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Leiden, South Holland · Founded 1989 · Scientometrics, Open Science & Research Evaluation

CWTS Leiden: Scientometrics, Open Science Policy & Research Analytics Guide

Established in 1989 as an interdisciplinary research center within the Faculty of Social and Behavioural Sciences at Leiden University, the Centre for Science and Technology Studies (CWTS) is globally recognized as the world's preeminent institute for scientometrics, bibliometrics, research evaluation, and open science policy. CWTS authors the influential open-data CWTS Leiden Ranking and advises international governments and universities on research ethics.

Official university portal ↗Graduate Funding & FacultyResearch checked, not sponsored

Verified degree programs and opportunities

Review checked academic pathways and funding options below:

Admissions, language requirements & application process

Master's admission eligibility
Accredited Bachelor's or Master's degree in quantitative social sciences, computer science, data analytics, sociology, or public policy with strong statistical foundations (GPA 3.2/4.0 or Dutch 7.0/10).
Doctoral admission eligibility
Direct doctoral research positions administered in collaboration with Leiden University Graduate School of Social and Behavioural Sciences; requiring a relevant research master and approved scientific proposal.
Language proficiency
TOEFL iBT 100 (minimum 24 in reading and writing), IELTS Academic 7.0 overall (minimum 6.5 in all sub-scores), or Cambridge C1 Advanced.
Research statement / Proposal
Required for doctoral applicants and research fellows: 2,500-word proposal detailing quantitative scientometric models, open science metrics, or science-society interactions.
Application fee
€100 non-refundable application fee for international master's applicants applying via Leiden University portals (0 EUR for PhD employees).
Required documentation
Certified university diploma and transcript of records with English translations, curriculum vitae, academic writing sample, statement of purpose, and two reference letters.

Tuition fees and verified scholarship systems

Tuition at Leiden University for CWTS-affiliated graduate programs is €2,530 per year for Dutch and EU/EEA students (statutory fee), and approximately €17,800 to €19,600 per year for non-EU/EEA international candidates. Doctoral positions are fully funded, salaried university employment appointments earning approximately €2,770 to €3,540 per month.

Verified faculty profiles and research leaders

Distinguished researchers and laboratory heads at CWTS - Centre for Science and Technology Studies:

Prof. Dr. Ludo Waltman

Professor of Quantitative Science Studies & Director of CWTS · Scientometrics, Bibliometric Algorithms, Open Science, Research Evaluation

Prof. Dr. Sarah de Rijcke

Professor of Science, Technology and Innovation Studies & Dean of Social Sciences · Research Governance, Evaluation Cultures, Sociology of Science, Responsible Research Assessment

Dr. Nees Jan van Eck

Senior Researcher in Quantitative Science Studies & Software Architect · Bibliometric Network Algorithms, Data Visualization, VOSviewer Development, Clustering Methodologies

Important verification note

Facts reflect official CWTS - Centre for Science and Technology Studies documentation reviewed 2026-10-15. Degree admissions, scholarship awards, and employment positions are subject to formal university review. OpenField does not charge students application fees.

Reviewed 2026-10-15 · Editorial standards · Report an issue