World's Best Scientists 2026 revealed!

D-Index & Metrics

Psychology

D-Index
51
Citations
10727
World Ranking
5213
National Ranking
57

Yasser Khazaal 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 Yasser Khazaal 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: 317 publications — 89th percentile

89% of scientists in this discipline score the same or lower.

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

Yasser Khazaal 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 Yasser Khazaal 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: 51 D-Index — 56th percentile

56% of scientists in this discipline score the same or lower.

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

Overview

Yasser Khazaal is affiliated with the University of Lausanne in Switzerland. Their research primarily spans psychology and social sciences, with a significant focus on clinical psychology, sociology and political science, general health professions, psychiatry and mental health, and experimental and cognitive psychology.

The scientist's research topics include the impact of technology on adolescents, sexuality, behavior, and technology, digital mental health interventions, mental health research topics, gambling behavior and treatments, health, medicine and society, as well as COVID-19 and mental health.

Yasser Khazaal has published frequently in several venues, including:

  • Revue Médicale Suisse
  • Frontiers in Psychiatry
  • Journal of Behavioral Addictions
  • JMIR Formative Research
  • International Journal of Environmental Research and Public Health

Main co-authors who have collaborated extensively with Yasser Khazaal include:

  • Germano Vera Cruz
  • Lucien Rochat
  • Joël Billieux
  • Louise Penzenstadler
  • Daniele Zullino

Significant papers authored by Yasser Khazaal and their colleagues feature:

  • Compulsive Health-Related Internet Use and Cyberchondria, 2020, European Addiction Research
  • Mobile Apps for Mental Health Issues: Meta-Review of Meta-Analyses, 2020, JMIR mhealth and uhealth
  • Multidimensional Assessment of COVID-19-Related Fears (MAC-RF): A Theory-Based Instrument for the Assessment of Clinically Relevant Fears During Pandemics, 2020, Frontiers in Psychiatry
  • Positive and negative urgency as a single coherent construct: Evidence from a large-scale network analysis in clinical and non-clinical samples, 2021, Journal of Personality
  • Unveiling the relationships between cyberchondria and psychopathological symptoms, 2021, Journal of Psychiatric Research

Best Publications

  • Are we overpathologizing everyday life? A tenable blueprint for behavioral addiction research

    Joël Billieux;Adriano Schimmenti;Yasser Khazaal;Pierre Maurage

  • How can we conceptualize behavioural addiction without pathologizing common behaviours

    Daniel Kardefelt-Winther;Alexandre Heeren;Adriano Schimmenti;Antonius J. van Rooij

  • Why do you play World of Warcraft? An in-depth exploration of self-reported motivations to play online and in-game behaviours in the virtual world of Azeroth

    JoëL Billieux;Martial Van Der Linden;Sophia Achab;Yasser Khazaal

  • French validation of the internet addiction test.

    Yasser Khazaal;Joël Billieux;Gabriel Thorens;Riaz Khan

  • Validation of a short French version of the UPPS-P Impulsive Behavior Scale.

    Joël Billieux;Joël Billieux;Lucien Rochat;Grazia Ceschi;Arnaud Carré

  • Mobile Apps for Mental Health Issues: Meta-Review of Meta-Analyses

    Tania Lecomte;Stéphane Potvin;Marc Corbière;Stéphane Guay

  • Problematic involvement in online games

    Joël Billieux;Gabriel Thorens;Yasser Khazaal;Daniele Zullino

  • Does Self-Selection Affect Samples’ Representativeness in Online Surveys? An Investigation in Online Video Game Research

    Yasser Khazaal;Mathias Van Singer;Anne Chatton;Sophia Achab

  • Motivations to play specifically predict excessive involvement in massively multiplayer online role-playing games : evidence from an online survey

    Francesca Zanetta Dauriat;Ariane Zermatten;Joel Billieux;Gabriel Thorens

  • Maximizing the Impact of e-Therapy and Serious Gaming: Time for a Paradigm Shift

    Theresa M. Fleming;Derek de Beurs;Yasser Khazaal;Andrea Gaggioli

  • Psychological predictors of problematic involvement in massively multiplayer online role-playing games: illustration in a sample of male cybercafé players.

    Joel Billieux;Julien Chanal;Yasser Khazaal;Lucien Rochat

  • Gender Difference in Internet Use and Internet Problems among Quebec High School Students.

    Magali Dufour;Natacha Brunelle;Joel Tremblay;Danielle Leclerc

  • Brief DISCERN, six questions for the evaluation of evidence-based content of health-related websites.

    Yasser Khazaal;Anne Chatton;Sophie Cochand;Olivier Coquard

  • Relationships between Behavioural Addictions and Psychiatric Disorders: What Is Known and What Is Yet to Be Learned?

    Vladan Starcevic;Yasser Khazaal;Yasser Khazaal

  • Cyberchondria and its Relationships with Related Constructs: a Network Analysis.

    Vladan Starcevic;Vladan Starcevic;Stéphanie Baggio;Stéphanie Baggio;David Berle;David Berle;Yasser Khazaal

  • Trait gambling cognitions predict near-miss experiences and persistence in laboratory slot machine gambling.

    Joel Billieux;Joel Billieux;Martial Van der Linden;Martial Van der Linden;Yasser Khazaal;Daniele Fabio Zullino

  • Khat use: lifestyle or addiction?

    Rita Annoni Manghi;Barbara Broers;Riaz Khan;Djamel Benguettat

  • Anticonvulsant drugs in the treatment of substance withdrawal.

    Daniele Fabio Zullino;Yasser Khazaal;Josef Hättenschwiler;François Borgeat

  • Internet Use by Patients with Psychiatric Disorders in Search for General and Medical Informations

    Yasser Khazaal;Anne Chatton;Sophie Cochand;Aliosca Hoch

  • Systematic Review of Food Addiction as Measured with the Yale Food Addiction Scale: Implications for the Food Addiction Construct.

    Louise Penzenstadler;Carina Soares;Laurent Karila;Yasser Khazaal

  • Cognitive behavioural therapy for weight gain associated with antipsychotic drugs

    Yasser Khazaal;Emmanuelle Fresard;Sophie Rabia;Anne Chatton

  • Characteristics and treatment response of self-identified problematic Internet users in a behavioral addiction outpatient clinic

    Gabriel Thorens;Sophia Achab;Joel Billieux;Yasser Khazaal

Frequent Co-Authors

Joël Billieux
Joël Billieux University of Lausanne
Martial Van der Linden
Martial Van der Linden University of Geneva
Martin Preisig
Martin Preisig University of Lausanne
Gerhard Gmel
Gerhard Gmel University of Lausanne
Vladan Starcevic
Vladan Starcevic University of Sydney
Pierre Maurage
Pierre Maurage Université Catholique de Louvain
Adriano Schimmenti
Adriano Schimmenti Università degli Studi di Enna Kore
Jacques Cornuz
Jacques Cornuz University Center for General Medicine and Public Health (Unisanté)
David Berle
David Berle Australian National University
Alexandre Heeren
Alexandre Heeren Université Catholique de Louvain

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Related Online Degrees & Career Pathways

Exploring a degree in psychology unlocks various online programs and fulfilling career paths. One popular direction for psychology graduates is school counseling, a field that requires specialized education and licensure in each state.

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Similarly, those interested in becoming school counselors can review how to become a school counselor in Massachusetts and how to become a school counselor in Michigan for additional guidance.

Online psychology degrees can also open doors to careers in human resources, social work, and clinical research. Choosing the right program—and carefully researching state licensure rules—will help ensure a smooth transition from online study to professional practice.

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