World's Best Scientists 2026 revealed!

D-Index & Metrics

Psychology

D-Index
41
Citations
37814
World Ranking
7676
National Ranking
4106

Jeffrey C. Valentine 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 Jeffrey C. Valentine 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: 70 publications — 4th percentile

4% of scientists in this discipline score the same or lower.

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

Jeffrey C. Valentine 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 Jeffrey C. Valentine 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: 41 D-Index — 33rd percentile

33% of scientists in this discipline score the same or lower.

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

Overview

Jeffrey C. Valentine is affiliated with the University of Louisville in the United States and has contributed extensively to research in psychology and social sciences. Their work primarily focuses on meta-analysis and systematic reviews, with additional interest in the Delphi technique in research and advanced causal inference methods.

Their recent publications include the following papers:

  • "When to replicate systematic reviews of interventions: consensus checklist" (2020, BMJ)
  • "Can Non-Randomised Studies of Interventions Provide Unbiased Effect Estimates? A Systematic Review of Internal Replication Studies" (2022, Evaluation Review)
  • "A Primer on Meta-Analytic Structural Equation Modeling: the Case of Depression" (2021, Prevention Science)
  • "PROTOCOL: Assessment of outcome reporting bias in studies included in Campbell systematic reviews" (2023, Campbell Systematic Reviews)
  • "Editorial: Fifty Campbell systematic reviews relevant to the policy response to COVID-19" (2020, Campbell Systematic Reviews)

Frequent co-authors in their research include:

  • Terri Pigott
  • Peter Tugwell
  • Vivian Welch
  • Zulfiqar A Bhutta
  • Elizabeth Kristjansson

Valentine's work has appeared multiple times in these publication venues:

  • Campbell Systematic Reviews
  • BMJ
  • Evaluation Review
  • Prevention Science
  • Journal of Research on Educational Effectiveness

The main fields of study covered in Valentine's research are:

  • Psychology
  • Social Sciences

Their research further delves into several subfields, including:

  • Statistics, Probability and Uncertainty
  • Sociology and Political Science
  • Experimental and Cognitive Psychology
  • Statistics and Probability
  • Applied Psychology

Valentine's primary research topics comprise:

  • Meta-analysis and systematic reviews
  • Delphi Technique in Research
  • Advanced Causal Inference Techniques
  • Mental Health Research Topics
  • Health Policy Implementation Science
  • Clinical practice guidelines implementation
  • Poverty, Education, and Child Welfare

Best Publications

  • ROBINS-I: a tool for assessing risk of bias in non-randomised studies of interventions.

    Jonathan A. C. Sterne;Miguel A Hernan;Barnaby C Reeves;Jelena Savovic;Jelena Savovic

  • The Handbook of Research Synthesis and Meta-Analysis

    Harris Cooper;Larry V. Hedges;Jeffrey C. Valentine

  • Effectiveness of mentoring programs for youth: a meta-analytic review.

    David L. DuBois;Bruce E. Holloway;Jeffrey C. Valentine;Harris Cooper

  • The Relation Between Self-Beliefs and Academic Achievement: A Meta-Analytic Review.

    Jeffrey C. Valentine;David L. DuBois;Harris Cooper

  • Standards of Evidence: Criteria for Efficacy, Effectiveness and Dissemination

    Brian R Flay;Anthony Biglan;Robert F Boruch;Felipe González Castro

  • How many studies do you need? A primer on statistical power for meta-analysis

    Jeffrey C. Valentine;Therese D. Pigott;Hannah R. Rothstein

  • How Effective Are Mentoring Programs for Youth? A Systematic Assessment of the Evidence

    David L. DuBois;Nelson Portillo;Jean E. Rhodes;Naida Silverthorn

  • How Many Studies Do You Need? A Primer on Statistical Power for Meta-Analysis

    Jeffrey C. Valentine;Therese D. Pigott;Hannah R. Rothstein

  • Personality and aggressive behavior under provoking and neutral conditions: A meta-analytic review.

    B. Ann Bettencourt;Amelia Talley;Arlin James Benjamin;Jeffrey Valentine

  • Relationships between five after-school activities and academic achievement.

    Harris Cooper;Jeffrey C. Valentine;Barbara Nye;James J. Lindsay

  • The handbook of research synthesis and meta-analysis, 2nd ed.

    Harris Cooper;Larry Vernon Hedges;Jeffrey C. Valentine

  • Making the Most of Summer School: A Meta-Analytic and Narrative Review

    Harris Cooper;Kelly Charlton;Jeff C. Valentine;Laura Muhlenbruck

  • Using Research to Answer Practical Questions About Homework

    Harris Cooper;Jeffrey C. Valentine

  • Violent video games: Specific effects of violent content on aggressive thoughts and behavior

    Craig A. Anderson;Nicholas L. Carnagey;Mindy Flanagan;Arlin J. Benjamin

  • Grey literature in meta-analyses.

    Vicki S. Conn;Jeffrey C. Valentine;Harris M. Cooper;Marilyn J. Rantz

  • Research synthesis and meta-analysis

    JC Valentine;HM Cooper

  • Interventions to increase physical activity among aging adults: a meta-analysis.

    Vicki S. Conn;Jeffrey C. Valentine;Harris M. Cooper

  • How to do a good systematic review of effects in international development: a tool kit

    Hugh Waddington;Howard White;Birte Snilstveit;Jorge Garcia Hombrados

  • Therapeutic alliance, empathy, and genuineness in individual adult psychotherapy: A meta-analytic review.

    Jacob B. Nienhuis;Jesse Owen;Jeffrey C. Valentine;Stephanie Winkeljohn Black

  • Research synthesis as a scientific process

    Harris Cooper;Larry Vernon Hedges

  • Research Synthesis and Meta-Analysis

    Jeffrey C. Valentine;Harris Cooper

  • Methods of Instructional Improvement in Algebra A Systematic Review and Meta-Analysis

    Christopher R. Rakes;Jeffrey C. Valentine;Maggie B. McGatha;Robert N. Ronau

  • The Effects of Modified School Calendars on Student Achievement and on School and Community Attitudes

    Harris Cooper;Jeffrey C. Valentine;Kelly Charlton;April Melson

  • Cognitive‐behavioural interventions for children who have been sexually abused

    Geraldine Macdonald;Julian P T Higgins;Paul Ramchandani;Jeffrey C Valentine

Frequent Co-Authors

Harris Cooper
Harris Cooper Duke University
Peter Tugwell
Peter Tugwell University of Ottawa
David Dubois
David Dubois University of Illinois at Chicago
Steven P. Schinke
Steven P. Schinke Columbia University
Sheppard G. Kellam
Sheppard G. Kellam Johns Hopkins University
Brian R. Flay
Brian R. Flay Boise State University
Anthony Biglan
Anthony Biglan Oregon Research Institute
Felipe González Castro
Felipe González Castro Arizona State University
Julian P T Higgins
Julian P T Higgins University of Bristol
Linda M. Collins
Linda M. Collins New York University

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