QS have announced that the world rankings due to appear in 2023 will have a new methodology. This is likely to produce significant changes in the scores and ranks of some universities even if there are no significant changes in the underlying data.
There will no doubt be headlines galore about how dynamic leadership and teamwork have transformed institutions or how those miserable Scrooges in government have been crushing higher education by withholding needed funds.
The first change is that the weighting of the academic survey will be reduced from 40% to 30%. This is quite sensible: 40% is far too high for any one indicator. It remains, however, the largest single indicator and it remains one that tends to favour the old elite or those universities that can afford expensive marketing consultants, at the expense of emerging institutions. The employer survey weight will go up from 10% to 15%.
Next, the weighting of faculty student ratio has been cut from 20% to 10%. Again this is not a bad idea. This metric is quite easy to manipulate and has only a modest relationship to teaching quality, for which it is sometimes supposed to be a proxy.
What has not changed is the citations per faculty indicator. This is unfortunate since rankers can get very different results by tweaking the methodology just a bit. It would have been a big improvement if QS had used several different metrics for citations and/or publications, something that Times Higher Education has just got round to doing.
Then there are three new indicators: international research network, graduate employability, and sustainability.
This means that international indicators will now account for a 15% weighting, adding a further bias towards English-speaking universities, or those in small countries adjoining larger neighbours with similar languages and cultures and working against China and India.
The introduction of a sustainability metric is questionable. It requires a considerable amount of institutional data collecting and this will tend to favour schools with the resources and ambitions to jump through the rankers' hoops.
On the surface, it seems that these changes will be a modest improvement. However, I suspect that one effect of the changes will be a spurious boost for the scores and ranks of the elite Western and English-speaking universities who can mobilise partners and alumni for the surveys, nurture their global networks, and collect the data required to compete in the rankings.
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