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Robert J. Williams

Robert J. Williams

D-Index & Metrics

Psychology

D-Index
52
Citations
8897
World Ranking
5043
National Ranking
337

Robert J. Williams 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 J. Williams 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: 189 publications — 65th percentile

65% of scientists in this discipline score the same or lower.

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

Robert J. Williams 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 J. Williams 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: 52 D-Index — 57th percentile

57% of scientists in this discipline score the same or lower.

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

Overview

Robert J. Williams is affiliated with the University of Lethbridge in Canada and has a research focus rooted primarily in psychology. Their work extensively covers the domains of gambling behavior and treatments, with additional attention to sexuality, behavior, technology, substance abuse treatment and outcomes, financial literacy, schizophrenia research, homelessness, social issues, and sports analytics.

Their publication record includes contributions to several notable journals. Frequent publication venues include:

  • Journal of Gambling Studies
  • International Gambling Studies
  • Psychology of Addictive Behaviors
  • Addictive Behaviors
  • The Canadian Journal of Addiction

Williams has published work within the subfields of clinical psychology, epidemiology, economics and econometrics, accounting, and psychiatry and mental health.

Significant recent papers authored or co-authored by Williams include:

  • "Predictors of gambling and problem gambling in Canada," 2021, Canadian Journal of Public Health
  • "Gambling and Problem Gambling in Canada in 2018: Prevalence and Changes Since 2002," 2020, The Canadian Journal of Psychiatry
  • "Etiology of problem gambling in Canada," 2022, Psychology of Addictive Behaviors

Other important related works in their research network include:

  • "The Conceptual Framework of Harmful Gambling: A revised framework for understanding gambling harm," 2020, Journal of Behavioral Addictions
  • "Gambling in Canada During the COVID Lockdown: Prospective National Survey," 2021, Journal of Gambling Studies

Frequent co-authors in their research efforts have been:

  • David C. Hodgins
  • Daniel S. McGrath
  • Rhys Stevens
  • Yale D. Belanger
  • Carrie A. Shaw

Best Publications

  • A Comprehensive and Comparative Review of Adolescent Substance Abuse Treatment Outcome

    Robert J. Williams;Samuel Y. Chang

  • THE POPULATION PREVALENCE OF PROBLEM GAMBLING: Methodological Influences, Standardized Rates, Jurisdictional Differences, and Worldwide Trends

    Robert J. Williams;Rachel A. Volberg;Rhys M. G. Stevens

  • Prevention of Problem Gambling: A Comprehensive Review of the Evidence and Identified Best Practices

    Robert J. Williams;Beverly L. West;Robert I. Simpson

  • Internet Gambling: Prevalence, Patterns, Problems, and Policy Options

    Robert T. Wood;Robert J. Williams

  • A comparative profile of the Internet gambler: Demographic characteristics, game-play patterns, and problem gambling status

    Robert T. Wood;Robert J. Williams

  • Validity of adolescent self-report of substance use.

    Robert J. Williams;Nadine R. Nowatzki

  • Gambling as a form of risk-taking: Individual differences in personality, risk-accepting attitudes, and behavioral preferences for risk.

    Sandeep Mishra;Martin L. Lalumière;Robert J. Williams

  • Problem gambling on the internet: implications for internet gambling policy in North America

    Robert T. Wood;Robert J. Williams

  • The classification accuracy of four problem gambling assessment instruments in population research

    Robert J. Williams;Rachel A. Volberg

  • Natural course of behavioral addictions: a 5-year longitudinal study

    Barna Konkolÿ Thege;Erica M Woodin;David C Hodgins;Robert J Williams

  • GAMBLING AND PROBLEM GAMBLING WITHIN FORENSIC POPULATIONS A Review of the Literature

    Robert J. Williams;Jennifer Royston;Brad F. Hagen

  • The association between childhood maltreatment and gambling problems in a community sample of adult men and women.

    David C. Hodgins;Don P. Schopflocher;Nady el-Guebaly;David M. Casey

  • Does learning about the mathematics of gambling change gambling behavior

    Robert J. Williams;Dennis Connolly

  • The Social and Economic Impacts of Gambling

    Robert J. Williams;Jürgen Rehm;Rhys M. G. Stevens

  • Prevention of Problem Gambling: A Comprehensive Review of the Evidence

    Robert J. Williams

  • Best Practices in the Population Assessment of Problem Gambling

    Robert J. Williams;Rachel A. Volberg

  • Incidence of fetal alcohol syndrome in northeastern Manitoba.

    Robert J. Williams;Felix S. Odaibo;Janet M. McGee

  • The Proportion of Gaming Revenue Derived from Problem Gamblers: Examining the Issues in a Canadian Context

    Robert J. Williams;Robert T. Wood

  • ‘How Much Money Do You Spend on Gambling?’ The Comparative Validity of Question Wordings Used to Assess Gambling Expenditure

    Robert T. Wood;Robert J. Williams

  • Conceptual Framework of Harmful Gambling: An International Collaboration

    Max Abbott;Per Binde;David Hodgins;David Korn

  • Association of functional variants in the dopamine D2-like receptors with risk for gambling behaviour in healthy Caucasian subjects.

    Daniela S.S. Lobo;Daniela S.S. Lobo;Renan P. Souza;Renan P. Souza;Ryan P. Tong;Ryan P. Tong;David M. Casey

  • Quinte longitudinal study of gambling and problem gambling

    Robert J. Williams;Robert G. Hann;Donald Peter Schopflocher;Beverly L. West

Frequent Co-Authors

David C. Hodgins
David C. Hodgins University of Calgary
Rachel A. Volberg
Rachel A. Volberg University of Massachusetts Amherst
Max Abbott
Max Abbott Auckland University of Technology
Lena C. Quilty
Lena C. Quilty Centre for Addiction and Mental Health
Luke Clark
Luke Clark University of British Columbia
Paul Delfabbro
Paul Delfabbro University of Adelaide
Martin L. Lalumière
Martin L. Lalumière University of Ottawa
James L. Kennedy
James L. Kennedy Centre for Addiction and Mental Health
Sherry H. Stewart
Sherry H. Stewart Dalhousie University
Jeffrey L. Derevensky
Jeffrey L. Derevensky McGill University

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