World's Best Scientists 2026 revealed!

D-Index & Metrics

Psychology

D-Index
43
Citations
22786
World Ranking
7068
National Ranking
3816

Lloyd G. Humphreys 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 Lloyd G. Humphreys 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: 155 publications — 52nd percentile

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

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

Lloyd G. Humphreys 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 Lloyd G. Humphreys 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: 43 D-Index — 38th percentile

38% of scientists in this discipline score the same or lower.

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

Overview

Lloyd G. Humphreys was affiliated with the University of Illinois at Urbana-Champaign in the United States. Their research primarily focused on the fields of Medicine and Health Professions, with specific attention to subfields including Endocrinology, Diabetes and Metabolism as well as General Health Professions.

The scientist contributed to topics related to Mobile Health and mHealth Applications, Diabetes Management and Research, and Diabetes Management and Education. Their work addressed critical aspects of healthcare technology and patient management in chronic conditions such as diabetes.

Humphreys published research in established venues, with one of the notable publication venues being Frontiers in Clinical Diabetes and Healthcare.

They coauthored work with several researchers, including Sebastian Stevens, Susan Gallagher, Tim Andrews, Liz Ashall-Payne, and Simon Leigh.

Among the documented publications is the paper titled The effectiveness of digital health technologies for patients with diabetes mellitus: A systematic review, published in 2022 in Frontiers in Clinical Diabetes and Healthcare.

  • The effectiveness of digital health technologies for patients with diabetes mellitus: A systematic review (2022, Frontiers in Clinical Diabetes and Healthcare)

Best Publications

  • The Mismeasure of Man

    Lloyd Humphreys;Stephen Jay Gould

  • An Investigation of the Parallel Analysis Criterion for Determining the Number of Common Factors

    Lloyd G. Humphreys;Richard G. Montanelli

  • TECHNICAL GUIDELINES FOR ASSESSING COMPUTERIZED ADAPTIVE TESTS

    Bert F. Green;R. Darrell Bock;Lloyd G. Humphreys;Robert L. Linn

  • Assessing spurious "moderator effects": Illustrated substantively with the hypothesized ("synergistic") relation between spatial and mathematical ability.

    David Lubinski;Lloyd G. Humphreys

  • Utility of predicting group membership and the role of spatial visualization in becoming an engineer, physical scientist, or artist.

    Lloyd G. Humphreys;David Lubinski;Grace Yao

  • Educational Uses of Tests with Disadvantaged Students.

    T. Anne Cleary;Lloyd G. Humphreys;S. A. Kendrick;Alexander Wesman

  • Latent roots of random data correlation matrices with squared multiple correlations on the diagonal: a Monte Carlo study

    Richard G. Montanelli;Lloyd G. Humphreys

  • The construct of general intelligence

    Lloyd G. Humphreys

  • The organization of human abilities.

    Lloyd G. Humphreys

  • Incorporating General Intelligence into Epidemiology and the Social Sciences.

    David Lubinski;Lloyd G. Humphreys

  • The effect of random alternation of reinforcement on the acquisition and extinction of conditioned eyelid reactions.

    Lloyd G. Humphreys

  • Investigations of the simplex

    Lloyd G. Humphreys

  • The fleeting nature of the prediction of college academic success.

    Lloyd G. Humphreys

  • Underachievement Among Spatially Gifted Students

    Carol L. Gohm;Lloyd G. Humphreys;Grace Yao

  • Note on a Criterion for the Number of Common Factors.

    Lloyd G. Humphreys;Daniel R. Ilgen

  • A broadly based analysis of mathematical giftedness

    David Lubinski;Lloyd G. Humphreys

  • Statistical definitions of test validity for minority groups.

    Lloyd G. Humphreys

  • Another View of Dynamic Criteria: A Critical Reanalysis of Barrett, Caldwell, and Alexander.

    James T. Austin;Lloyd G. Humphreys;Charles L. Hulin

  • Critique of Cattell's "theory of fluid and crystallized intelligence: a critical experiment".

    Lloyd G. Humphreys

  • The Primary Mental Ability

    Lloyd G. Humphreys

Frequent Co-Authors

David Lubinski
David Lubinski Vanderbilt University
Robert L. Linn
Robert L. Linn University of Colorado Boulder
Fritz Drasgow
Fritz Drasgow University of Illinois at Urbana-Champaign
Daniel R. Ilgen
Daniel R. Ilgen Michigan State University
John B. Carroll
John B. Carroll University of North Carolina at Chapel Hill
Charles W. Eriksen
Charles W. Eriksen University of Illinois at Urbana-Champaign
Emiko S. Kashima
Emiko S. Kashima La Trobe University
Charles L. Hulin
Charles L. Hulin University of Illinois at Urbana-Champaign
Hans J. Eysenck
Hans J. Eysenck King's College London

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

Pursuing a degree in Psychology can open doors to a variety of impactful careers, including school counseling. Many colleges offer online degrees that align with the educational pathways needed for these roles, making them accessible for students nationwide.

It is important to understand that each state has its own guidance regarding school counselor certification. For example, you can review the requirements to be a school counselor in Delaware and compare them with the Florida school counselor education requirements.

Likewise, those planning to work in the Southeast should be aware of the requirements to be a school counselor in Georgia. In addition, some states like Hawaii have distinct paths—see the requirements to be a school counselor in Hawaii for more information.

By choosing the right online psychology degree program and understanding state-specific requirements, you’ll be well-equipped to pursue a rewarding career as a licensed school counselor.

Best Scientists Citing Lloyd G. Humphreys

Recently Published Articles