QS Rankings by Subject

QS have produced their annual subject rankings. At the top there are no real surprises and, while there is certainly room for argument, I do not think that anyone will be shocked by the top ten or twenty in each subject.

The university with the most number ones is Harvard:

Medicine
Biology
Psychology
Pharmacy and Pharmacology
Earth and Marine Sciences
Politics and International Studies
Law
Economics and Econometrics
Accounting and Finance
Education

MIT has seven:
Computer Science
Chemical Engineering
Electrical Engineering
Mechanical Engineering
Phys and Astronomy
Chemistry
Materials Science

Then there is Berkeley with exactly the four you would expect:
Environmental Science
Statistics and Operational Research
Sociology
Communication and Media Studies

Oxford has three:

Philosophy
Modern Languages
Geography

Cambridge another three:
History
Linguistics
Mathematics


Imperial College London is top for Civil Engineering and University of California, Davis for Agriculture and Forestry.


These rankings are based on the academic opinion survey, the employer survey, citations per paper and h-index, a measure of both output and influence that eliminates outliers, in proportions that vary for each subject. They are very research-focused which is unfortunate since there seems to be a consensus emerging at conferences and seminars that the THE-TR rankings are for policy makers, the Shanghai ARWU for researchers and the QS rankings for undergraduate students.

Outside the top fifty there are some oddities resulting form the small number of responses when we leave the top fifty or top one hundred. I will leave it to specialists to find them.

Unsolicited Advice

There has  been a lot of debate recently about the reputation survey component in the QS World University Rankings.

The president of University College Cork asked faculty to find friends at other universities who "understand the importance of UCC improving its university world ranking". The reason for the reference to other universities is that the QS survey very sensibly does not permit respondents to vote for their own universities, those that they list as their affiliation.  

This request appears to violate QS's guidelines which permit universities to inform staff about the survey but not to encourage them to nominate or refrain from nominating any particular university. According to an article in Inside Higher Ed QS are considering whether it is necessary to take any action.

This report has given Ben Sowter of QS sufficient concern to argue that it is not possible to effectively manipulate the survey.  He has set out a reasonable case why it is unlikely that any institution could succeed in marching graduate students up to their desktops to vote for favoured institutions to avoid being sent to a reeducation camp or to teach at a community college.

However, some of his reasons sound a little unconvincing: signing up, screening, an advisory board with years of experience. It would help if he were a little more specific, especially about the sophisticated anomaly detection algorithm, which sounds rather intimidating.

The problem with the academic survey is not that an institution like University College Cork is going to push its way into the global  top twenty or top one hundred  but that there could be a systematic bias towards those who are ambitious or from certain regions. It is noticeable that some universities in East and Southeast Asia do very much better on the academic survey than on other indicators. 

The QS academic survey is getting overly complicated and incoherent. It began as a fairly simple exercise. Its respondents were at first drawn form the subscription lists of World Scientific, an academic publishing company based in Singapore. Not surprisingly, the first academic survey produced a strong, perhaps too strong, showing for Southeast and East Asia and Berkeley. 

The survey turned out to be unsatisfactory, not least because of an extremely small response rate. In succeeding years QS has added respondents drawn from the subscription lists of Mardev, an academic database, largely replacing those from World Scientific, lists supplied by universities, academics nominated by respondents to the survey and those joining the online sign up facility. It is not clear how many academics are included in these groups or what the various response rates are. In addition, counting responses for three years unless overwritten by the respondent might enhance the stability of the indicator but it also means that some of the responses might be from people who have died or retired.

The reputation survey does not have a good reputation and it is time for QS to think about revamping the methodology. But changing the methodology means that rankings cannot be used to chart the progress or decline of universities over time. The solution to this dilemma might be to launch a new ranking and keep the old one, perhaps issuing it later in the year or giving it less prominence.

My suggestion to QS is that they keep the current methodology but call it the Original QS Rankings or the QS Classic Rankings. Then they could introduce the  QS Plus or New QS rankings or something similar which would address the issues about the academic survey and introduce some other changes. Since QS are now offering a wide range of products, Latin American Rankings, Asian Rankings, subject rankings, best student cities and probably more to come, this should  not impose an undue burden.

First, starting with the academic survey, 40 percent is too much for any indicator. It should be reduced to 20 per cent.

Next, the respondents should be divided into clearly defined categories, presented with appropriate questions and appropriately verified.

It should be recognised that subscribing to an online database or being recommended by another faculty member is not really a qualification for judging international research excellence. Neither is getting one’s name listed as corresponding author. These days that  can have as much to do with faculty politics as with ability.  I suggest that the academic survey should be sent to:

(a) highly cited researchers  or those with a high h-index who should be asked about international research excellence;

(b) researchers drawn from the Scopus database who should be asked to rate the regional or national research standing of universities.

Responses should be weighted according to the number of researchers per country.

This could be supplemented with a survey of student satisfaction with teaching based on a student version of the sign up facility and requiring a valid academic address with verification.

Also, a sign up facility could be established for anyone interested and asking a question about general perceived quality.

If QS ever do change the academic survey they might as well review the other indicators. Starting with the employer review, this should be kept since, whatever its flaws, it is an external check on universities. But it might be easier to manipulate than the academic survey. Something was clearly going on in the 2011 ranking when there appeared to be a disproportionate number of respondents from some Latin American countries, leading QS to impose caps on universities exceeding the national average by a significant amount. 

