World's Best Scientists 2026 revealed!

D-Index & Metrics

Psychology

D-Index
95
Citations
516063
World Ranking
746
National Ranking
468

Icek Ajzen 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 Icek Ajzen 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: 344 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: 34 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 701–705 publications: 5 scientists 706+ publications: 100 scientists
31 publications 706+

This scientist: 149 publications — 49th percentile

49% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 706 publications or more.

Icek Ajzen 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 Icek Ajzen 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: 559 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: 87 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: 79 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: 95 D-Index — 93rd percentile

93% of scientists in this discipline score the same or lower.

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

Overview

Icek Ajzen is affiliated with the University of Massachusetts Amherst in the United States. Their research primarily centers on psychology and social sciences, with a focus on behavioral health and interventions. Ajzen's work spans 21 publications in psychology and 13 in social sciences, with notable subfields including applied psychology, sociology and political science, social psychology, experimental and cognitive psychology, and clinical psychology.

The main topics addressed in Ajzen's research include behavioral health and interventions, social and intergroup psychology, mental health research topics, motivation and self-concept in sports, decision-making and behavioral economics, environmental education and sustainability, and eating disorders and behaviors.

Ajzen has contributed to various scholarly venues, with a record of publications as follows:

  • Human Behavior and Emerging Technologies (3 publications)
  • Europe's Journal of Psychology (3 publications)
  • Journal of Agricultural Economics (2 publications)
  • Health Psychology (1 publication)
  • Social Science & Medicine (1 publication)

Among recent papers authored or co-authored by Ajzen are:

  • The theory of planned behavior: Frequently asked questions, 2020, Human Behavior and Emerging Technologies
  • The theory of planned behavior: Selected recent advances and applications, 2020, Europe's Journal of Psychology
  • Control interactions in the theory of planned behavior: Rethinking the role of subjective norm, 2020, Europe's Journal of Psychology
  • Perceived behavioral control moderating effects in the theory of planned behavior: A meta-analysis, 2022, Health Psychology
  • Farmer Behaviour as Reasoned Action: A Critical Review of Research with the Theory of Planned Behaviour, 2020, Journal of Agricultural Economics

Frequent collaborators in Ajzen's research include:

  • Peter Schmidt (7 joint publications)
  • Francesco La Barbera (4 joint publications)
  • Sebastian Bamberg (3 joint publications)
  • Kyra Hamilton (2 joint publications)
  • Eldad Davidov (2 joint publications)

Best Publications

  • The theory of planned behavior

    Icek Ajzen

  • Belief, attitude, intention and behavior : an introduction to theory and research

    Martin Fishbein;Icek Ajzen

  • Belief, attitude, intention, and behavior : an introduction to theory and research

    Richard J. Hill;Martin Fishbein;Icek Ajzen

  • Understanding Attitudes and Predicting Social Behavior

    Icek Ajzen;Martin Fishbein

  • From Intentions to Actions: A Theory of Planned Behavior

    Icek Ajzen

  • Attitudes, Personality and Behavior

    Icek Ajzen

  • Attitude-behavior relations: A theoretical analysis and review of empirical research.

    Icek Ajzen;Martin Fishbein

  • Perceived Behavioral Control, Self-Efficacy, Locus of Control, and the Theory of Planned Behavior

    Icek Ajzen

  • Prediction of goal-directed behavior: Attitudes, intentions, and perceived behavioral control

    Icek Ajzen;Thomas J Madden

  • Predicting and Changing Behavior: The Reasoned Action Approach

    Martin Fishbein;Icek Ajzen

  • Nature and Operation of Attitudes

    Icek Ajzen

  • THE THEORY OF PLANNED BEHAVIOUR: REACTIONS AND REFLECTIONS

    Icek Ajzen

  • The Influence of Attitudes on Behavior

    Icek Ajzen;Martin Fishbein;Sophie Lohmann;Dolores Albarracín

  • A Comparison of the Theory of Planned Behavior and the Theory of Reasoned Action

    Thomas J. Madden;Pamela Scholder Ellen;Icek Ajzen

  • Attitudes and the Attitude-Behavior Relation: Reasoned and Automatic Processes

    Icek Ajzen;Martin Fishbein

  • 5. The influence of attitudes on behavior

    Icek Ajzen;Martin Fishbein

  • Constructing a TpB Questionnaire: Conceptual and Methodological Considerations

    Icek Ajzen

  • Attitudes, Traits, and Actions: Dispositional Prediction of Behavior in Personality and Social Psychology

    Icek Ajzen

  • The theory of planned behavior: Frequently asked questions

    Icek Ajzen

  • Attitudes towards objects as predictors of single and multiple behavioral criteria.

    Martin Fishbein;Icek Ajzen

  • Application of the Theory of Planned Behavior to Leisure Choice.

    Icek Ajzen;B. L. Driver

Frequent Co-Authors

Martin Fishbein
Martin Fishbein University of Pennsylvania
Dolores Albarracín
Dolores Albarracín University of Pennsylvania
Arie W. Kruglanski
Arie W. Kruglanski University of Maryland, College Park
Fong Chan
Fong Chan University of Wisconsin–Madison
Kyra Hamilton
Kyra Hamilton Griffith University
Nilanjana Dasgupta
Nilanjana Dasgupta University of Massachusetts Amherst
Amiram D. Vinokur
Amiram D. Vinokur University of Michigan–Ann Arbor

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