World's Best Scientists 2026 revealed!

D-Index & Metrics

Psychology

D-Index
78
Citations
20520
World Ranking
1597
National Ranking
953

Nicholas S. Ialongo 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 Nicholas S. Ialongo 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: 245 publications — 80th percentile

80% of scientists in this discipline score the same or lower.

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

Nicholas S. Ialongo 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 Nicholas S. Ialongo 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: 78 D-Index — 87th percentile

87% of scientists in this discipline score the same or lower.

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

Overview

Nicholas S. Ialongo is affiliated with Johns Hopkins University in the United States. Their research spans multiple fields including Psychology, Medicine, and Social Sciences. Within these broader fields, their work focuses particularly on Clinical Psychology, Education, Epidemiology, General Health Professions, and Pediatrics, Perinatology and Child Health.

Their research topics concentrate primarily on Child and Adolescent Psychosocial and Emotional Development, Substance Abuse Treatment and Outcomes, Prenatal Substance Exposure Effects, Cannabis and Cannabinoid Research, Early Childhood Education and Development, Homelessness and Social Issues, and Youth Development and Social Support.

Frequently published venues for their work include Prevention Science and Journal of School Psychology, with five publications in each. They have also contributed to Drug and Alcohol Dependence, Administration and Policy in Mental Health and Mental Health Services Research, and Journal of Studies on Alcohol and Drugs.

Selected recent papers authored or co-authored by Nicholas S. Ialongo include:

  • State of the Art in Substance Use Prevention and Early Intervention: Applications to Pediatric Primary Care Settings (2021), published in Prevention Science
  • Adolescent cannabis and tobacco use are associated with opioid use in young adulthood-12-year longitudinal study in an urban cohort (2020), published in Addiction
  • Randomized trial testing the integration of the Good Behavior Game and MyTeachingPartner™: The moderating role of distress among new teachers on student outcomes (2020), published in Journal of School Psychology
  • Long-term consequences of bullying involvement in first grade (2023), published in Journal of School Psychology
  • Trajectories of cannabis use and risk for opioid misuse in a young adult urban cohort (2020), published in Drug and Alcohol Dependence

Nicholas S. Ialongo has collaborated extensively with several co-authors, including Jill A. Rabinowitz, Brion S. Maher, Catherine P. Bradshaw, Rashelle J. Musci, and Beth A. Reboussin, with collaboration counts ranging from seven to twelve publications with each.

Best Publications

  • The effect of the level of aggression in the first grade classroom on the course and malleability of aggressive behavior into middle school

    Sheppard G. Kellam;Xiange Ling;Rolande Merisca;C. Hendricks Brown

  • Maximizing the Implementation Quality of Evidence-Based Preventive Interventions in Schools: A Conceptual Framework

    Celene E. Domitrovich;Catherine P. Bradshaw;Jeanne M. Poduska;Kimberly Hoagwood

  • Barriers to children's mental health services.

    Pamela L. Owens;Kimberly Hoagwood;Sarah M. Horwitz;Philip J. Leaf

  • The impact of school-wide positive behavioral interventions and supports (PBIS) on the organizational health of elementary schools.

    Catherine P. Bradshaw;Christine W. Koth;Katherine B. Bevans;Nicholas Ialongo

  • The course and malleability of aggressive behavior from early first grade into middle school: results of a developmental epidemiologically-based preventive trial

    Sheppard G. Kellam;George W. Rebok;Nicholas Ialongo;Lawrence S. Mayer

  • Proximal Impact of Two First-Grade Preventive Interventions on the Early Risk Behaviors for Later Substance Abuse, Depression, and Antisocial Behavior

    Nicholas S. Ialongo;Lisa Werthamer;Sheppard G. Kellam;C. Hendricks Brown

  • The distal impact of two first-grade preventive interventions on conduct problems and disorder in early adolescence.