"QS received a dramatic level of response from Latin America in 2011, these counts and all subsequent analysis have been adjusted by applying a weighting to responses from countries with a distinctly disproportionate level of response."

It seems that this problem was sorted out in 2012. Even so, QS might consider giving   half the weighting for this survey to an invited panel of employers. Perhaps  they could also broaden their database by asking NGOS and non-profit groups about their preferences.

There is little evidence that overall the number of international students has anything to do with any measure of quality and it also may have undesirable backwash effects as universities import large numbers of less able students. The problem is that QS are doing a good business moving graduate students across international borders so it is unlikely that they will ever consider doing away this indicator.

Staff student ratio is by all accounts a very crude indicator of quality of teaching. Unfortunately, at the moment there does appear to be any practical alternative. 

One thing that QS could do is to remove research staff from the faculty side of the equation. At the moment a university that hires an army of underpaid research assistants  and sacks a few teaching staff, or packs them off to a branch campus, would be recorded as having brought about a great improvement in teaching quality.

Citations are a notoriously problematical way of measuring research influence or quality. The Leiden Ranking shows that there are many ways of measuring research output and influence. It would be a good  idea to combine several different ways of counting citations. QS have already started to use the h- index in their subject rankings starting this year and have used citations per paper in the Asian University Rankings.

With the 20 per cent left over from reducing the weighting for the academic survey QS might consider introducing a measure of research output rather than quality since this would help distinguish among universities outside the elite and perhaps use internet data from Webometrics as in the Latin American rankings.

New Report Out

Global University Rankings and their Impact: Report II

Andrejs Rauhvargers

Asian higher education revolution a long way off

My article in University World News can be accessed here.

The Leiden Ranking

The Leiden ranking for 2013 is out. This is produced by the Centre for Science and Technology Studies (CWTS) at Leiden University and represents pretty much the state of the art in assessing research publications and citations.

A variety of indicators are presented with several different settings but no overall winner is declared which means that these rankings are not going to get the publicity given to QS and Times Higher Education.

Here are top universities, using the default settings provided by CWTS.

Total Publications: Harvard
Citations per Paper: MIT
Normalised Citations per Paper: MIT
Quality of Publications: MIT

There are also indicators for international and industrial collaboration that I hope to discuss later.

It is also noticeable that high flyers in the Times Higher Education citations indicator, Alexandria University, Moscow Engineering Physics Institute (MEPhI), Hong Kong Baptist University, Royal Holloway, do not figure at all in the Leiden Ranking. What happened to them?

How could MEPhI, equal first in the world for research influence according to THE and Thomson Reuters, fail to even show up in the normalised citation indicator in the Leiden Ranking?

Firstly, Leiden have collected data for the top 500 universities in the world according to number of publications in the Web of Science. That would have been sufficient to keep these institutions out of the rankings.

In addition, Leiden use fractionalised counting as a default setting so that the impact of mutiple-author publications is divided by the number of university addresses. This would drastically reduce the impact of publications like the Review of Particle Physics.

Also, by field Leiden mean five broad subject groups whereas Thomson Reuters appears to use a larger number (21 if they use the same system as they do for highly cited researchers.) There is accordingly more chance of anomalous cases having a great influence in the THE rankings.

THE and Thomson Reuters would do well to look at the multi-authored, and most probably soon to be multi-cited, papers that were published in 2012 and look at the universities that could do well in 2014 if the methodology remains unchanged.

Combining Rankings

Meta University Ranking has combined the latest ARWU, QS and THE World Rankings. Universities are ordered by place so that Harvard gets the highest (i.e. lowest score) with an average of 2.67 (1st in ARWU, 3rd in QS and 4th in THE).

After that there is MIT, Cambridge, Caltech and Oxford.

Some More on the THE World University Rankings 2


I have calculated the mean scores for the indicator groups in the 2012-13 Times Higher education. world university rankings. The mean scores are for the 400 universities included in the published 2012-13 rankings are:

Teaching   41.67
International Outlook 52.35
Industry Income 50.74
Research 40.84
Citations 65.25

For Industry Income, N is 363 since 37 universities, mainly in the US, did not submit data. This might be a smart move if the universities realized that they were likely to receive a low score. N is 400 for the others.

There are considerable differences between the indicators which are probably due to Thomson Reuters' methodology. Although THE publishes data for 200 universities on its website and another 200 on an iPad/iPhone app there are in fact several hundred more universities that are not included in the published rankings but whose scores are used to calculate the overall mean from which scores for the ranked universities are derived.

A higher score on an indicator means a greater distance from all the institutions in the Thomson Reuters database.

The high scores for citations mean that there is a large gap between the top 400 and the lesser places outside the top 400.

I suspect that the low scores for teaching and research are due to the influence of the academic survey which contributes to both indicator clusters. We have already seen that after the top six, the curve for the survey is relatively flat.

The citations indicator already has a disproportionate influence contributing 30 % to the overall weighing. That 30 % is of course a maximum. Since universities on average are getting more for citations than the the  indicators, it has in practice a correspondingly greater weighting.

