World's Best Scientists 2026 revealed!

D-Index & Metrics

Psychology

D-Index
45
Citations
6847
World Ranking
6767
National Ranking
3664

Timothy G. Heckman 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 Timothy G. Heckman 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: 82 publications — 9th percentile

9% of scientists in this discipline score the same or lower.

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

Timothy G. Heckman 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 Timothy G. Heckman 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

Timothy G. Heckman is affiliated with the University of Georgia in the United States and has contributed extensively to research in physics and astronomy. Their main field of study centers on Physics and Astronomy, with a particular focus on Astronomy and Astrophysics, Instrumentation, Public Health, Environmental and Occupational Health, General Health Professions, and Applied Psychology.

The scientist's research covers several main topics including:

  • Astrophysics and Star Formation Studies
  • Astronomy and Astrophysical Research
  • Stellar, planetary, and galactic studies
  • Telemedicine and Telehealth Implementation
  • Digital Mental Health Interventions
  • HIV/AIDS Research and Interventions
  • Spectroscopy and Laser Applications

Heckman's recent publications demonstrate an interdisciplinary approach, with work spanning mental health interventions to advanced astrophysical studies. Notable papers include:

  • "Psychotherapy at a Distance," 2020, American Journal of Psychiatry
  • "The efficacy of synchronous teletherapy versus in-person therapy: A meta-analysis of randomized clinical trials," 2021, Clinical Psychology Science and Practice
  • "Zoom-in to zone-out: Therapists report less therapeutic skill in telepsychology versus face-to-face therapy during the COVID-19 pandemic," 2021, Psychotherapy
  • "CLASSY IV. Exploring UV Diagnostics of the Interstellar Medium in Local High-z Analogs at the Dawn of the JWST Era," 2022, The Astrophysical Journal
  • "CLASSY. II. A Technical Overview of the COS Legacy Archive Spectroscopic Survey," 2022, The Astrophysical Journal Supplement Series

Their work appears in several publication venues, with frequent contributions to:

  • arXiv (Cornell University)
  • American Journal of Psychiatry
  • Clinical Psychology Science and Practice
  • Psychotherapy
  • The Astrophysical Journal

Frequent co-authors associated with Timothy G. Heckman include:

  • Matthew Hayes
  • Danielle A. Berg
  • Claudia Scarlata
  • John Chisholm
  • R. Amorín

This range of collaborations, combined with a diverse set of research topics, illustrates the interdisciplinary nature of their scientific contributions.

Best Publications

  • Barriers to care among persons living with HIV/AIDS in urban and rural areas.

    T G Heckman;A M Somlai;J Peters;J Walker

  • Outcomes of a randomized community-level HIV prevention intervention for women living in 18 low-income housing developments.

    Kathleen J. Sikkema;Jeffrey A. Kelly;Richard A. Winett;Laura J. Solomon

  • Depression and Thoughts of Suicide Among Middle-Aged and Older Persons Living With HIV-AIDS

    Seth C. Kalichman;Timothy Heckman;Arlene Kochman;Kathleen Sikkema

  • Sensation seeking as an explanation for the association between substance use and HIV-related risky sexual behavior

    Seth C. Kalichman;Timothy Heckman;Jeffrey A. Kelly

  • The Effect of Telephone-Administered Psychotherapy on Symptoms of Depression and Attrition: A Meta-Analysis

    David C. Mohr;Lea Vella;Stacey Hart;Timothy Heckman

  • Bridging the gap between the science and service of HIV prevention: transferring effective research-based HIV prevention interventions to community AIDS service providers.

    Jeffrey A. Kelly;Anton M. Somlai;Wayne J. DiFranceisco;Laura L. Otto-Salaj

  • Transfer of research-based HIV prevention interventions to community service providers: Fidelity and adaptation

    Kelly Ja;Heckman Tg;Stevenson Ly;Williams Pn

  • HIV risk behaviors among women living in low-income, inner-city housing developments.

    K J Sikkema;T G Heckman;J A Kelly;E S Anderson

  • Adherence to antiretroviral therapy in rural persons living with HIV disease in the United States.

    B. D. Heckman;Sheryl L Catz;T. G. Heckman;J. G. Miller

  • The chronic illness quality of life (CIQOL) model: explaining life satisfaction in people living with HIV disease.

    Timothy G Heckman

  • Psychological symptoms among persons 50 years of age and older living with HIV disease.

    T. G. Heckman;B. D. Heckman;A. Kochman;K. J. Sikkema

  • Information-motivation-behavioral skills (IMB) model: Testing direct and mediated treatment effects on condom use among women in low-income housing

    Eileen S. Anderson;David A. Wagstaff;Timothy G. Heckman;Richard A. Winett

  • Psychosocial Differences Between Urban and Rural People Living With HIV/AIDS

    Timothy G. Heckman;Anton M. Somlai;Seth C. Kalichman;Stephen L. Franzoi

  • Resilience, stress, and life quality in older adults living with HIV/AIDS.

    Xindi Fang;Wilson Vincent;Sarah K. Calabrese;Timothy G. Heckman

  • Factors Predicting Continued High-Risk Behavior among Gay Men in Small Cities: Psychological, Behavioral, and Demographic Characteristics Related to Unsafe Sex.

    Kelly Ja;Sikkema Kj;Winett Ra;Solomon Lj

  • Psychotherapy at a Distance

    John C Markowitz;Barbara Milrod;Timothy G Heckman;Maja Bergman

  • Coping strategies and emotional wellbeing among HIV-infected men and women experiencing AIDS-related bereavement.

    Sikkema Kj;Kalichman Sc;Hoffmann R;Koob Jj

  • Patterns, Predictors and Gender Differences in HIV Risk Among Severely Mentally Ill Men and Women

    Laura L. Otto-Salaj;Timothy G. Heckman;L. Yvonne Stevenson;Jeffrey A. Kelly

  • Patterns and Correlates of Sexual Activity and Condom Use Behavior in Persons 50-Plus Years of Age Living with HIV/AIDS

    Travis I. Lovejoy;Timothy G. Heckman;Kathleen J. Sikkema;Nathan B. Hansen

  • Outcomes of a randomized, controlled community-level HIV prevention intervention for adolescents in low-income housing developments.

    Kathleen J Sikkema;Eileen S Anderson;Jeffrey A Kelly;Richard A Winett

  • HIV risk differences between African-American and white men who have sex with men.

    T. G. Heckman;J. A. Kelly;L. M. Bogart;S. C. Kalichman

Frequent Co-Authors

Kathleen J. Sikkema
Kathleen J. Sikkema Columbia University
Jeffrey A. Kelly
Jeffrey A. Kelly Medical College of Wisconsin
Seth C. Kalichman
Seth C. Kalichman University of Connecticut
Roger A. Roffman
Roger A. Roffman University of Washington
Nathan B. Hansen
Nathan B. Hansen University of Georgia
Richard A. Winett
Richard A. Winett Virginia Tech
Raymond G. Hoffmann
Raymond G. Hoffmann Medical College of Wisconsin
John C. Markowitz
John C. Markowitz Columbia University
Julie A. Suhr
Julie A. Suhr Ohio University
David R. Holtgrave
David R. Holtgrave University at Albany, State University of New York

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