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Thed N. van Leeuwen

Thed N. van Leeuwen

D-Index & Metrics

Social Sciences and Humanities

D-Index
49
Citations
9867
World Ranking
2945
National Ranking
118

Computer Science

D-Index
45
Citations
8857
World Ranking
7167
National Ranking
115

Thed N. van Leeuwen publication distribution in Social Sciences and Humanities in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Social Sciences and Humanities in 2026. The highlighted bar marks where Thed N. van Leeuwen sits on this spectrum.

44–53 publications: 28 scientists 54–63 publications: 61 scientists 64–73 publications: 161 scientists 74–83 publications: 225 scientists 84–93 publications: 301 scientists 94–103 publications: 390 scientists 104–113 publications: 406 scientists 114–123 publications: 474 scientists 124–133 publications: 453 scientists 134–143 publications: 434 scientists 144–153 publications: 407 scientists 154–163 publications: 411 scientists 164–173 publications: 391 scientists 174–183 publications: 313 scientists 184–193 publications: 319 scientists 194–203 publications: 304 scientists 204–213 publications: 285 scientists 214–223 publications: 246 scientists 224–233 publications: 213 scientists 234–243 publications: 170 scientists 244–253 publications: 167 scientists 254–263 publications: 162 scientists 264–273 publications: 138 scientists 274–283 publications: 138 scientists 284–293 publications: 113 scientists 294–303 publications: 106 scientists 304–313 publications: 95 scientists 314–323 publications: 101 scientists 324–333 publications: 81 scientists 334–343 publications: 69 scientists 344–353 publications: 56 scientists 354–363 publications: 36 scientists 364–373 publications: 42 scientists 374–383 publications: 41 scientists 384–393 publications: 44 scientists 394–403 publications: 27 scientists 404–413 publications: 30 scientists 414–423 publications: 20 scientists 424–433 publications: 29 scientists 434–443 publications: 29 scientists 444–453 publications: 25 scientists 454–463 publications: 19 scientists 464–473 publications: 21 scientists 474–483 publications: 11 scientists 484–493 publications: 17 scientists 494–503 publications: 7 scientists 504–513 publications: 6 scientists 514–523 publications: 12 scientists 524–533 publications: 10 scientists 534–543 publications: 7 scientists 544–553 publications: 6 scientists 554–563 publications: 12 scientists 564–569 publications: 8 scientists 570+ publications: 100 scientists
44 publications 570+

This scientist: 121 publications — 25th percentile

25% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 570 publications or more.

Thed N. van Leeuwen D-index placement in Social Sciences and Humanities in 2026

The chart shows the D-index (discipline H-index) distribution of Social Sciences and Humanities scientists ranked by Research.com in 2026. The highlighted bar marks where Thed N. van Leeuwen sits on this spectrum.

30 D-Index: 177 scientists 31 D-Index: 210 scientists 32 D-Index: 222 scientists 33 D-Index: 188 scientists 34 D-Index: 181 scientists 35 D-Index: 243 scientists 36 D-Index: 261 scientists 37 D-Index: 272 scientists 38 D-Index: 278 scientists 39 D-Index: 300 scientists 40 D-Index: 297 scientists 41 D-Index: 308 scientists 42 D-Index: 313 scientists 43 D-Index: 300 scientists 44 D-Index: 269 scientists 45 D-Index: 260 scientists 46 D-Index: 228 scientists 47 D-Index: 251 scientists 48 D-Index: 203 scientists 49 D-Index: 186 scientists 50 D-Index: 187 scientists 51 D-Index: 166 scientists 52 D-Index: 138 scientists 53 D-Index: 141 scientists 54 D-Index: 131 scientists 55 D-Index: 137 scientists 56 D-Index: 109 scientists 57 D-Index: 129 scientists 58 D-Index: 95 scientists 59 D-Index: 105 scientists 60 D-Index: 106 scientists 61 D-Index: 86 scientists 62 D-Index: 94 scientists 63 D-Index: 77 scientists 64 D-Index: 79 scientists 65 D-Index: 59 scientists 66 D-Index: 68 scientists 67 D-Index: 51 scientists 68 D-Index: 49 scientists 69 D-Index: 40 scientists 70 D-Index: 43 scientists 71 D-Index: 40 scientists 72 D-Index: 50 scientists 73 D-Index: 46 scientists 74 D-Index: 43 scientists 75 D-Index: 45 scientists 76 D-Index: 45 scientists 77 D-Index: 30 scientists 78 D-Index: 25 scientists 79 D-Index: 31 scientists 80 D-Index: 29 scientists 81 D-Index: 18 scientists 82 D-Index: 21 scientists 83 D-Index: 26 scientists 84 D-Index: 15 scientists 85 D-Index: 15 scientists 86 D-Index: 19 scientists 87 D-Index: 19 scientists 88 D-Index: 12 scientists 89 D-Index: 7 scientists 90 D-Index: 19 scientists 91 D-Index: 20 scientists 92 D-Index: 13 scientists 93 D-Index: 9 scientists 94 D-Index: 13 scientists 95 D-Index: 8 scientists 96 D-Index: 7 scientists 97 D-Index: 6 scientists 98 D-Index: 6 scientists 99 D-Index: 6 scientists 100+ D-Index: 97 scientists
30 D-Index 100+

This scientist: 49 D-Index — 64th percentile

64% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 100 D-Index or more.

Overview

Thed N. van Leeuwen is affiliated with Leiden University in the Netherlands. Their primary area of research lies in Decision Sciences, with a focus on scientometrics and bibliometrics research. Thed has contributed extensively to topics such as Research Data Management Practices, Academic Publishing and Open Access, Health and Medical Research Impacts, Misinformation and Its Impacts, Meta-analysis and systematic reviews, and Data Quality and Management.