Some More on the THE World University Rankings 2012-13

Here are some observations based on a simple analysis of the Times Higher Education World University Rankings of 2012-13.

First, calculating the Pearson correlation between the indicator groups produces some interesting points. If a ranking is valid we would expect the correlations between indicators to  be fairly high but not too high. If the correlations between indicators are above .800 this suggests that they are basically measuring the same thing and that there is no point in having more than one indicator. On the other hand it is safe to assume that if an indicator does measure quality or desired characteristics in some way it will have a positive relationship with other valid indicators.

One thing about the 2012-13 rankings is that the relationship between international outlook (international faculty, students and research collaboration)  and the other indicators is negative or very slight. With teaching it is .025 (not significant), industry income .003 (not significant), research .156 and citations 158. This adds to  my suspicion that internationalisation, at least among those universities that get into the world rankings, does not per se  say very much about quality.

Industry income correlates modestly with teaching (.350) and research (.396), insignificantly with international outlook (.003) and negatively and insignificantly with citations (-.008).

The correlation between research  and teaching is very high at .905. This may well be because  the survey of academic opinion contributes to the teaching and the research indicators. There are different questions -- one about research and one about postgraduate supervision -- but the difference between the responses is probably quite small.

It is also very interesting that the correlation between scores for research and citations is rather modest at .410. Since volume of publications, funding and reputation should contribute to research influence, which is what citations are supposed to measure, this suggests that the citations indicator needs a careful review.

Teaching, research and international outlook are composites of several indicators. It would be very helpful if THE or Thomson Reuters released the scores for the separate indicators.

The California Paradox

Looking at the Times Higher Education reputation rankings, I noticed that there were two Californian universities in the  superbrand six and seven in the top 50. This is not an anomaly. A slightly different seven can be found in the THE World University Rankings. California does even better in the Shanghai ARWU with three in the top six and 11 in the top 50. This is a slight improvement on 2003 when there were ten. According to ARWU, California would be the second best country in the world for higher education if it became independent.

California’s performance is not so spectacular according to QS who have just four Californian institutions in their top fifty, a fall from 2004 when they had five (I am not counting the University of California at San Francisco which, being a single subject medical school, should not have been there). Even so it is still a creditable performance.

But, if we are to believe many commentators, higher education in California, at least public higher education, is dying if not already dead.

According to Andy Kroll in Salon:

"California’s public higher education system is, in other words, dying a slow death. The promise of a cheap, quality education is slipping away for the working and middle classes, for immigrants, for the very people whom the University of California’s creators held in mind when they began their grand experiment 144 years ago. And don’t think the slow rot of public education is unique to California: that state’s woes are the nation’s".

The villains according to Kroll are Californian taxpayers who refuse to accept adding to a tax burden that is the among the highest in the world. 

It is surprising that the death throes of higher education in California have gone unnoticed by the well known international rankers.

It is also surprising that public and private universities that are still highly productive and by international standards still lavishly funded exist in the same state as secondary and elementary schools that are close to being the worse in the nation in terms of student performance. The relative and absolute decline in educational achievement is matched by a similar decline in the overall economic performance of the state.

It may be just a matter of time and in the coming decades Californian universities will follow primary and secondary education into irreversible decline.

 

 

 

Preserving data

Times Higher and QS have both renovated their ranking pages recently and both seem to have removed access to some data from previous years. THE used to provide links to the Times Higher Education (Supplement) - Quacquarelli Symonds rankings of 2004-2010 but apparently not any more. QS do not seem to give access to these rankings before 2007. In both cases, I will update if it turns out that there is a way to get to these rankings.


There is, however,  a site which has the rankings for the top 200 of the THES - QS Rankings of 2004-2007.

The THE Reputation Rankings

Times Higher Education have published their reputation rankings based on data collected from the World University Rankings of 2012.

They are not very interesting. Which is exactly what they should be. When rankings show massive changes from one year to another a certain amount of scepticism is required.

The same six, Harvard, MIT, Stanford, Berkeley, Oxford and Cambridge are well ahead of everybody else as they were in 2012 and in 2011.

Taking a quick look at the top fifty, there is little movement between 2011 and 2013. Four universities for the US, Japan, Netherlands and Germany have dropped out. In their place there is one more from Korea and from the the UK and two more from Australia.

I was under the impression that Australian universities were facing savage cuts in research funding and were going to be deserted by international students and researchers..

Maybe it is the other universities that are being cut. or maybe a bit of blood letting is good for the health.

I also noticed that the number of respondents went down a bit in 2012. It could be that the academic world is beginning to suffer from ranking fatigue.

GRE Country Ranking: Verbal Reasoning

Arranging the mean scores for the 2011-12 GRE Verbal Reasoning test, we can see that the bottom looks rather similar to  the Quantitative Reasoning test. It comprises African and Arab countries. The top is very different, with five out of six places held by countries where English is currently the native language of a majority of the population.

