World's Best Scientists 2026 revealed!
Frederick Aardema

Frederick Aardema

D-Index & Metrics

Psychology

D-Index
35
Citations
4197
World Ranking
9959
National Ranking
690

Frederick Aardema 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 Frederick Aardema 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: 129 publications — 38th percentile

38% of scientists in this discipline score the same or lower.

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

Frederick Aardema 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 Frederick Aardema 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: 35 D-Index — 16th percentile

16% of scientists in this discipline score the same or lower.

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

Overview

Frederick Aardema is affiliated with the University of Montreal in Canada and specializes primarily in the field of psychology, with a focus on clinical psychology. Their research spans 76 publications centered on psychological topics, including 55 in clinical psychology and 21 in experimental and cognitive psychology. Additional areas of study encompass cognitive neuroscience and psychiatry and mental health.

Aardema's work concentrates on several main topics, notably obsessive-compulsive spectrum disorders, which feature in 54 of their publications. Other research themes include anxiety, depression, psychometrics, treatment approaches, and cognitive processes, with 40 publications addressing these areas. The scientist also explores body image and dysmorphia studies (24 publications), eating disorders and behaviors (14 publications), and sexuality, behavior, and technology (8 publications). Their interest extends to the psychology of moral and emotional judgment and autism spectrum disorder research as well.

The frequent publication venues chosen by Aardema reflect their areas of expertise. The top journals include the Journal of Obsessive-Compulsive and Related Disorders, with seven publications, and Clinical Psychology & Psychotherapy, with six. Other venues include the Journal of Behavior Therapy and Experimental Psychiatry and the British Journal of Clinical Psychology, each with two publications, as well as Current Psychology, also featuring two contributions.

Notable recent papers authored or co-authored by Frederick Aardema include:

  • COVID-19, obsessive-compulsive disorder and invisible life forms that threaten the self (2020, Journal of Obsessive-Compulsive and Related Disorders)
  • Development and validation of the multidimensional version of the fear of self questionnaire: Corrupted, culpable and malformed feared possible selves in obsessive-compulsive and body-dysmorphic symptoms (2021, Clinical Psychology & Psychotherapy)
  • The impact of the coronavirus pandemic on specific symptom dimensions and severity in OCD: A comparison before and during COVID-19 in the context of stress responses (2021, Journal of Obsessive-Compulsive and Related Disorders)

Frequent co-authors with whom Aardema has collaborated include Shiu F. Wong, Kieron O'Connor, Adam S. Radomsky, Vahid Khosravani, and Jean-Sébastien Audet, reflecting recurring research partnerships across multiple publications.

Best Publications

  • Intrusive thoughts, obsessions, and appraisals in obsessive–compulsive disorder: A critical review

    Dominic Julien;Kieron P. O'Connor;Frederick Aardema

  • Beyond Reasonable Doubt: Reasoning Processes in Obsessive-Compulsive Disorder and Related Disorders

    Kieron O'Connor;Frederick Aardema;Marie-Claude Pélissier

  • The Menace Within: Obsessions and the Self

    Frederick Aardema;Kieron O'Connor

  • The specificity of belief domains in obsessive–compulsive symptom subtypes

    Dominic Julien;Kieron P. O’Connor;Frederick Aardema;Christo Todorov

  • Virtual reality induces dissociation and lowers sense of presence in objective reality.

    Frederick Aardema;Kieron O'Connor;Sophie Côté;Annie Taillon

  • Inferential confusion in obsessive-compulsive disorder: the inferential confusion questionnaire.

    Frederick Aardema;Kieron P. O’Connor;Paul M.G. Emmelkamp;André Marchand

  • Fear of self and obsessionality: Development and validation of the Fear of Self Questionnaire

    Frederick Aardema;Richard Moulding;Richard Moulding;Adam S. Radomsky;Guy Doron

  • Evaluation of an inference-based approach to treating obsessive-compulsive disorder.

    K P O'Connor;F Aardema;D Bouthillier;S Fournier

  • The impact of the coronavirus pandemic on specific symptom dimensions and severity in OCD: A comparison before and during COVID-19 in the context of stress responses.

    Vahid Khosravani;Frederick Aardema;Seyed Mehdi Samimi Ardestani;Farangis Sharifi Bastan

  • Repugnant obsessions: a review of the phenomenology, theoretical models, and treatment of sexual and aggressive obsessional themes in OCD

    Richard Moulding;Frederick Aardema;Kieron P. O'Connor

  • Treating delusional disorder: a comparison of cognitive-behavioural therapy and attention placebo control.

    Kieron O'Connor;Emmanuel Stip;Marie-Claude Pélissier;Frederick Aardema

  • Cognitive behaviour therapy and medication in the treatment of obsessive-compulsive disorder.

    K. P. O'Connor;F. Aardema;S. Robillard;S. Guay

  • Fear of Self and Unacceptable Thoughts in Obsessive-Compulsive Disorder.

    Gabriele Melli;Frederick Aardema;Richard Moulding

  • The imagination: cognitive, pre-cognitive, and meta-cognitive aspects.

    Kieron P. O’Connor;Frederick Aardema

  • Seeing White Bears That Are Not There: Inference Processes in Obsessions

    Frederick Aardema;Kieron O'Connor

  • Intrusions related to obsessive‐compulsive disorder: a question of content or context?

    Dominic Julien;Kieron P. O'Connor;Frederick Aardema

  • An Inference-Based Approach to Treating Obsessive-Compulsive Disorders

    Kieron O'Connor;Natalia Koszegi;Frederick Aardema;Jan van Niekerk

  • The Expanded Version of the Inferential Confusion Questionnaire: Further Development and Validation in Clinical and Non-Clinical Samples

    Frederick Aardema;Frederick Aardema;Kevin D. Wu;Yves Careau;Kieron O’Connor

  • Imaginative, dissociative, and schizotypal processes in obsessive-compulsive symptoms.

    Frederick Aardema;Frederick Aardema;Kevin D. Wu

  • The inference-based approach to obsessive-compulsive disorder: A comprehensive review of its etiological model, treatment efficacy, and model of change

    Dominic Julien;Kieron O’Connor;Frederick Aardema

  • Intrusivethoughts,obsessions,andappraisalsinobsessive-compulsive disorder: A critical review

    Dominic Julien;Kieron P. O'Connor;Frederick Aardema

Frequent Co-Authors

Kieron O'Connor
Kieron O'Connor University of Montreal
Richard Moulding
Richard Moulding Deakin University
Adam S. Radomsky
Adam S. Radomsky Concordia University
Paul M. G. Emmelkamp
Paul M. G. Emmelkamp University of Amsterdam
Yasser Khazaal
Yasser Khazaal University of Lausanne
Steffen Moritz
Steffen Moritz University Medical Center Hamburg-Eppendorf
Stéphane Guay
Stéphane Guay University of Montreal
Kurt Hahlweg
Kurt Hahlweg Technische Universität Braunschweig
Marie-France Marin
Marie-France Marin University of Quebec at Montreal
Mark H. Freeston
Mark H. Freeston Newcastle University

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