World's Best Scientists 2026 revealed!

D-Index & Metrics

Psychology

D-Index
40
Citations
6234
World Ranking
8280
National Ranking
4426

Nicole Harlaar 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 Nicole Harlaar 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: 79 publications — 8th percentile

8% of scientists in this discipline score the same or lower.

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

Nicole Harlaar 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 Nicole Harlaar 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: 40 D-Index — 30th percentile

30% of scientists in this discipline score the same or lower.

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

Overview

Nicole Harlaar is affiliated with the University of Colorado Anschutz Medical Campus in the United States. Their research intersects the fields of Medicine and Psychology, with a focus on Clinical Psychology, Safety Research, Obstetrics and Gynecology, Public Health, Environmental and Occupational Health, as well as Pediatrics, Perinatology, and Child Health.

The scientist's work centers on several main topics, including:

  • Child and Adolescent Psychosocial and Emotional Development
  • Child Abuse and Trauma
  • Child Welfare and Adoption
  • COVID-19 Impact on Reproduction
  • Maternal Mental Health During Pregnancy and Postpartum
  • Global Maternal and Child Health

Nicole Harlaar has published research in notable venues such as Child Psychiatry & Human Development and the American Journal of Health Promotion. Significant recent papers include:

  • "Assessing the Mental Health of Maltreated Youth with Child Welfare Involvement Using Multi-Informant Reports" (2020) in Child Psychiatry & Human Development
  • "The Impact of COVID-19 on Pregnant Women and Children: Recommendations for Health Promotion" (2023) in the American Journal of Health Promotion

The scientist has collaborated frequently with several researchers, including:

  • Bridget A. Makol
  • Andres De Los Reyes
  • Edward F. Garrido
  • Heather N. Taussig
  • Whitney P. Witt

Nicole Harlaar's research contributes to understanding the mental health and developmental challenges faced by vulnerable youth, especially those involved in child welfare systems. Additionally, their recent work addresses the effects of the COVID-19 pandemic on pregnant women and children, providing health promotion recommendations tailored to these populations.

The interdisciplinary approach combines clinical psychology with public health perspectives to study maternal mental health during pregnancy and postpartum, along with the broader impacts of global health crises on reproduction and child development.

Best Publications

  • Predicting school achievement from general cognitive ability, self-perceived ability, and intrinsic value.

    Birgit Spinath;Frank M. Spinath;Nicole Harlaar;Robert Plomin

  • The high heritability of educational achievement reflects many genetically influenced traits, not just intelligence.

    Eva Krapohl;Kaili Rimfeld;Nicholas G. Shakeshaft;Maciej Trzaskowski

  • Discrepancies between Sexual Desire and Sexual Activity: Gender Differences and Associations with Relationship Satisfaction

    Pekka Santtila;Ingrid Wager;Katarina Witting;Nicole Harlaar

  • Genetic influences on early word recognition abilities and disabilities: a study of 7-year-old twins

    Nicole Harlaar;Frank M. Spinath;Philip S. Dale;Robert Plomin

  • Does the impact of child sexual abuse differ from maltreated but non-sexually abused children? A prospective examination of the impact of child sexual abuse on internalizing and externalizing behavior problems

    Terri Lewis;Erika McElroy;Nicole Harlaar;Desmond Kimo Runyan

  • Genetic influence on family socioeconomic status and children's intelligence.

    Maciej Trzaskowski;Nicole Harlaar;Rosalind Arden;Eva Krapohl

  • Premature and Delayed Ejaculation: Genetic and Environmental Effects in a Population-Based Sample of Finnish Twins

    Patrick Jern;Pekka Santtila;Katarina Witting;Katarina Alanko

  • Female Sexual Function and Its Associations with Number of Children, Pregnancy, and Relationship Satisfaction

    Katarina Witting;Pekka Santtila;Katarina Alanko;Nicole Harlaar

  • Intimate partner violence victimization and parenting: A systematic review

    Antonia E. Chiesa;Leigh Kallechey;Nicole Harlaar;C. Rashaan Ford

  • Common genetic effects of gender atypical behavior in childhood and sexual orientation in adulthood: a study of Finnish twins.

    Katarina Alanko;Pekka Santtila;Nicole Harlaar;Katarina Witting

  • 'Generalist genes' and mathematics in 7-year-old twins.

    Y Kovas;N Harlaar;S A Petrill;Robert Plomin

  • Overlap and specificity of genetic and environmental influences on mathematics and reading disability in 10-year-old twins.

    Yulia Kovas;Claire M. A. Haworth;Nicole Harlaar;Stephen A. Petrill

  • The correlation between reading and mathematics ability at age twelve has a substantial genetic component

    Oliver S. P. Davis;Oliver S. P. Davis;Gavin Band;Matti Pirinen;Claire M. A. Haworth;Claire M. A. Haworth

  • More Than Just IQ School Achievement Is Predicted by Self-Perceived Abilities—But for Genetic Rather Than Environmental Reasons

    Corina U. Greven;Nicole Harlaar;Nicole Harlaar;Yulia Kovas;Tomas Chamorro-Premuzic

  • Quantitative trait locus association scan of early reading disability and ability using pooled DNA and 100K SNP microarrays in a sample of 5760 children.

    E L Meaburn;N Harlaar;Ian Craig;Leonard Schalkwyk

  • Internet cognitive testing of large samples needed in genetic research.

    Claire M. A. Haworth;Nicole Harlaar;Yulia Kovas;Oliver S. P. Davis

  • A Twin Study of Teacher-Reported Mathematics Performance and Low Performance in 7-Year-Olds.

    Bonamy Oliver;Nicole Harlaar;Marianna E. Hayiou Thomas;Yulia Kovas

  • More than just IQ: A longitudinal examination of self-perceived abilities as predictors of academic performance in a large sample of UK twins.

    Tomas Chamorro-Premuzic;Nicole Harlaar;Corina U. Greven;Robert Plomin

  • Generalist genes and learning disabilities: a multivariate genetic analysis of low performance in reading, mathematics, language and general cognitive ability in a sample of 8000 12‐year‐old twins

    Claire M.A. Haworth;Yulia Kovas;Nicole Harlaar;Marianna E. Hayiou-Thomas

  • From learning to read to reading to learn: substantial and stable genetic influence.

    Nicole Harlaar;Philip S. Dale;Robert Plomin

Frequent Co-Authors

Robert Plomin
Robert Plomin King's College London
Philip S. Dale
Philip S. Dale University of New Mexico
Yulia Kovas
Yulia Kovas Goldsmiths University of London
Stephen A. Petrill
Stephen A. Petrill The Ohio State University
Kent E. Hutchison
Kent E. Hutchison University of Colorado Boulder
Claire M. A. Haworth
Claire M. A. Haworth University of Bristol
Pekka Santtila
Pekka Santtila New York University Shanghai
N. Kenneth Sandnabba
N. Kenneth Sandnabba Åbo Akademi University
Angela D. Bryan
Angela D. Bryan University of Colorado Boulder
Ian W. Craig
Ian W. Craig King's College London

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