1	Australia	158.40
2	New Zealand	157.30
3=	Singapore	157.10
3=	Ireland	157.10
3=	UK	157.10
6	Canada	156.00
7	Netherlands	155.50
8	Belgium	155.00
9	US White	154.10
10	Switzerland	153.70
11	Romania	153.50
12=	Sweden	153.30
12=	South Africa	153.30
14	Bulgaria	153.20
15	Norway	153.10
16	USA	152.90
17	Argentina	152.80
18	France	152.70
19	US Asian	152.60
20	Austria	152.50
21	Germany	152.30
22	Denmark	152.30
23	Italy	152.20
24	Croatia	151.70
25	Finland	151.70
26	Uruguay	151.60
27	US American Indian	151.50
28=	Czech Republic	151.40
28=	Israel	151.40
28=	Trinidad	151.40
31	Hungary	151.20
32=	Portugal	150.90
32=	Spain	150.90
34	Poland	150.40
35	Lithuania	150.30
36	US Hispanic	150.20
37	Iceland	149.80
38	US Mexican	149.70
39=	Malaysia	149.50
39=	Barbados	149.50
41	Greece	149.40
42=	Costa Rica	149.10
42=	Philippines	149.10
44	Guatemala	149.00
45	Brazil	148.90
46=	Zimbabwe	148.80
46=	Jamaica	148.80
48	US Porto Rican	148.70
49=	Georgia	148.60
49=	Bosnia - Herzogovina	148.60
51	Guyana	148.60
52	Moldova	148.40
53	Macedonia	148.30
54=	Peru	148.20
54=	Mexico	148.20
54=	Bahamas	148.20
57	Chile	148.00
58	Belarus	147.90
59	Russia	147.80
60=	Latvia	147.70
60=	Colombia	147.70
62	Albania	147.60
63=	Estonia	147.60
63=	Venezuela	147.60
63=	El Salvador	147.60
63=	Cuba	147.60
63=	St Lucia	147.60
68=	Hong Kong	147.50
68=	South Korea	147.50
70=	Ukraine	147.40
70=	Bahrain	147.40
72=	Serbia	147.30
72=	Bolivia	147.30
74=	Eritrea	147.20
74=	Honduras	147.20
76=	Zambia	147.10
76=	Afghanistan	147.10
78	Pakistan	147.00
79	Panama	146.80
80	US Black	146.70
81=	Ecuador	146.50
81=	Kenya	146.50
83	Nigeria	146.40
82=	Morocco	146.30
82=	Senegal	146.30
82=	Nicaragua	146.30
87=	Cyprus	146.10
87=	Dominican Republic	146.10
87=	Sierra leone	146.10
90	Uzbekistan	146.00
91	China	145.90
92	Mongolia	145.80
93=	Vietnam	145.70
93=	Myanmar	145.70
95	Kazakhstan	145.60
96=	Togo	145.50
96=	Ghana	145.50
98=	Tunisia	145.20
98=	Uganda	145.20
100	Niger	145.10
101=	Burkina Faso	145.00
101=	Malawi	145.00
103	Kyrgyzstan	144.90
104=	India	144.70
104=	Indonesia	144.70
106	Cote d'Ivoire	144.60
107=	Japan	144.50
107=	Nepal	144.50
107=	Haiti	144.40
110=	Taiwan	144.20
110=	Bangladesh	144.20
110=	Ethiopia	144.20
110=	Benin	144.20
110=	Congo DR	144.20
115	Turkey	144.10
116=	Egypt	143.80
116=	Azerbaijan	143.80
118	Armenia	143.70
119=	Turkmenistan	143.50
119=	Cameroon	143.50
121=	Macao	143.40
121=	Sri Lanka	143.40
121=	Tanzania	143.40
124	Thailand	142.80
125=	Syria	142.70
125=	Rwanda	142.70
127	Qatar	142.50
128	Algeria	141.60
129	Jordan	141.40
130	Oman	141.30
131	Yemen	141.00
132	Congo Republic	140.90
133	Kuwait	140.80
134	Sudan	140.60
135=	UAE	140.30
135=	Mali	140.30
137	Namibia	140.20
138	Saudi Arabia	137.40

Ranking Countries by GRE Scores



ETS has produced an analysis of the scores for the Graduate Record Exam required for entry into US graduate schools. Among the more interesting tables are the scores by nationality for the general test, composed of verbal reasoning, quantitative reasoning and analytical writing. This could be regrded as a crude measure of a country's undergraduate education system although clearly there are all sorts of factors that would blur the picture.

Here are mean scores for quantitative skills  by country.

