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PhD research at two universities

In some cases, PhD candidates are permitted to follow a PhD track that involves conducting research and receiving supervision at two institutions: Leiden University and another university. On this page, you can read what forms of agreement there are.

Agreements

Arrangements regarding this joint supervision are set down in an agreement. There are two kinds of agreement:

  1. A single individual agreement for the joint supervision of one PhD candidate and the defence in the presence of one or more joint Examining Committee(s), after which one diploma or two paired diplomas is/are issued on behalf of both institutions;
  2. programme agreement between the two universities for a multiyear partnership in the supervision and examining of multiple PhD candidates of both parties. A programme agreement of this kind also includes individual agreements for the participating PhD candidates, as appendices.
Individual agreement Programme agreement

The PhD defence(s)

Subsequent to joint supervision, the PhD defence can take place in two possible ways:

  1. A single defence in the presence of a joint Examining Committee;
  2. Two defences of the same dissertation in the presence of joint Examining Committees at both institutions (there will be a certain amount of overlap between these Examining Committees).
A single defence Two defences

Please note: at some universities outside the Netherlands, establishing that the manuscript is suitable to be defended also takes place in the presence of a committee; in the Netherlands, this work is done by the Doctorate Committee. For us, establishing defensibility does not count as a defence to which these rules are applicable.

Awarding the doctorate degree

In the case of both individual and programme agreements, the PhD candidates work towards a single degree that is awarded jointly by both parties (a 'joint degree'). The defence(s) of the dissertation take(s) place in the presence of (an) Examining Committee(s) with members from both institutions. We use the term joint degree rather than double degree to emphasise that dual supervision does not lead to two doctorates.

In the case of individual tracks, the PhD defence in principle takes place in Leiden, unless the Doctorate Board consents to a defence at the other institution (the agreement will contain the location of the defence and cannot be signed unless this consent has been given).

Issuing the diploma(s)

There are three options for the diploma(s):

  1. one single Leiden University diploma.
  2. two diplomas, each with one added phrase expressing that the PhD candidate was supervised at both institutions. These are known as 'paired diplomas'. The fact that the diplomas are ‘paired’ emphasises that the two defences result in one single doctorate degree.

               Two diplomas can be issued after:

    1. one successful defence at one of the partner institutions;
    2. two successful defences of the same dissertation at both partner institutions.
  1. one single diploma with two insignias. The Doctorate Board of Leiden University has decided in principle not to cooperate with this, in view of the serious practical challenges and the risk of lower quality of a diploma that has to be produced in two cities and printed with both insignias.

Another possibility is that Leiden presents one diploma issued by Leiden University and the PhD candidate also receives a local diploma at the other institution. We have no objection to this (we do not insist that a paired diploma must always be issued in the case of an individual agreement with one defence).

At the request of the Graduate School, the beadle’s office can issue a supplement with a single Leiden University diploma, declaring that the supervision took place at two institutions. This supplement will actually then be a short version of the individual agreement.

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