Data protection information

Graduate Survey

  • Where does my address data come from?

    The addresses of graduates at the time of completion of study are collected and stored by the University in electronic form on the basis of the statute on the collection and processing of personal data. As some graduates may have changed addresses a year after the completion of study, if necessary, the addresses are updated in the course of an enquiry (e.g., with the aid of citizen registration offices or the Internet).

  • Why is the University allowed to use my address data for the graduate survey?

    Address data may only be transferred and used within the University when such actions serve the fulfilment of scientific tasks and/or the tasks of the University. Both conditions are fulfilled by this graduate survey:

    • The graduate survey at Leibniz University Hannover is part of a country-wide research project of between 50 and 60 German universities which was supported by the Federal Ministry for Education and Research (BMBF) from 2009 to 2012 and is coordinated by the Kassel Institute for Applied Statistics (ISTAT) (and previously by INCHER-Kassel). Here, within the framework of the country-wide cooperative project for graduate surveys, ISTAT creates an overall data set which contains the results given by all graduates of the universities involved in the project and evaluates the anonymised data exclusively for scientific purposes within the framework of universities and graduates research.
    • The information of and about graduates is a central pillar of quality development at the University. The administration, specialist areas and central facilities take the results into consideration, discuss them and derive targeted improvements as necessary.

    The saved address data is used for no other purposes than for invitation to, reminders about and drawing the prize for the graduate survey. The processing of this address data is carried out exclusively by employees of the ZQS, student and graduate surveys department. 

    All employees who have access to the personal data in the course of the project are subject to the valid data protection laws. In this regard, the transfer of address data to third parties (even within the University) is strictly forbidden and the prohibition remains valid even when the employees no longer work at the University.

  • When is my address data deleted?

    The address data collected for the survey is deleted at the latest nine months after the end of the survey.

    The entries made by you (surname, first name & email address) will be deleted after the prize draw and after the prize is presented, and at the latest two months after the end of the survey.

  • Participation in the draw

    The registration data (surname, first name, email) submitted via the form will be used exclusively for processing your participation in the draw for the KOAB graduate survey. Your data will not be connected to the responses from the survey, nor forwarded to third parties. Participation in the draw is not possible without the transmission of data.

    Your surname, first name and email address will be saved until the end of the draw and deleted within two months after the survey has been completed.

    The legal basis for the processing of data is your consent in accordance with Article 6(1)(a) of the General Data Protection Regulation (GDPR).

    You may withdraw your consent at any time. The withdrawal of consent shall not affect the lawfulness of processing based on consent before its withdrawal. You may send your withdrawal of consent by post to Leibniz University Hannover, ZQS, Callinstraße 14, 30167 Hannover or by email to Agnieszka Dudzinska ( You will incur no other costs than the postage or transmission costs based on the current basic rates.

    In accordance with Article 15 GDPR, you are entitled at any time to request comprehensive information from the Centre for Quality Enhancement in Teaching and Learning (ZQS) about the personal data concerning you that it has saved.

    In accordance with Articles 16, 17 and 18 GDPR, you may at any time request the Centre for Quality Enhancement in Teaching and Learning (ZQS) to rectify, erase and block access to any and/or all personal data.

    Once the consent to process your data has been withdrawn, and once your data has been erased or blocked, participation in the draw will no longer be possible.

    In addition, you may receive your data in a commonly used, structured and machine-readable format, and transmit these data without hindrance from us to another controller in the cases specified in Article 20 GDPR.