1	Hong Kong	169.50
2	China	162.90
3	Singapore	160.30
4	Taiwan	159.20
5	Vietnam	158.90
6	Turkey	158.70
7	South Korea	158.20
8	Macao	158.00
9	France	157.50
10	Belgium	157.10
11	Czech Republic	156.90
12	Israel	156.70
13	Switzerland	156.70
14	Netherlands	156.60
15	Greece	156.40
16=	Bulgaria	156.30
16=	Japan	156.30
18	Hungary	156.20
19	Australia	155.70
20	Germany	155.50
21=	Russia	155.30
21=	Thailand	155.30
23=	Belarus	154.80
23=	Romania	154.80
25=	Bangladesh	154.70
25=	Lithuania	154.70
27	Malaysia	154.60
28=	Eritrea	154.50
28=	Iceland	154.50
28=	Tunisia	154.50
31=	New Zealand	154.40
31=	Ukraine	154.40
33	Latvia	154.30
34	Sri Lanka	154.20
35=	Austria	154.10
35=	India	154.10
35=	Italy	154.10
38=	Indonesia	154.00
38=	Moldova	154.00
40=	Armenia	153.80
40=	Ireland	153.80
42=	Cyprus	153.70
42=	Argentina	153.60
44	Canada	153.60
45=	Nepal	153.50
45=	Portugal	153.50
45=	US Asian	153.50
48=	Albania	153.40
48=	Mongolia	153.40
50=	Croatia	153.30
50=	Egypt	153.30
52	Poland	153.20
53=	Norway	153.10
53=	Pakistan	153.10
53=	Spain	153.10
56	UK	152.90
57=	Denmark	152.80
57=	Kazakhstan	152.80
59=	Chile	152.70
59=	Syria	152.70
61=	Azerbaijan	152.60
61=	Macedonia	152.60
61=	Serbia	152.60
61=	Sweden	152.60
65	Myanmar	152.40
66	Peru	152.30
67=	Turkmenistan	152.20
67=	Uzbekistan	152.20
69	Jordan	151.90
70=	Estonia	151.80
70=	Ethiopia	151.80
70=	Morocco	151.80
73	Georgia	151.60
74	Finland	151.50
75=	South Africa	151.30
75=	Uruguay	151.30
77	Bolivia	150.80
78	Brazil	150.50
79	US White	150.40
80	Bosnia - Herzog	150.10
81	Venezuela	150.00
82=	Benin	149.70
82=	Costa Rica	149.70
84	USA	149.50
85	Colombia	149.40
86	Mexico	149.30
87=	Bahrain	149.20
87=	Zimbabwe	149.20
89	Philippines	149.10
90	Trinidad	148.80
91=	Ecuador	148.60
91=	Panama	148.60
91=	UAE	148.60
91=	Yemen	148.60
95=	Algeria	148.50
95=	Sudan	148.50
97=	Guatemala	148.30
97=	Kyrgyzstan	148.30
99	Cote d' Ivoire	148.10
100	Togo	148.00
101	Qatar	147.90
102	Barbados	147.80
103	Rwanda	147.60
104=	El Salvador	147.50
104=	Honduras	147.50
106=	Ghana	147.40
106=	Nigeria	147.40
108	Cuba	147.30
109=	Kenya	147.10
109=	US American Ind	147.10
111	US Hispanic	147.00
112	Cameroon	146.90
113=	Burkina Faso	146.80
113=	Niger	146.80
113=	Zambia	146.80
116=	Dominican Repub	146.50
116=	Guyana	146.50
116=	Kuwait	146.50
116=	Tanzania	146.50
116=	US Mexican	146.50
121=	Uganda	145.90
121=	US Porto Rican	145.90
123	Jamaica	145.80
124	Oman	145.40
125	Senegal	145.30
126	St Lucia	145.20
127	Congo DR	145.10
128	Nicaragua	144.50
129=	Afghanistan	144.20
129=	Haiti	144.20
131	Mali	144.00
132	Malawi	143.90
133=	Bahamas	143.70
133=	Sierra Leone	143.70
135	US Black	143.10
136	Saudi Arabia	142.80
137	Congo Republic	142.40
138	Namibia	140.20

More Rankings on the Way

Soon it will be springtime in the Northern hemisphere and spring would not be complete without a few more rankings.

The Times Higher Education reputation rankings will be launched in early March at the British Council's Going Global conference in Dubai.

“Almost 50,000 academics have provided their expert insight over just three short annual rounds of the survey, providing a serious worldwide audit of an increasingly important but little-understood aspect of global higher education – a university’s academic brand.”
This year’s reputation rankings will be the based on the 16,639 responses, from 144 countries, to Thomson Reuters’ 2012 Academic Reputation Survey, which was carried out during March and April 2012. The 2011 survey attracted 17,554 responses, and 2010’s survey attracted 13,388 respondents.

The survey is by invitation only and academics are selected to be statistically representative of their geographical region and discipline. All are published scholars, questioned about their experiences in the field in which they work. The average time this year’s respondents spent working in the sector was 17 years. '

Meanwhile, the QS ranking of 30 subjects is coming soon. Until now these have been based on varying combinations of employer opinion, academic opinion and citations. This year they will be adding  an indicator based on the h-index.

Here is a definition from Wikipedia:

"The index is based on the distribution of citations received by a given researchers publications. Hirsch writes:

A scientist has index h if h of his/her N_p papers have at least h citations each, and the other (N_p − h) papers have no more than h citations each.

In other words, a scholar with an index of h has published h papers each of which has been cited in other papers at least h times.^[2] Thus, the h-index reflects both the number of publications and the number of citations per publication. The index is designed to improve upon simpler measures such as the total number of citations or publications. The index works properly only for comparing scientists working in the same field; citation conventions differ widely among different fields.
The h-index serves as an alternative to more traditional journal impact factor metrics in the evaluation of the impact of the work of a particular researcher. Because only the most highly cited articles contribute to the h-index, its determination is a relatively simpler process. Hirsch has demonstrated that h has high predictive value for whether a scientist has won honors like National Academy membership or the Nobel Prize. "

This means that one paper cited once produces an index of 1, 20 papers cited 20 times an index of 20, 100 papers cited 100 times an index of 100 and so on.

