World's Best Scientists 2026 revealed!

D-Index & Metrics

Psychology

D-Index
69
Citations
20550
World Ranking
2350
National Ranking
1367

William M. P. Klein 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 William M. P. Klein 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: 273 publications — 84th percentile

84% of scientists in this discipline score the same or lower.

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

William M. P. Klein 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 William M. P. Klein 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

William M. P. Klein is affiliated with the National Institutes of Health in the United States. Their research spans multiple disciplines, primarily focusing on medicine, psychology, and social sciences. Klein's work includes 55 publications in medicine, 40 in psychology, and 39 in social sciences, demonstrating a multidisciplinary approach to health-related behavioral research.

Klein's subfields of study include sociology and political science, applied psychology, genetics, public health, environmental and occupational health, and pediatrics, perinatology, and child health. This diverse expertise supports research that addresses complex interactions between genetics, behavior, and public health outcomes.

The main research topics emphasized in Klein's work cover behavioral health and interventions, BRCA gene mutations in cancer, childhood cancer survivors' quality of life, risk perception and management, smoking behavior and cessation, vaccine coverage and hesitancy, as well as misinformation and its impacts. These topics indicate a focus on understanding and influencing health behavior and outcomes in populations at risk.

Notable recent publications include:

  • Self-determination theory interventions for health behavior change: Meta-analysis and meta-analytic structural equation modeling of randomized controlled trials (2020), Journal of Consulting and Clinical Psychology
  • Does increasing autonomous motivation or perceived competence lead to health behavior change? A meta-analysis (2021), Health Psychology
  • Behavioral Research in Cancer Prevention and Control: Emerging Challenges and Opportunities (2021), JNCI Journal of the National Cancer Institute
  • Spiritual peace and life meaning may buffer the effect of anxiety on physical well-being in newly diagnosed cancer survivors (2020), Psycho-Oncology
  • Perceptions and tolerance of uncertainty: relationship to trust in COVID-19 health information and vaccine hesitancy (2022), Journal of Behavioral Medicine

Klein frequently publishes in Health Psychology, Journal of Behavioral Medicine, Annals of Behavioral Medicine, Psychology and Health, and the American Journal of Preventive Medicine. These venues reflect an emphasis on psychology and behavioral aspects of health care and public health.

Collaboration is a significant aspect of Klein's research profile, with frequent coauthors including Rebecca A. Ferrer, Arielle S. Gillman, Paul K. J. Han, Irina A. Ileş, and Alexander J. Rothman. These collaborations suggest engagement with a network of researchers focusing on behavioral science and health psychology.

Best Publications

  • Risk perceptions and health behavior

    Rebecca A Ferrer;William Mp Klein

  • The Impact of Changing Attitudes, Norms, and Self-Efficacy on Health-Related Intentions and Behavior: A Meta-Analysis.

    Paschal Sheeran;Alexander Maki;Erika Montanaro;Aya Avishai-Yitshak

  • Addressing Health-Related Misinformation on Social Media.

    Wen-Ying Sylvia Chou;April Oh;William M P Klein

  • Unrealistic Optimism: Present and Future

    Neil D. Weinstein;William M. Klein

  • Experimental Manipulations of Self-Affirmation: A Systematic Review.

    Amy MCQueen;William M. P. Klein

  • Varieties of Uncertainty in Health Care

    Paul K. J. Han;William M. P. Klein;Neeraj K. Arora

  • Varieties of Uncertainty in Health Care: A Conceptual Taxonomy

    Paul K. J. Han;William M. P. Klein;Neeraj K. Arora

  • Resistance of Personal Risk Perceptions to Debiasing Interventions

    Neil D. Weinstein;William M. Klein

  • Dispositional, Unrealistic, and Comparative Optimism: Differential Relations with the Knowledge and Processing of Risk Information and Beliefs about Personal Risk

    Nathan M. Radcliffe;William M. P. Klein

  • The State of Research on Racial/Ethnic Discrimination in The Receipt of Health Care

    Vickie L. Shavers;Pebbles Fagan;Dionne Jones;William M. P. Klein

  • Objective standards are not enough: affective, self-evaluative, and behavioral responses to social comparison information.

    William M. Klein

  • Health Behavior Change: Moving from Observation to Intervention

    Paschal Sheeran;William M.P. Klein;Alexander J. Rothman

  • Taking Stock of Unrealistic Optimism

    James A. Shepperd;William M. P. Klein;Erika A. Waters;Neil D. Weinstein

  • Handbook of Imagination and Mental Simulation

    Keith Markman;Julie A. Suhr;William M. P. Klein

  • A Primer on Unrealistic Optimism

    James A. Shepperd;Erika A. Waters;Neil D. Weinstein;William M. P. Klein

  • Unrealistic optimism in smokers: implications for smoking myth endorsement and self-protective motivation.

    Amanda J. Dillard;Kevin D. McCaul;William M. P. Klein

  • Absolute and Relative Biases in Estimations of Personal Risk

    Alexander J. Rothman;William M. Klein;Neil D. Weinstein

  • Social comparison and unrealistic optimism about personal risk.

    William M. Klein;Neil D. Weinstein

  • The Tripartite Model of Risk Perception (TRIRISK): Distinguishing Deliberative, Affective, and Experiential Components of Perceived Risk.

    Rebecca A. Ferrer;William M. P. Klein;Alexander Persoskie;Aya Avishai-Yitshak

  • Motivated person perception: Constructing justifications for desired beliefs

    William M Klein;Ziva Kunda

  • The impact of changing attitudes, norms, and self-efficacy on health-related intentions and behavior: a meta-analysis

    P. Sheeran;A. Maki;E. Monanaro;A. Bryan

Frequent Co-Authors

Rebecca A. Ferrer
Rebecca A. Ferrer National Institutes of Health
Paul K. J. Han
Paul K. J. Han Maine Medical Center
Peter R. Harris
Peter R. Harris University of Sussex
Barbara B. Biesecker
Barbara B. Biesecker RTI International
Julie A. Suhr
Julie A. Suhr Ohio University
Neil D. Weinstein
Neil D. Weinstein Rutgers, The State University of New Jersey
Leslie G. Biesecker
Leslie G. Biesecker National Institutes of Health
Alexander J. Rothman
Alexander J. Rothman University of Minnesota
Paschal Sheeran
Paschal Sheeran University of North Carolina at Chapel Hill
James A. Shepperd
James A. Shepperd University of Florida

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