World's Best Scientists 2026 revealed!

D-Index & Metrics

Psychology

D-Index
73
Citations
21698
World Ranking
1950
National Ranking
221

John Marsden 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 John Marsden 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: 216 publications — 73rd percentile

73% of scientists in this discipline score the same or lower.

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

John Marsden 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 John Marsden 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: 73 D-Index — 83rd percentile

83% of scientists in this discipline score the same or lower.

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

Overview

John Marsden is affiliated with King's College London in the United Kingdom and specializes in the field of Medicine, with a focus on Epidemiology, Public Health, Environmental and Occupational Health, General Health Professions, Clinical Psychology, and Pharmacology.

Their primary research topics include:

  • Opioid Use Disorder Treatment
  • Substance Abuse Treatment and Outcomes
  • Mental Health Treatment and Access
  • Pain Management and Opioid Use
  • Treatment of Major Depression
  • HIV, Drug Use, Sexual Risk
  • Psychedelics and Drug Studies

John Marsden has published extensively, with notable recent papers such as:

  • "Mitigating and learning from the impact of COVID-19 infection on addictive disorders" (2020) in Addiction
  • "Superiority and cost-effectiveness of monthly extended-release buprenorphine versus daily standard of care medication: a pragmatic, parallel-group, open-label, multicentre, randomised, controlled, phase 3 trial" (2023) in EClinicalMedicine

The frequent co-authors collaborating with Marsden include:

  • Keith Humphreys
  • Wayne Hall
  • Matthew Hickman
  • Shane Darke
  • Jalie A. Tucker

John Marsden regularly publishes in specific scholarly venues such as:

  • Addiction
  • Drug and Alcohol Dependence
  • Trials
  • BMJ Open
  • EClinicalMedicine

Their research addresses multiple aspects of addictive disorders and treatments, focusing on epidemiological methods as well as clinical outcomes. Marsden's contributions span investigations into opioid use disorders, substance abuse treatment mechanisms, and the health policy implications of addiction treatment, including cost-effectiveness studies and intervention impact evaluations.

Best Publications

  • The alcohol, smoking and substance involvement screening test (ASSIST): development, reliability and feasibility

    Robert Ali;Elia Awwad;Thomas Babor;Fiona Bradley

  • Validation of the alcohol, smoking and substance involvement screening test (ASSIST)

    Rachel Humeniuk;Robert Ali;Thomas F. Babor;Michael Farrell

  • Global statistics on alcohol, tobacco and illicit drug use: 2017 status report

    Amy Peacock;Amy Peacock;Janni Leung;Sarah Larney;Sarah Larney;Samantha Colledge

  • Meta-analysis of drug-related deaths soon after release from prison.

    Elizabeth L. C. Merrall;Azar Kariminia;Ingrid A. Binswanger;Ingrid A. Binswanger;Michael S. Hobbs

  • The Maudsley Addiction Profile (MAP):A brief instrument for assessing treatment outcome.

    John Marsden;Michael Gossop;Duncan Stewart;David Best

  • Understanding reasons for drug use amongst young people: a functional perspective

    Annabel Boys;John Marsden;John Strang

  • Nicotine, alcohol and drug dependence, and psychiatric comorbidity--results of a national household survey

    M Farrell;S Howes;P Bebbington;T Brugha

  • The National Treatment Outcome Research Study (NTORS): 4-5 year follow-up results.

    Michael Gossop;John Marsden;Duncan Stewart;Tara Kidd

  • Global statistics on addictive behaviours: 2014 status report.

    Linda R. Gowing;Robert L. Ali;Steve Allsop;John Marsden

  • Global, regional, and country-level coverage of interventions to prevent and manage HIV and hepatitis C among people who inject drugs: a systematic review

    Sarah Larney;Amy Peacock;Janni Leung;Samantha Colledge

  • A prospective study of mortality among drug misusers during a 4-year period after seeking treatment

    Michael Gossop;Duncan Stewart;Samantha Treacy;John Marsden

  • Acute risk of drug-related death among newly released prisoners in England and Wales

    Michael Farrell;John Marsden

  • Factors associated with abstinence, lapse or relapse to heroin use after residential treatment: Protective effect of coping responses.

    Michael Gossop;Duncan Stewart;Nadine Browne;John Marsden

  • A rapid evidence review of the effectiveness and cost-effectiveness of alcohol control policies: an English perspective

    Robyn Burton;Robyn Burton;Clive Henn;Don Lavoie;Rosanna O'Connor

  • Mephedrone: use, subjective effects and health risks

    Adam Winstock;Luke Mitcheson;John Ramsey;Susannah Davies

  • Attendance at Narcotics Anonymous and Alcoholics Anonymous meetings, frequency of attendance and substance use outcomes after residential treatment for drug dependence: a 5-year follow-up study

    Michael Gossop;Duncan Stewart;John Marsden

  • Treatment retention and 1 year outcomes for residential programmes in England

    Michael Gossop;John Marsden;Duncan Stewart;Alexandra Rolfe

  • Development of the Treatment Outcomes Profile.

    John Marsden;Michael Farrell;Colin Bradbury;Annette Dale-Perera

  • Outcomes after methadone maintenance and methadone reduction treatments: two-year follow-up results from the National Treatment Outcome Research Study

    Michael Gossop;John Marsden;Duncan Stewart;Samantha Treacy

  • Substance use, health and social problems of service users at 54 drug treatment agencies. Intake data from the National Treatment Outcome Research Study.

    Michael Gossop;John Marsden;Duncan Stewart;Petra Lehmann

  • Mitigating and learning from the impact of COVID-19 infection on addictive disorders.

    John Marsden;Shane Darke;Wayne Hall;Matthew Hickman

Frequent Co-Authors

John Strang
John Strang King's College London
Michael Gossop
Michael Gossop King's College London
Michael Farrell
Michael Farrell University of New South Wales
Robert West
Robert West University College London
Wayne Hall
Wayne Hall University of Queensland
Joanne Neale
Joanne Neale King's College London
Shane Darke
Shane Darke University of New South Wales
Thomas F. Babor
Thomas F. Babor University of Connecticut
David Best
David Best University of Derby
Paul Bebbington
Paul Bebbington University College London

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