The point of this is that it combines productivity and quality as measured by citations and reduces the effect of extreme outliers. This is definitely an improvement for QS.

Freedom Indicator?

It is often argued  that the quality of a a university has something to do with academic freedom. Some Western academic have become noticeably self-righteous about respect for human rights in other countries. There have been criticisms of Yale University's links with Singapore, where gay rights are restricted.

One wonders whether Western campuses should talk so loudly about freedom. A recent incident at Carleton University in Canada suggests that when it comes to human rights some humans are much more equal than others.

Carleton has a freedom wall where students can write thoughts that are forbidden in the rest of the campus, probably even in much or most of Canada. Even this was too much for Arun Smith, a seventh year (yes, that's right) human rights student. From the Macleans On Campus blog:

"Seventh-year Carleton University human rights [apparently human rights and political science with a minor in sexuality studies] student Arun Smith has apparently not been in school long enough to learn that other people have rights to opinions that differ from his. After the “free speech wall” on campus was torn down, he posted a message to his Facebook wall claiming responsibility. “If everyone speaks freely we end up simply reinforcing the hierarchies that are created in our society,” it read. The display had been erected by campus club Carleton Students for Liberty and students were encouraged to write anything they wanted on the paper. Someone wrote “abortion is murder” and “traditional marriage is awesome.” GBLTQ Centre volunteer Riley Evans took offense, telling The Charlatan student newspaper that the wall was attacking those who have had abortions and those in same-sex relationships."

It appears that Arun Smith has been widely condemned and that he will be punished. What seems to have been passed over is that it is apparently necessary to have a wall where mainstream religious opinions can be expressed. Yes, I know that "abortion is murder" is a gross simplification of a complex philosophical issue but whose fault is it that it has to be expressed in three words?

The Justice Centre for Constitutional Freedoms has issued a Campus Freedom Index for Canadian universities. Unsurprisingly, Carleton gets a C and 3 Fs. The best appears to be St Thomas with one A and three Bs

What about an international edition?

The Commission Strikes Back

Jordi Curell from the European Commission's Directorate General for Education and Culture has written in defence of the proposed U-multirank university ranking system. He starts:

"Is Times Higher Education worried about competition to its world university ranking from U-Multirank? It looks like it from the tone of its reporting on the new European ranking initiative launched in Dublin at the end of January. "

He concludes:

"However, the EU should not finance U-Multirank forever; this should be limited to the start-up phase. That is why the contract for delivering the ranking includes the design of a self-sustaining business plan and organising the transition to this model.

These are challenging times for higher education in Europe, and the purpose behind U-Multirank could not be clearer. Our objective is improving the performance of Europe's higher education systems – not just selling newspapers."
 

 By the way, THE is a magazine now, not a newspaper.

Wasting Money

The League of European Research Universities claims to be upset about the 2 million Euros that the Europan Uniion is spending on its proposed multi-dimensional university ranking. What do they or their American counterpartsthink about things like this?

"The president [of the US] will invest $55 million in a new First in the World competition, to support the public and private colleges and non-profit organizations as they work to develop and test the next breakthrough strategy that will boost higher education attainment and student outcomes. The new program will also help scale-up those innovative and effective practices that have been proven to boost productivity and enhance teaching and learning on college campuses."

Update on U-Multirank

Using data supplied by institutions is not a good idea for any international ranking. Apart from questions of reliability and objectivity, there is always the possibility of "conscientious objectors" disrupting the ranking process by refusing to take part.

The League of European Research Universities has just announced that it will not participate in the European Union's proposed multi-dimensional ranking project.

Membership of the League is by invitation only and "is periodically evaluated against a broad set of quantitative and qualitative criteria, such as research volume, impact and funding, strengths in PhD training, size and disciplinary breadth, and peer-recognised academic excellence." At the moment , it includes Oxford, Cambridge, Heidelberg, Geneva and Strasbourg universities.

According to Times Higher Education

'Kurt Deketelaere, secretary-general of Leru, said the organisation, whose members include the universities of Oxford, Cambridge and Edinburgh, believes the project is ill-conceived and poorly designed.

"We consider U-Multirank at best an unjustifiable use of taxpayers' money and at worst a serious threat to a healthy higher education system," he said. "Leru has serious concerns about the lack of reliable, solid and valid data for the chosen indicators in U-Multirank, about the comparability between countries, about the burden put upon universities to collect data and about the lack of 'reality-checks' in the process thus far."'

Considering the sort of thing that European universities spend texpayers' money on, 2 million Euros seem comparatively trivial. There are no doubt genuine concerns about the reliability of data produced by institutions and comparability between countries but if you can swallow the camel of Rice University and Moscow Engineering Physics Institute as the best in the world for research influence according to Times Higher and Thomson Reuters, then why strain at U-Multirank's gnats?

And as for a serious threat to higher education, I think someone should sit down for a few minutes and have a cup of tea before making any more statements.

Another Ranking on the Way

The European Union has just launched its U- Multirankranking system. Data will be collected during 2013 and the results will be out in 2014.

According to the European Commissioner for Education the aim is to to provide a multi-dimensional analysis of institutions rather than one that emphasises research excellence.

