World's Best Scientists 2026 revealed!
Ralf W. Dittmann

Ralf W. Dittmann

D-Index & Metrics

Psychology

D-Index
45
Citations
10335
World Ranking
6608
National Ranking
313

Ralf W. Dittmann 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 Ralf W. Dittmann 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: 176 publications — 61st percentile

61% of scientists in this discipline score the same or lower.

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

Ralf W. Dittmann 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 Ralf W. Dittmann 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: 45 D-Index — 43rd percentile

43% of scientists in this discipline score the same or lower.

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

Overview

What is he best known for?

The fields of study he is best known for:

  • Internal medicine
  • Psychiatry
  • Major depressive disorder

Psychiatry, Internal medicine, Schizophrenia, Randomized controlled trial and Olanzapine are his primary areas of study. His research is interdisciplinary, bridging the disciplines of Tolerability and Psychiatry. His study in Internal medicine is interdisciplinary in nature, drawing from both Psychosocial, Endocrinology and Physiology.

His Schizophrenia research incorporates elements of Young adult, Observational study and Quality of life. In his study, Meta-analysis and Clinical trial is strongly linked to Attention deficit hyperactivity disorder, which falls under the umbrella field of Randomized controlled trial. The Olanzapine study combines topics in areas such as Brief Psychiatric Rating Scale and Atypical antipsychotic.

His most cited work include:

  • Nonpharmacological Interventions for ADHD: Systematic Review and Meta-Analyses of Randomized Controlled Trials of Dietary and Psychological Treatments (668 citations)
  • Cognitive Training for Attention-Deficit/Hyperactivity Disorder: Meta-Analysis of Clinical and Neuropsychological Outcomes From Randomized Controlled Trials (294 citations)
  • Predictors and clinical consequences of non-adherence with antipsychotic medication in the outpatient treatment of schizophrenia. (286 citations)

What are the main themes of his work throughout his whole career to date?

His main research concerns Psychiatry, Clinical psychology, Attention deficit hyperactivity disorder, Olanzapine and Atomoxetine. Gastroenterology is closely connected to Placebo in his research, which is encompassed under the umbrella topic of Psychiatry. His study looks at the relationship between Clinical psychology and fields such as Rating scale, as well as how they intersect with chemical problems.

His Attention deficit hyperactivity disorder research includes elements of Clinical trial, Psychometrics, Randomized controlled trial, Quality of life and Meta-analysis. His Olanzapine research integrates issues from Internal medicine, Clozapine and Atypical antipsychotic. His research in the fields of Atomoxetine hydrochloride overlaps with other disciplines such as In patient.

He most often published in these fields:

  • Psychiatry (58.82%)
  • Clinical psychology (29.41%)
  • Attention deficit hyperactivity disorder (27.45%)

What were the highlights of his more recent work (between 2014-2021)?

  • Clinical psychology (29.41%)
  • Psychiatry (58.82%)
  • Attention deficit hyperactivity disorder (27.45%)

In recent papers he was focusing on the following fields of study:

His scientific interests lie mostly in Clinical psychology, Psychiatry, Attention deficit hyperactivity disorder, Rating scale and Pediatrics. He has included themes like Randomized controlled trial and Autism, Autism spectrum disorder in his Clinical psychology study. His work on Child and adolescent psychiatry is typically connected to Pandemic as part of general Psychiatry study, connecting several disciplines of science.

His research in Attention deficit hyperactivity disorder intersects with topics in Quality of life and Discontinuation. Ralf W. Dittmann works mostly in the field of Pediatrics, limiting it down to topics relating to Adverse effect and, in certain cases, Methylphenidate, Meta-analysis and Mood. His research investigates the connection with Atomoxetine hydrochloride and areas like Placebo which intersect with concerns in Severity of illness.

Between 2014 and 2021, his most popular works were:

  • Cognitive Training for Attention-Deficit/Hyperactivity Disorder: Meta-Analysis of Clinical and Neuropsychological Outcomes From Randomized Controlled Trials (294 citations)
  • Neurofeedback for Attention-Deficit/Hyperactivity Disorder: Meta-Analysis of Clinical and Neuropsychological Outcomes From Randomized Controlled Trials. (127 citations)
  • Cardiovascular Effects of Stimulant and Non-Stimulant Medication for Children and Adolescents with ADHD: A Systematic Review and Meta-Analysis of Trials of Methylphenidate, Amphetamines and Atomoxetine. (64 citations)

In his most recent research, the most cited papers focused on:

  • Internal medicine
  • Psychiatry
  • Major depressive disorder

Ralf W. Dittmann focuses on Psychiatry, Attention deficit hyperactivity disorder, Clinical psychology, Randomized controlled trial and Child and adolescent psychiatry. His work deals with themes such as Observational study, Off-label use, Tolerability, Prospective cohort study and Medical prescription, which intersect with Psychiatry. Ralf W. Dittmann works mostly in the field of Attention deficit hyperactivity disorder, limiting it down to topics relating to Meta-analysis and, in certain cases, Sudden death, Adverse effect, Confidence interval, Atomoxetine hydrochloride and Comorbidity, as a part of the same area of interest.

His study in Clinical psychology is interdisciplinary in nature, drawing from both Intervention and Reliability. His Randomized controlled trial research includes themes of Neuropsychology, Behaviour therapy, Parent training, Impulsivity and Referral. His Child and adolescent psychiatry research is multidisciplinary, incorporating perspectives in Psychosocial and Anxiety.