    Nick Ialongo;Jeanne M. Poduska;Lisa Werthamer;Sheppard Kellam

  • INTEGRATED MODELS OF SCHOOL-BASED PREVENTION: LOGIC AND THEORY

    Celene E. Domitrovich;Catherine P. Bradshaw;Mark T. Greenberg;Dennis Embry

  • Modeling Growth in Boys' Aggressive Behavior Across Elementary School: Links to Later Criminal Involvement, Conduct Disorder, and Antisocial Personality Disorder

    Cindy M. Schaeffer;Hanno Petras;Nicholas Ialongo;Jeanne M. Poduska

  • The Significance of Self‐Reported Anxious Symptoms in First Grade Children: Prediction to Anxious Symptoms and Adaptive Functioning in Fifth Grade

    Nicholas S Ialongo;Gail Edelsohn;Lisa Werthamer-Larsson;Lisa Crockett

  • The relationship between perceptions of neighborhood characteristics and substance use among urban African American adolescents.

    Sharon F. Lambert;Tamara L. Brown;Clarenda M. Phillips;Nicholas S. Ialongo

  • The impact of two universal randomized first- and second-grade classroom interventions on young adult suicide ideation and attempts ☆

    Holly C. Wilcox;Sheppard G. Kellam;Sheppard G. Kellam;C. Hendricks Brown;Jeanne M. Poduska

  • Longitudinal Impact of Two Universal Preventive Interventions in First Grade on Educational Outcomes in High School

    Catherine P. Bradshaw;Jessika H. Zmuda;Sheppard G. Kellam;Nicholas S. Ialongo

  • Additive effects of psychostimulants, parent training, and self-control therapy with ADHD children.

    Wade F. Horn;Nicholas S. Ialongo;John M. Pascoe;Gregory Greenberg

  • Empirically Derived Subtypes of Child Academic and Behavior Problems: Co-Occurrence and Distal Outcomes

    Wendy M. Reinke;Keith C. Herman;Hanno Petras;Nicholas S. Ialongo

  • A comparison of girls' and boys' aggressive-disruptive behavior trajectories across elementary school: Prediction to young adult antisocial outcomes.

    Cindy M. Schaeffer;Hanno Petras;Nicholas Ialongo;Katherine E. Masyn

  • School-based service utilization among urban children with early onset educational and mental health problems: The squeaky wheel phenomenon.

    Catherine P. Bradshaw;Jacquelyn A. Buckley;Nicholas S. Ialongo

  • Children with co-occurring academic and behavior problems in first grade: Distal outcomes in twelfth grade

    Dana Darney;Wendy M. Reinke;Keith C. Herman;Melissa Stormont

  • A Further Look at the Prognostic Power of Young Children's Reports of Depressed Mood and Feelings

    Nicholas S. Ialongo;Gail Edelsohn;Sheppard G. Kellam

  • Developmental epidemiological courses leading to antisocial personality disorder and violent and criminal behavior: Effects by young adulthood of a universal preventive intervention in first- and second-grade classrooms

    Hanno Petras;Hanno Petras;Sheppard G. Kellam;Sheppard G. Kellam;C. Hendricks Brown;Bengt O. Muthén

  • The significance of self-reported anxious symptoms in first-grade children.

    Nick Ialongo;Gail Edelsohn;Lisa Werthamer-Larsson;Lisa Crockett

Frequent Co-Authors

Sheppard G. Kellam
Sheppard G. Kellam Johns Hopkins University
Sharon F. Lambert
Sharon F. Lambert George Washington University
Catherine P. Bradshaw
Catherine P. Bradshaw University of Virginia
Beth A. Reboussin
Beth A. Reboussin Wake Forest University
Kerry M. Green
Kerry M. Green University of Maryland, College Park
George R. Uhl
George R. Uhl University of Maryland, Baltimore
Elizabeth A. Stuart
Elizabeth A. Stuart Johns Hopkins University
Silvia S. Martins
Silvia S. Martins Columbia University
Renee M. Johnson
Renee M. Johnson Johns Hopkins University
James C. Anthony
James C. Anthony Michigan State University

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