Search staff/organisations dr. JV Meijering MSc
Namedr. JV Meijering MSc

Job details
OrganizationDepartment of Plant Sciences
Organization UnitMathematical and Statistical Methods - Biometris
Phone+31 317 482 492
Mobile+31 6 46427870
Secretarial phone+31 317 484 085
Phone 2
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Visiting addressDroevendaalsesteeg 1
Postal addressPostbus 16
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    Mar 2022 - Present


I'm a lecturer and researcher within the group Biometris of Wageningen University. My research is focussed on the methodological issues of the Delphi method; a method whereby data are collected from experts in a number of subsequent rounds with the aim of facilitating the experts to achieve agreement on a certain topic. I also study the opportunities and challenges of the Delphi method for developing rankings (among others: urban sustainability rankings). Additionally, Í'm an experienced lecturer and consultant in research methodology.

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Project title: "The Delphi method: Methodological issues and its application to the development of rankings".

The Delphi method is a structured data-collection process aimed at acquiring a certain level of agreement among experts on a given topic. A Delphi study consists of at least two rounds in which experts are independently questioned about their opinion by means of a standardized questionnaire. To avoid undue influence of dominant experts and group pressure, experts are anonymous and are not allowed to communicate with each other. Instead, the researcher provides controlled opinion feedback to the experts in the form of a summary of the results from the previous round. Based on this feedback, experts may revise their opinion in the next round. A Delphi study usually ends when a desired level of agreement has been achieved or when a certain stability in experts’ responses has been reached

The Delphi method seems to provide opportunities for developing rankings. However, research into its application to the development of rankings seems to be non-existent. Furthermore, the Delphi method has several unresolved methodological issues (concerning among others: the measurement of agreement and the effect of controlled opinion feedback on Delphi results). Therefore, this PhD project aims to improve the methodology of the Delphi method and to investigate its application to the development of rankings (among others: European green city rankings).


As a lecturer I teach (international) students of Wageningen University (BSc and MSc level) about Research Methodology. I currently teach two courses: Research Methods in the Social Sciences & Qualitative and Quantitative Research Techniques in the Social Sciences. I also consult master students about the methodology of their research projects.

  • YRM-10306 - Research Methods in the Social Sciences
  • YRM-20306 - Research Methodology in Environmental Science
  • YRM-21306 - Research Methodology for Human Environment Interactions
  • YRM-65000 - Observation Techniques
  • YSS-20306 - Quantitative and Qualitative Research Techniques in the Social Sciences
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