It is certainly true that the prominent international rankings focus largely or almost entirely  on research. The Shanghai rankings are all about research except perhaps the 10 percent for Nobel and Field awards given to alumni. The QS rankings have a weighting at least 60 per cent for research (citations per faculty and academic survey) and maybe more since research only faculty are counted in the faculty student ratio. Times Higher Education allocates 30 percent for research influence (citations) and 30 percent for research (volume, income and reputation). Since the scores for the citations indicators are substantially higher than those for the others  it can carry an even greater weight for many universities.  Rankings that measure other significant parts of a university’s mission might therefore fill an obvious gap.

But the new rankings are going to rely on data submitted by universities. What happens if several major institutions, including perhaps many British ones, decline to take part?

 

Article in the Chronicle of Higher Education

The Chronicle of Higher Education has an article by Debra Houry on university rankings. She makes some pertinent comments although her recommendations at the end are either impractical or likely to make things worse.

She points out that several American colleges have been found to have submitted inflated data to the US News and World Report in order to boost their standing in the rankings and notes that "there is an inherent conflict of interest in asking those who are most invested in the rankings to self-report data."

This is true and is even more true of international rankings. One reason why the Shanghai rankings are more credible than those produced by QS and Times Higher Education is that they rely entirely on reasonably accessible public data. Using information provided by institutions is a risky business which, among other things, could lead to universities refusing to cooperate, something which ended the promising Asiaweek rankings in 2001.

She then argues that measures of student quality such as high school class rank and SAT scores should be abandoned because they "discourage colleges from selecting a diverse student body. An institution that begins accepting more African-American students or students from low-income families—two groups that have among the lowest SAT scores, according to the College Board—might see its ranking drop because the average SAT score of its freshmen has gone down."

True, but on the other hand an institution that puts more emphasis on standardized test scores might rise in the rankings and might also increase its intake of Asian students and so become more diverse. Are Asian students less diverse than African- Americans? They are certainly likely to be far more varied in terms of mother tongue, political opinions or religious affiliation.

She also points out that it is now a bit late to count printed books in the law school rankings and wonders about using ratemyprofessor to assess teaching quality.

Then there is a familiar criticism of the QS Stars rating systems.

Professor Houry also makes the common complaint that the rankings do not capture unique features of institutions such as "a program called Living-Learning Communities, which gives upperclassmen at Emory incentives to live on campus and participate in residential learning. But you would never learn about that from the ranking formulas."

The problem is that a lot of people are interested in how smart graduates are or how much  research, if any, faculty are doing or how much money is flowing in. But seriously, what is so interesting about upperlassmen living on campus? In any case if this is unique would you expect  any measure to "capture" it.

Finally she concludes "ranking organizations should develop more-meaningful measures around diversity of students, job placement, acceptance into professional schools, faculty membership in national academies, and student engagement. Instead of being assigned a numerical rank, institutions should be grouped by tiers and categories of programs. The last thing students want is to be seen as a number. Colleges shouldn't want that, either."

But all of these raise more problems than solutions. If we really want diversity of students shouldn't we counting counting conservative students  or evangelical Christians? Job placement raises the possibility, already found in law school rankings, of counting graduates employed in phony temporary jobs or glorified slave labor (internships). Membership in national academies? A bit elitist, perhaps?

The Last Print Issue of Newsweek

At the end of the last print issue of Newsweek (31/12/12) is a special advertising feature about the Best Colleges and Universities in Asia, Korea, Vietnam, Hong Kong, Japan and the USA.

The feature is quite revealing about how the various global rankings are regarded in Asia. There is nothing about the Shanghai rankings, the Taiwan rankings, Scimago, Webometrics, URAP or the Leiden Ranking.

There are five references to the QS rankings one of which calls them "revered" (seriously!) and another that refers to the "SQ" rankings.

There are two to Times Higher Education, two to America's Best Colleges, one to Community College Weekly and one to the Korean Joongang Daily university rankings.

A Bit More on the THE Citations Indicator

I have already posted on the citations (research influence) indicator in the Times Higher Education World University Rankings and how it can allow a few papers to have a disproportionate impact. But there are other features of this indicator that affect its stability and can produce large changes even if there is no change in methodology.

This indicator has a weighting of 30 percent. The next most heavily weighted indicator is the research reputation survey which carries a weighting of 18 percent and is combined with number of publications (6 percent) and research income (6 percent) to produce a weighting of 30 percent for research: volume, income and reputation.

It might  be argued that the citations indicator accounts for only 30 percent of the total weighting so that anomalously high scores given to obscure or mediocre institutions for citations would be balanced or diluted by scores on the other indicators which have a weighting of 70 percent.

The problem with this is that  the scores for the citation indicator are often substantially higher than the scores for other indicators, especially in the 300 - 400 region of the rankings so that the impact of this indicator is correspondingly increased. Full data can be found on the 2012-13 iPhone app.


For example, the University of Ferrara in 378th place with a score of 58.5 for citations has a total score of 31.3 so that nearly 60% of its total score comes from the citations indicator. King Mongkut's Unversity of Technology, Thonburi,  in 389th place has a score of 68.4 for citations but its total score is 30.3 so that two thirds of its total score comes from citations. Southern Methodist University in 375th place gets 67.3 for citations which after weighting comes close to providing two thirds of its overall score of 31.6. For these universities a proportional change in the final processed score for citations would have a greater impact than a similar change in any of the other indicators.