Best Publications

  • Nonpharmacological Interventions for ADHD: Systematic Review and Meta-Analyses of Randomized Controlled Trials of Dietary and Psychological Treatments

    Edmund J S Sonuga-Barke;Daniel Brandeis;Samuele Cortese;David Daley

  • Cognitive Training for Attention-Deficit/Hyperactivity Disorder: Meta-Analysis of Clinical and Neuropsychological Outcomes From Randomized Controlled Trials

    Samuele Cortese;Samuele Cortese;Samuele Cortese;Maite Ferrin;Daniel Brandeis;Daniel Brandeis;Jan Buitelaar

  • Predictors and clinical consequences of non-adherence with antipsychotic medication in the outpatient treatment of schizophrenia.

    Diego Novick;Diego Novick;Josep Maria Haro;David Suarez;Victor Perez

  • Practitioner review: current best practice in the management of adverse events during treatment with ADHD medications in children and adolescents

    Samuele Cortese;Samuele Cortese;Martin Holtmann;Tobias Banaschewski;Jan Buitelaar

  • Atomoxetine and methylphenidate treatment in children with ADHD: a prospective, randomized, open-label trial.

    Christopher J. Kratochvil;John H. Heiligenstein;Ralf Dittmann;Thomas J. Spencer

  • Psychosocial risk factors for suicidality in children and adolescents

    J. J. Carballo;C. Llorente;L. Kehrmann;I. Flamarique

  • Olanzapine Versus Placebo in the Treatment of Adolescents With Bipolar Mania

    Mauricio Tohen;Ludmila Kryzhanovskaya;Gabrielle Carlson;Melissa DelBello

  • Sexual behavior in adolescent and adult females with congenital adrenal hyperplasia

    Ralf W. Dittmann;Marianne E. Kappes;Michael H. Kappes

  • ADHD management during the COVID-19 pandemic: guidance from the European ADHD Guidelines Group.

    Samuele Cortese;Samuele Cortese;Samuele Cortese;Philip Asherson;Edmund Sonuga-Barke;Tobias Banaschewski

  • Congenital adrenal hyperplasia. I: Gender-related behavior and attitudes in female patients and sisters.

    Ralf W. Dittmann;Michael H. Kappes;Marianne E. Kappes;Doris Börger

  • Non-stimulant medications in the treatment of ADHD

    Tobias Banaschewski;Veit Roessner;Ralf W Dittmann;Ralf W Dittmann;Paramala Janardhanan Santosh

  • Cardiovascular Effects of Stimulant and Non-Stimulant Medication for Children and Adolescents with ADHD: A Systematic Review and Meta-Analysis of Trials of Methylphenidate, Amphetamines and Atomoxetine.

    Leonie Hennissen;Mireille J. Bakker;Tobias Banaschewski;Sara Carucci

  • Practitioner Review: Current best practice in the use of parent training and other behavioural interventions in the treatment of children and adolescents with attention deficit hyperactivity disorder.

    David Daley;Saskia van der Oord;Saskia van der Oord;Maite Ferrin;Samuele Cortese;Samuele Cortese

  • Rates and predictors of remission and recovery during 3 years in 392 never‐treated patients with schizophrenia

    M. Lambert;D. Naber;A. Schacht;T. Wagner

  • Clozapine and olanzapine are associated with food craving and binge eating: results from a randomized double-blind study.

    Michael Kluge;Andreas Schuld;Hubertus Himmerich;Mira Dalal

  • Olanzapine Versus Placebo in Adolescents With Schizophrenia: A 6-Week, Randomized, Double-Blind, Placebo-Controlled Trial

    Ludmila Kryzhanovskaya;S. Charles Schulz;Christopher McDougle;Jean A. Frazier

  • Effects of clozapine and olanzapine on cytokine systems are closely linked to weight gain and drug-induced fever.

    Michael Kluge;Andreas Schuld;Alexander Schacht;Hubertus Himmerich

  • Association of Subjective Well-Being, Symptoms, and Side Effects With Compliance After 12 Months of Treatment in Schizophrenia

    Anne Karow;Joerg Czekalla;Ralf W. Dittmann;Alexander Schacht

  • The management of ADHD in children and adolescents: bringing evidence to the clinic: perspective from the European ADHD Guidelines Group (EAGG)

    David Coghill;David Coghill;Tobias Banaschewski;Samuele Cortese;Philip Asherson

  • Congenital adrenal hyperplasia II: Gender-related behavior and attitudes in female salt-wasting and simple-virilizing patients

    Ralf W. Dittmann;Michael H. Kappes;Marianne E. Kappes;Doris Börger

  • Randomized double blind comparison of olanzapine vs. clozapine on subjective well‐being and clinical outcome in patients with schizophrenia

    D. Naber;M. Riedel;A. Klimke;E.‐U. Vorbach

  • Atomoxetine and methylphenidate treatment in children with ADHD: A prospective, randomized, open-label trial

    R.W. Dittmann;D.S. Fouche;C. Kratochvil;J.H. Heiligenstein

Frequent Co-Authors

Tobias Banaschewski
Tobias Banaschewski Heidelberg University
David Coghill
David Coghill University of Melbourne
Edmund J.S. Sonuga-Barke
Edmund J.S. Sonuga-Barke King's College London
Jan K. Buitelaar
Jan K. Buitelaar Radboud University
Alessandro Zuddas
Alessandro Zuddas University of Cagliari
Ian C. K. Wong
Ian C. K. Wong University of Hong Kong
Samuele Cortese
Samuele Cortese University of Southampton
Daniel Brandeis
Daniel Brandeis University of Zurich
Pieter J. Hoekstra
Pieter J. Hoekstra University Medical Center Groningen

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