World's Best Scientists 2026 revealed!

D-Index & Metrics

Psychology

D-Index
69
Citations
53571
World Ranking
2314
National Ranking
139

Robert C. Gardner publication distribution in Psychology in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Psychology in 2026. The highlighted bar marks where Robert C. Gardner sits on this spectrum.

31–40 publications: 6 scientists 41–50 publications: 52 scientists 51–60 publications: 138 scientists 61–70 publications: 299 scientists 71–80 publications: 461 scientists 81–90 publications: 605 scientists 91–100 publications: 713 scientists 101–110 publications: 736 scientists 111–120 publications: 686 scientists 121–130 publications: 670 scientists 131–140 publications: 644 scientists 141–150 publications: 597 scientists 151–160 publications: 576 scientists 161–170 publications: 477 scientists 171–180 publications: 450 scientists 181–190 publications: 397 scientists 191–200 publications: 343 scientists 201–210 publications: 328 scientists 211–220 publications: 313 scientists 221–230 publications: 283 scientists 231–240 publications: 226 scientists 241–250 publications: 196 scientists 251–260 publications: 201 scientists 261–270 publications: 171 scientists 271–280 publications: 151 scientists 281–290 publications: 139 scientists 291–300 publications: 113 scientists 301–310 publications: 102 scientists 311–320 publications: 100 scientists 321–330 publications: 76 scientists 331–340 publications: 92 scientists 341–350 publications: 85 scientists 351–360 publications: 69 scientists 361–370 publications: 71 scientists 371–380 publications: 63 scientists 381–390 publications: 58 scientists 391–400 publications: 57 scientists 401–410 publications: 43 scientists 411–420 publications: 33 scientists 421–430 publications: 50 scientists 431–440 publications: 41 scientists 441–450 publications: 32 scientists 451–460 publications: 27 scientists 461–470 publications: 28 scientists 471–480 publications: 25 scientists 481–490 publications: 28 scientists 491–500 publications: 20 scientists 501–510 publications: 23 scientists 511–520 publications: 26 scientists 521–530 publications: 17 scientists 531–540 publications: 21 scientists 541–550 publications: 14 scientists 551–560 publications: 16 scientists 561–570 publications: 10 scientists 571–580 publications: 22 scientists 581–590 publications: 9 scientists 591–600 publications: 14 scientists 601–610 publications: 9 scientists 611–620 publications: 11 scientists 621–630 publications: 4 scientists 631–640 publications: 7 scientists 641–650 publications: 5 scientists 651–660 publications: 10 scientists 661–670 publications: 8 scientists 671–680 publications: 8 scientists 681–690 publications: 4 scientists 691–700 publications: 3 scientists 701–704 publications: 4 scientists 705+ publications: 100 scientists
31 publications 705+

This scientist: 126 publications — 36th percentile

36% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 705 publications or more.

Robert C. Gardner D-index placement in Psychology in 2026

The chart shows the D-index (discipline H-index) distribution of Psychology scientists ranked by Research.com in 2026. The highlighted bar marks where Robert C. Gardner sits on this spectrum.

30–31 D-Index: 398 scientists 32–33 D-Index: 702 scientists 34–35 D-Index: 671 scientists 36–37 D-Index: 659 scientists 38–39 D-Index: 641 scientists 40–41 D-Index: 671 scientists 42–43 D-Index: 617 scientists 44–45 D-Index: 558 scientists 46–47 D-Index: 495 scientists 48–49 D-Index: 487 scientists 50–51 D-Index: 445 scientists 52–53 D-Index: 390 scientists 54–55 D-Index: 408 scientists 56–57 D-Index: 345 scientists 58–59 D-Index: 325 scientists 60–61 D-Index: 321 scientists 62–63 D-Index: 248 scientists 64–65 D-Index: 290 scientists 66–67 D-Index: 218 scientists 68–69 D-Index: 219 scientists 70–71 D-Index: 215 scientists 72–73 D-Index: 183 scientists 74–75 D-Index: 169 scientists 76–77 D-Index: 132 scientists 78–79 D-Index: 137 scientists 80–81 D-Index: 120 scientists 82–83 D-Index: 112 scientists 84–85 D-Index: 86 scientists 86–87 D-Index: 101 scientists 88–89 D-Index: 83 scientists 90–91 D-Index: 77 scientists 92–93 D-Index: 70 scientists 94–95 D-Index: 78 scientists 96–97 D-Index: 58 scientists 98–99 D-Index: 53 scientists 100–101 D-Index: 57 scientists 102–103 D-Index: 48 scientists 104–105 D-Index: 53 scientists 106–107 D-Index: 46 scientists 108–109 D-Index: 24 scientists 110–111 D-Index: 35 scientists 112–113 D-Index: 27 scientists 114–115 D-Index: 32 scientists 116–117 D-Index: 31 scientists 118–119 D-Index: 22 scientists 120–121 D-Index: 16 scientists 122–123 D-Index: 24 scientists 124–125 D-Index: 18 scientists 126–127 D-Index: 11 scientists 128–129 D-Index: 19 scientists 130–131 D-Index: 10 scientists 132–133 D-Index: 16 scientists 134–135 D-Index: 10 scientists 136–137 D-Index: 12 scientists 138–139 D-Index: 8 scientists 140–141 D-Index: 5 scientists 142–143 D-Index: 12 scientists 144+ D-Index: 98 scientists
30 D-Index 144+

This scientist: 69 D-Index — 80th percentile

80% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 144 D-Index or more.