Looking at the bottom 25 universities in the top 400, in eight cases the citation indicator provides half or more of the total score and in 22 cases it provides a third or more. Thus, the indicator could have  more impact on total scores than its weighting of 30 percent would suggest.
 


It is also  noticeable that the mean score for citations of the THE top 400 universities is much higher than that for research, about 65 compared to about 41.This disparity is especially large as we reach the 200s and the 300s.

So we find Southern Methodist University has a score of 67.3 for citations  but 9.0 for research.Then  the University of Ferrara  has a score of 58.5 for citations and 13.0 for research. King Mongkut's University of Technology, has a score of 68.4 for citations and 10.2 for research.


One reason why the scores for the citations indicator are so high is the "regional modification" introduced by Thompson Reuters in 2011. To simplify, this means that the number of citations to a university in a given year and a a given field is divided by the square root of the average number of citations in the field and year for all universities in the country

So if a university in country A receives 100 citations in a certain year of publication and in a certain field and the average impact for that year and field for all universities is 100 then the university will get a score of 10 (100 divided by 10). If a university in country B receives 10 citations in the same year and the same field then but the average impact from all universities in the country is 1 then the citations score for that field year would also be 10 (10 divided by 1).

This drastically reduces the gap for citations between countries that produce many citations and those that produce few. Thompson Reuters justify this by saying that in some countries it is easier to get grants and to travel and  join the networks that lead to citations and international collaborations than in others. The problem with this is that it can produce some rather dubious results.

Let us consider the University of Vigo and the University of Surrey. Vigo has an overall score of 30.7 and is in 383rd place. Surrey is just behind with a score of 30.5 and is 388th place.

But, with the exception of citations Surrey is well  ahead of Vigo for everything: teaching (31.1 to 19.4), international outlook (80.4 to 26.9), industry income (45.4 to 36.6) and research (25.0 to 9.5).

Surrey, however, does comparatively badly for citations with a score of only 21.6. It does have a contribution to the massively cited 2008 review of particle physics but the university has too many publications for this review to have much effect. Vigo however has a score of 63.7 for citations which may be because of a much cited paper containing a new algorithm for genetic analysis but also presumably because it received, along with other Spanish and Portuguese-speaking universities, a boost from the regional modification.

There are several problems with this modification. First, it can contribute another element of instability. If we observe a university's score for citations has declined it could be because its citations have decreased overall or in key fields or because a much cited paper has slipped out of the five year  period of assessment. It could also be that the number of publications has increased without a corresponding increase in citations.

Applying the regional modification could mean that a university's score would be affected by the fluctuations in the impact of the country's universities as a whole. If there was an increase in the number of citations or reduction in publications nationally then this would reduce the citations score of a particular university since the university's score would be divided by the square root of a larger number.

This could lead to the odd situation where stringent austerity measures lead to the emigration of talented researchers and eventually a fall in citations but some universities in the country may improve since they are being compared to a smaller national average.

The second problem is that it can lead to misleading comparisons. It would be a mistake to conclude that Vigo is a better university than Surrey or about the same or even that its research influence is more significant. What has happened is that is that Vigo is more ahead of the Spanish average than Surrey is ahead of the British.

Another problematic feature of the citations indicator is that its relationship with the research indicator is rather modest. Consider that 18 out of 30 points for research are from the reputation survey whose respondents are drawn from those researchers whose publications are in the ISI databases while the citations indicator counts citations in precisely those papers. Then another 6 percent goes to research income which we would expect to have some relationship with the the quality of research.

Yet the correlation between the scores for research and citations for the top 400 universities is modest at .409 which calls into question the validity of one of the indicators or both of them.

A further problem is that this indicator only counts the impact of papers that make it into an ISI database. A university where most of the faculty do not publish in ISI indexed journals would do no worse than one where there was a lot of publications but not many citations or not many citations in low cited fields.

To conclude, the current construction of the citations indicator has the potential to produce anomalous results and to introduce a significant degree of instability into the rankings.

QS Stars Again

The New York Times has an article by Don Guttenplan on the QS Stars ratings which award universities one to five stars according to eight criteria, some of which are already assessed by the QS World University Rankings and some of which are not. The criteria are teaching quality, innovation and knowledge transfer, research quality, specialist subject, graduate employability, third mission, infrastructure and internationalisation. 

The article has comments from rankings experts Ellen Hazelkorn, Simon Marginson and Andrew oswald.

The QS Stars system does raise issues about commercial motivations and conflict of interests. Nonetheless, it has to be admitted that it does fill a gap in the current complex of international rankings. The Shanghai, QS and Times Higher Education rankings may be able to distinguish between Harvard and Cornell or Oxford and Manchester but they rank only a fraction of the world's universities. There are national ranking and rating systems but so far anyone wishing to compare middling universities in different countries has very little information available.

There is, however, the problem that making distinction among little known and mediocre universities, a disproportionate number of which are located in Indonesia,  means a loss of discrimination at the top or near top. The National University of Ireland Galway, Ohio State University and Queensland University of Technology get the same five stars as Cambridge and Kings College London.

The QS Stars has potential to offer a broader assessment of university quality but it would be better for everybody if it was kept completely separate from the QS World University Rankings.