    Furthermore, you are entitled to file a complaint with the relevant supervisory authority if you believe that the processing of your personal data infringes the legislation. The competent supervisory authority is:

    Die Landesbeauftragte für den Datenschutz in Niedersachsen
    Prinzenstr. 5
    30159 Hannover
    phone +49 511 120 4500
    fax +49 511 120 4599

    Further information can also be obtained from the general Privacy Statement of Leibniz University Hannover:


    Responsibility and contact details

    The responsible body in accordance with Article 13(1)(a) GDPR is:

    Leibniz University Hannover
    Centre for Quality Enhancement in Teaching and Learning (ZQS)
    Martina Vanden Hoeck
    Callinstraße 14
    30167 Hannover
    phone +49 511 762 5898

    The Data Protection Officer in accordance with Article 13(1)(b) GDPR is:

    Leibniz University Hannover
    Data Protection Officer
    Königsworther Platz 1
    30167 Hannover
    phone +49 511 762 8132
    fax: +49 511 762 8258

  • What is the access code for

    Every graduate will be given a randomly generated access code. This code has several functions:

    • using the code, the respondents can take part in the online survey (this provides adequate protection against so-called “third-party respondents”).
    •  By checking the access codes used, a determination can be made of who has already answered. No (further) reminders will then be sent to these graduates reminding them to take part in the survey.
    • Using the code, you can take a break from answering the online survey at any time and continue at a later date by entering your access code once again.
    • For the second survey (panel) using the codes, the data from the first survey is combined with those of the second one. In this way, so-called “longitudinal data” can be created which delivers case-related data over a time series. This connection of the answers from both surveys does not, however, lead to connections with your personal data (name, address etc.). The answers from the surveys are thus never de-anonymised at any time.
  • What happens during the online survey?

    To take part in the online survey, sign in online using your access code.
    Your answers will be saved first on a server belonging to the Institute for Applied Statistics (ISTAT). The survey data is always sent over encrypted connections.

    Towards the end of the online survey, you will be asked if you want to take part in a follow-up survey. If you answer YES to this question you will be asked to enter your address data. The address data is saved on a separate ISTAT server. Your address data is never saved in a single file with your survey data. Thus, the survey data remains completely anonymous during the entire period of the survey. After completion of the survey phase, the survey data is prepared by ISTAT and statistically evaluated in the course of university and graduate research. The address data for the follow-up study is transferred to a CD-ROM after the end of the survey and deleted from the ISTAT server. ISTAT uses your addresses exclusively for the stated purpose (participation in the follow-up survey).

    At the end of the survey, you will be asked if you want to take part in a prize draw. To contact the winners, we need email addresses. These are stored in a separate form on a server belonging to Leibniz University Hannover and are deleted one month after the prize draw. They are not connected to the data from the online survey.

  • What is the ISTAT Kassel?

    The Institute for Applied Statistics (ISTAT) is a foundation of the International Centre for Higher Education Research in Kassel (INCHER). INCHER is an interdisciplinary research facility of the University of Kassel which has been active in universities research for 30 years and has achieved great recognition in this field worldwide. INCHER coordinated the KOAB up until 2017 but then considered itself forced to give up coordination of the project because of particular circumstances, such as the requirements of the Temporary Research Contracts Law, the limiting conditions of third-party-funded university research and the tension between research and service projects. By spinning off the Institute for Applied Statistics (ISTAT), INCHER has created the possibility of continuing to provide universities with the expertise gained over the years of the project.

    ISTAT considers itself a scientific institute carrying out both scientific and commissioned research. You can find further information on the websites of the KOAB and ISTAT. All ISTAT staff are also subject to the data protection law in force.

  • Publications

    ISTAT creates an overall university data set containing all the answers of all respondents from the universities involved in the project. This anonymised data is exclusively used for scientific purposes in the course of university and graduate research and the corresponding results published. In all ISTAT publications, the data cannot be traced back to individual universities or persons.

    Leibniz University Hannover’s results are only ever published by the ZQS/quality assurance in aggregated form as a report, one which does not allow inferences to be made about individual persons.

  • Who can I talk to if I have further questions?

    For queries, please contact

    Ms Agnieszka Dudzinska

    Tel. +49 511.762 - 19462

    You can find further information on the graduate survey on the homepage for the survey at Leibniz University Hannover and on the Homepage of ISTAT for the country-wide joint graduate survey project.