  1
Russia            1
Taiwan           1
Singapore     1
Denmark        1
Netherlands     1
Italy                 1
Belgium         1
Australia        1


Top Ranked in Region

USA:                             Harvard
Canada:                       Toronto
Latin America:             Sao Paulo
Europe:                        Cambridge
Africa:                           Witwatersrand
Asia:                             Tokyo
Middle East:                Hebrew University of Jerusalem
Arab World:                 King Saud University

Noise Index
Average position change of universities in the top 20 in 2013:

0.9

Comparison

Shanghai Rankings (ARWU): 2011-12  --  0.15; 2012-13 --  0.25
THE WUR:  2012-13  --   1.2
QS  WUR    2012-13  --   1.7

Average position change of universities in the top 100 in 2013

10.59

Comparison

Shanghai Rankings (ARWU): 2011-12  --  2.01; 2012-13 --  1.66
THE WUR:  2012-13  --   5.36
QS  WUR    2012-13  --   3.97

The CWUR rankings, once we leave the top 20, are extremely volatile, even more than the THE and QS rankings. This, unfortunately, is enough to undermine their credibility. A pity since there are some promising ideas here.





1 comment:

Ben said...

The study seems to measure political influence, not quality of education. If one wished to quantitatively determine the best school one would need to pre-test each student, and then re-test at graduation.