Thed's frequent publication venues include:

  • Zenodo (CERN European Organization for Nuclear Research)
  • arXiv (Cornell University)
  • Research Evaluation
  • bioRxiv (Cold Spring Harbor Laboratory)
  • Scientometrics

Several recent papers illustrate the scope of Thed's work. These include:

  • Open Access uptake by universities worldwide (2020, PeerJ)
  • A scientometric overview of CORD-19 (2021, PLoS ONE)
  • Community consensus on core open science practices to monitor in biomedicine (2023, PLoS Biology)
  • A scientometric overview of CORD-19 (2020, bioRxiv (Cold Spring Harbor Laboratory))
  • The relationship between parenting engagement and academic performance (2022, Scientific Reports)

Thed has collaborated regularly with several co-authors, including Rodrigo Costas, Nicolás Robinson-García, Ludo Waltman, Verena Weimer, and Tamara Heck. These collaborations have resulted in multiple publications across their main and subfields of study.

Thed's subfields of study include Statistics, Probability and Uncertainty; Information Systems; Sociology and Political Science; Public Health, Environmental and Occupational Health; and Information Systems and Management. Their multidisciplinary approach connects quantitative and social scientific dimensions of research evaluation and management.

Best Publications

  • New bibliometric tools for the assessment of national research performance: Database description, overview of indicators and first applications

    Henk F. Moed;R. E. De Bruin;Thed N. van Leeuwen

  • Language biases in the coverage of the Science Citation Index and its consequencesfor international comparisons of national research performance

    Thed N. Van Leeuwen;Henk F. Moed;Robert J. W. Tijssen;Martijn S. Visser

  • The Leiden ranking 2011/2012: Data collection, indicators, and interpretation

    Ludo Waltman;Clara Calero-Medina;Joost Kosten;Ed C.M. Noyons

  • Towards a new crown indicator: Some theoretical considerations

    Ludo Waltman;Nees Jan van Eck;Thed N. van Leeuwen;Martijn S. Visser

  • The Psychology of Morality: A Review and Analysis of Empirical Studies Published From 1940 Through 2017:

    Naomi Ellemers;Jojanneke van der Toorn;Jojanneke van der Toorn;Yavor Paunov;Thed van Leeuwen

  • The application of bibliometric analyses in the evaluation of social science research. Who benefits from it, and why it is still feasible

    Thed N. van Leeuwen

  • Benchmarking international scientific excellence: Are highly cited research papers an appropriate frame of reference?

    Robert J. W. Tijssen;Martijn S. Visser;Thed N. van Leeuwen

  • The Holy Grail of science policy: Exploring and combining bibliometric tools in search of scientific excellence

    Thed N. Van Leeuwen;Martijn S. Visser;Henk F. Moed;T. O. N. J. Nederhof

  • Impact factors can mislead.

    H. F. Moed;Th. N. van Leeuwen

  • Towards a new crown indicator: an empirical analysis

    Ludo Waltman;Nees Jan Eck;Thed N. Leeuwen;Martijn S. Visser

  • Some modifications to the SNIP journal impact indicator

    Ludo Waltman;Nees Jan van Eck;Thed N. van Leeuwen;Martijn S. Visser

  • A bibliometric classificatory approach for the study and assessment of research performance at the individual level: The effects of age on productivity and impact

    Rodrigo Costas;Thed N. van Leeuwen;María Bordons

  • A bibliometric classificatory approach for the study and assessment of research performance at the individual level: The effects of age on productivity and impact

    Unknown

  • Measuring knowledge transfer between fields of science

    Ed J. Rinia;Thed N. van Leeuwen;Eppo E. W. Bruins;Hendrik G. van Vuren

  • Technological Relevance of Science: An Assessment of Citation Linkages between Patents and Research Papers

    R. J. W. Tussen;R. K. Buter;Thed N. van Leeuwen

  • Evidence of Open Access of scientific publications in Google Scholar: a large-scale analysis

    Alberto Martín-Martín;Rodrigo Costas;Rodrigo Costas;Thed N. van Leeuwen;Emilio Delgado López-Cózar

  • Self-citations at the meso and individual levels: effects of different calculation methods

    Rodrigo Costas;Thed N. van Leeuwen;María Bordons

  • Interdisciplinary dynamics of modern science: analysis of cross-disciplinary citation flows

    Thed van Leeuwen;Robert Tijssen

  • Approaching the “reward triangle”: General analysis of the presence of funding acknowledgments and “peer interactive communication” in scientific publications

    Rodrigo Costas;Thed N. van Leeuwen

  • Benchmarking university-industry research cooperation worldwide: performance measurements and indicators based on co-authorship data for the world's largest universities

    Robert J W Tijssen;Thed N van Leeuwen;Erik van Wijk

  • A new classification system to describe the ageing of scientific journals and their impact factors

    Henk F. Moed;Thed N. van Leeuwen;Jan Reedijk

Frequent Co-Authors

Rodrigo Costas
Rodrigo Costas Leiden University
Anthony F. J. van Raan
Anthony F. J. van Raan Leiden University
Ludo Waltman
Ludo Waltman Leiden University
Nees Jan van Eck
Nees Jan van Eck Leiden University
Ismael Rafols
Ismael Rafols Leiden University
Henk F. Moed
Henk F. Moed Sapienza University of Rome
María Bordons
María Bordons Spanish National Research Council
Paul Wouters
Paul Wouters Leiden University
Jan Reedijk
Jan Reedijk Leiden University
Jonathan Grant
Jonathan Grant King's College London

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