Overview

Robert C. Gardner is affiliated with the University of Western Ontario in Canada. Their research primarily spans the field of Medicine, with notable contributions in subfields such as Infectious Diseases, Cardiology and Cardiovascular Medicine, and Hepatology.

The scientist has contributed to the understanding of various medical topics, including:

  • Viral gastroenteritis research and epidemiology
  • Viral Infections and Immunology Research
  • Hepatitis Viruses Studies and Epidemiology

Gardner's recent publications include a paper titled "Established and new rotavirus vaccines: a comprehensive review for healthcare professionals", published in 2021 in the journal Human Vaccines & Immunotherapeutics. This paper has been cited 19 times, reflecting engagement with the immunization research community.

Their work has appeared predominantly in the publication venue Human Vaccines & Immunotherapeutics, contributing at least one paper to this journal.

Frequent collaborators in their research include:

  • Volker Vetter
  • S. Debrus
  • Bernd Benninghoff
  • Priya Pereira

Best Publications

  • Social psychology and second language learning : the role of attitudes and motivation

    Robert C. Gardner

  • Attitudes and Motivation in Second-Language Learning

    Robert C. Gardner;Wallace E. Lambert

  • The Subtle Effects of Language Anxiety on Cognitive Processing in the Second Language

    Peter D. MacIntyre;R. C. Gardner

  • Attitudes, Motivation, and Second Language Learning: A Meta‐Analysis of Studies Conducted by Gardner and Associates

    Anne-Marie Masgoret;Robert C. Gardner

  • Motivational variables in second-language acquisition

    Robert C. Gardner;Wallace E. Lambert

  • Anxiety and Second‐Language Learning: Toward a Theoretical Clarification*

    P. D. MacIntyre;R. C. Gardner

  • A student's contributions to second-language learning. Part II: Affective variables

    R. C. Gardner;P. D. MacIntyre

  • Evaluational reactions to spoken languages.

    W E Lambert;R C Hodgson;R C Gardner;S Fillenbaum

  • A student's contributions to second language learning. Part I: Cognitive variables

    R. C. Gardner;P. D. MacIntyre

  • Methods and Results in the Study of Anxiety and Language Learning: A Review of the Literature*

    Peter D. MacIntyre;Robert C. Gardner

  • Expanding the Motivation Construct in Language Learning

    Paul F. Tremblay;Robert C. Gardner

  • On the Measurement of Affective Variables in Second Language Learning

    Robert C. Gardner;Peter D. MacIntyre

  • Towards a Full Model of Second Language Learning: An Empirical Investigation

    R. C. Gardner;Paul F. Tremblay;Anne-Marie Masgoret

  • Language Anxiety: Its Relationship to Other Anxieties and to Processing in Native and Second Languages*

    Peter D. MacIntyre;R. C. Gardner

  • An Instrumental Motivation In Language Study: Who Says It Isn't Effective?

    R. C. Gardner;P. D. MacIntyre

  • Motivation and Second-Language Acquisition.

    Robert C. Gardner

  • Investigating Language Class Anxiety Using the Focused Essay Technique

    Peter D. Macintyre;R. C. Gardner

  • On Motivation, Research Agendas, and Theoretical Frameworks†

    R. C. Gardner;P. F. Tremblay

  • Teacher Motivation Strategies, Student Perceptions, Student Motivation, and English Achievement

    Mercè Bernaus;Robert C. Gardner

  • Integrative motivation: Changes during a year-long intermediate-level language course

    R. C. Gardner;A.-M. Masgoret;J. Tennant;L. Mihic

Frequent Co-Authors

Richard N. Lalonde
Richard N. Lalonde York University
Peter D. MacIntyre
Peter D. MacIntyre Cape Breton University
Paul F. Tremblay
Paul F. Tremblay University of Western Ontario
Richard Clément
Richard Clément University of Ottawa
Wallace E. Lambert
Wallace E. Lambert McGill University
Donald M. Taylor
Donald M. Taylor McGill University
Richard W. J. Neufeld
Richard W. J. Neufeld University of Western Ontario
Samantha Wells
Samantha Wells Centre for Addiction and Mental Health
Allan Paivio
Allan Paivio University of Western Ontario
Jyotsna Vaid
Jyotsna Vaid Texas A&M University

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Related Online Degrees & Career Pathways

A degree in psychology opens doors to a wide range of careers, with social work being one of the most rewarding options. Many states have specific educational pathways and requirements for entering this field. Aspiring social workers should be aware that the degree needed to be a social worker in Ohio typically starts with a bachelor’s in social work or a closely related discipline such as psychology. However, advanced roles might require a master’s degree and additional licensing.

Each state sets its own standards. For example, the Oklahoma minimum degree requirement for social workers is a bachelor’s in social work (BSW), while practicing clinicians need a master’s. Similarly, the Oregon minimum degree requirement for social workers follows a comparable pattern, emphasizing accredited degrees and practical training.

In the Northeast, the Pennsylvania education requirements for social workers also highlight the need for an accredited degree, fieldwork, and, often, state licensing exams. Because requirements vary, researching your state’s guidelines is key if you’re planning to pursue a career in social work after your psychology studies.

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