World's Best Scientists 2026 revealed!

D-Index & Metrics

Social Sciences and Humanities

D-Index
70
Citations
31778
World Ranking
754
National Ranking
143

James Thomas 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 James Thomas 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: 171 publications — 52nd percentile

52% of scientists in this discipline score the same or lower.

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

James Thomas 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 James Thomas 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: 70 D-Index — 90th percentile

90% of scientists in this discipline score the same or lower.

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

Overview

James Thomas is affiliated with University College London in the United Kingdom. Their research output predominantly focuses on the field of Medicine, with a total of 168 publications recorded. Within this field, they have contributed extensively to subfields such as General Health Professions, Statistics, Probability and Uncertainty, Clinical Psychology, Public Health, Environmental and Occupational Health, and Sociology and Political Science.

The primary topics addressed in their work encompass Meta-analysis and systematic reviews, Health Policy Implementation Science, and the Delphi Technique in Research. Other significant subjects include Health Systems, Economic Evaluations, Quality of Life, Biomedical Text Mining and Ontologies, Behavioral Health and Interventions, and Traumatic Brain Injury Research.

The recent papers authored or co-authored by James Thomas include the following:

  • The PRISMA 2020 statement: an updated guideline for reporting systematic reviews (2021, BMJ)
  • The PRISMA 2020 statement: an updated guideline for reporting systematic reviews (2021, Systematic Reviews)
  • The PRISMA 2020 statement: An updated guideline for reporting systematic reviews (2021, International Journal of Surgery)
  • PRISMA 2020 explanation and elaboration: updated guidance and exemplars for reporting systematic reviews (2021, BMJ)
  • The PRISMA 2020 statement: An updated guideline for reporting systematic reviews (2021, PLoS Medicine)

James Thomas frequently collaborates with a group of co-authors, including:

  • Iain Marshall
  • Byron Wallace
  • Benjamin Nye
  • Frank Soboczenski
  • Ani Nenkova

Their publications appear regularly in several venues, most notably:

  • Zenodo (CERN European Organization for Nuclear Research)
  • Wellcome Open Research
  • Journal of Clinical Epidemiology
  • F1000Research
  • OPAL (Open@LaTrobe) (La Trobe University)

Best Publications

  • Methods for the thematic synthesis of qualitative research in systematic reviews

    James Thomas;Angela Harden

  • Methods for the synthesis of qualitative research: a critical review

    Elaine Barnett-Page;James Thomas

  • An Introduction to Systematic Reviews

    David Gough;Sandy Oliver;James Thomas

  • A systematic review of barriers to and facilitators of the use of evidence by policymakers

    Kathryn Oliver;Simon Innvar;Theo Lorenc;Jenny Woodman

  • Clarifying differences between review designs and methods

    David Gough;James Thomas;Sandy Oliver

  • Psychosocial interventions for supporting women to stop smoking in pregnancy

    Catherine R. Chamberlain;Alison. O’Mara-Eves;Jessie. Porter;Tim. Coleman

  • Using text mining for study identification in systematic reviews: a systematic review of current approaches

    Alison O’Mara-Eves;James Thomas;John McNaught;Makoto Miwa

  • Integrating qualitative research with trials in systematic reviews

    James Thomas;Angela Harden;Ann Oakley;Sandy Oliver

  • Living systematic reviews: an emerging opportunity to narrow the evidence-practice gap

    Julian Elliott;Tari Joy Turner;Ornella Maria Clavisi;James Thomas

  • Impact and experiences of delayed discharge: A mixed‐studies systematic review

    Unknown

  • Methodological Issues in Combining Diverse Study Types in Systematic Reviews

    Angela Harden;James Thomas

  • Community engagement to reduce inequalities in health: a systematic review, meta-analysis and economic analysis

    Alison O'Mara-Eves;Ginny Brunton;David McDaid;Sandy Oliver

  • Machine learning for identifying Randomized Controlled Trials: An evaluation and practitioner's guide.

    Iain J. Marshall;Anna Noel-Storr;Joël Kuiper;James Thomas

  • A web-based tool for adjusting costs to a specific target currency and price year

    Ian Shemilt;Ian Shemilt;James Thomas;Marcello Morciano

  • School-based interventions to prevent anxiety and depression in children and young people: a systematic review and network meta-analysis.

    Deborah M Caldwell;Sarah R Davies;Sarah E Hetrick;Jennifer C Palmer

  • The Human Behaviour-Change Project: harnessing the power of artificial intelligence and machine learning for evidence synthesis and interpretation

    Susan Michie;James Thomas;Marie Johnston;Pol Mac Aonghusa

  • Synthesising quantitative evidence in systematic reviews of complex health interventions

    Julian P T Higgins;José A López-López;Betsy J Becker;Sarah R Davies

  • Children and healthy eating: a systematic review of barriers and facilitators

    James Thomas;Katy Sutcliffe;Angela Harden;Ann Oakley

  • Facilitators and Barriers to Engagement in Parenting Programs A Qualitative Systematic Review

    Julie A Mytton;Jenny C Ingram;Sarah Manns;James Thomas

  • Applications of text mining within systematic reviews

    James Thomas;John McNaught;Sophia Ananiadou

  • The school environment and student health: a systematic review and meta-ethnography of qualitative research

    Farah Jamal;Adam Fletcher;Angela Harden;Angela Harden;Helene Anne Wells

  • Systematic review of the effects of schools and school environment interventions on health: evidence mapping and synthesis

    C. Bonell;F. Jamal;A. Harden;H. Wells

Frequent Co-Authors

Sandy Oliver
Sandy Oliver University College London
Angela Harden
Angela Harden City, University of London
Sarah Stewart-Brown
Sarah Stewart-Brown University of Warwick
Ann Oakley
Ann Oakley University College London
Chris Bonell
Chris Bonell London School of Hygiene & Tropical Medicine
Sophia Ananiadou
Sophia Ananiadou University of Manchester
Adam Fletcher
Adam Fletcher Cardiff University
Simon Murphy
Simon Murphy Cardiff University
Rona Campbell
Rona Campbell University of Bristol
Mark Petticrew
Mark Petticrew London School of Hygiene & Tropical Medicine

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

Exploring Social Sciences and Humanities in the USA opens doors to diverse, rewarding career paths. Today’s students increasingly value flexibility—leading to a surge in online degree options tailored to meet different needs and timelines. For those interested in advancing their knowledge of the human mind and behavior, a master in psychology online provides both affordability and convenience.

Ambitious educators can complete the shortest edd program online to quickly move forward in leadership roles. Meanwhile, professionals eager to accelerate their academic journey may opt for a 1 year online masters, gaining advanced credentials in record time.

Undergraduate students aren’t left out—those wishing to start their careers sooner can pursue an accelerated bachelor's degree online accredited by recognized institutions. These flexible programs are designed for learners seeking both speed and quality, making it easier to enter the workforce or continue with further studies.

Best Scientists Citing James Thomas

Trending Scientists

Recently Published Articles