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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Psychology 71 2177 1981 1271 1130 277 17899

Nilam Ram publications per year

The chart shows the history of publications by Nilam Ram between 2003 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Nilam Ram published across 23 years, from 2003 to 2025, averaging 16.9 papers a year. Output peaked at 38 publications in 2024. 69 of the 389 publications appeared in the last two years.

No. of publications
10 20 30
Bar chart. Horizontal axis: year, 2003 to 2025. Vertical axis: number of publications, 0 to 38. Peak 38 publications in 2024. 2003: 1 publication 2004: 2 publications 2005: 4 publications 2006: 1 publication 2007: 4 publications 2008: 5 publications 2009: 12 publications 2010: 6 publications 2011: 12 publications 2012: 9 publications 2013: 19 publications 2014: 24 publications 2015: 17 publications 2016: 18 publications 2017: 23 publications 2018: 29 publications 2019: 23 publications 2020: 21 publications 2021: 28 publications 2022: 33 publications 2023: 29 publications 2024: 38 publications 2025: 31 publications
2003 2025

389 publications in total across all disciplines

View publications per year as a table
Nilam Ram: publications per year, 2003 to 2025
Year Publications
2003 1
2004 2
2005 4
2006 1
2007 4
2008 5
2009 12
2010 6
2011 12
2012 9
2013 19
2014 24
2015 17
2016 18
2017 23
2018 29
2019 23
2020 21
2021 28
2022 33
2023 29
2024 38
2025 31
Total 389
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Nilam Ram 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 Nilam Ram sits on this spectrum.

No. of scientists
200 400 600
Bar chart with 69 bars. Horizontal axis: publications, 31–40 to 705+. Vertical axis: number of scientists, 0 to 736. Most scientists, 736, have 101–110 publications. The last bar groups every scientist with 705 publications or more. The highlighted bar, 271–280 publications, is where this scientist sits. 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
31–40 publications 705+

This scientist: 277 publications — 85th percentile

85% of scientists in this discipline score the same or lower.

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

View publications distribution as a table
Number of Psychology scientists by publication count, Research.com 2026 ranking edition. Based on 11,416 ranked scientists.
Publications Scientists This scientist
31–40 6
41–50 52
51–60 138
61–70 299
71–80 461
81–90 605
91–100 713
101–110 736
111–120 686
121–130 670
131–140 644
141–150 597
151–160 576
161–170 477
171–180 450
181–190 397
191–200 343
201–210 328
211–220 313
221–230 283
231–240 226
241–250 196
251–260 201
261–270 171
271–280 151 277
281–290 139
291–300 113
301–310 102
311–320 100
321–330 76
331–340 92
341–350 85
351–360 69
361–370 71
371–380 63
381–390 58
391–400 57
401–410 43
411–420 33
421–430 50
431–440 41
441–450 32
451–460 27
461–470 28
471–480 25
481–490 28
491–500 20
501–510 23
511–520 26
521–530 17
531–540 21
541–550 14
551–560 16
561–570 10
571–580 22
581–590 9
591–600 14
601–610 9
611–620 11
621–630 4
631–640 7
641–650 5
651–660 10
661–670 8
671–680 8
681–690 4
691–700 3
701–704 4
705+ 100
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Nilam Ram 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 Nilam Ram sits on this spectrum.

No. of scientists
200 400 600
Bar chart with 58 bars. Horizontal axis: D-Index, 30–31 to 144+. Vertical axis: number of scientists, 0 to 702. Most scientists, 702, have 32–33 D-Index. The last bar groups every scientist with 144 D-Index or more. The highlighted bar, 70–71 D-Index, is where this scientist sits. 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
30–31 D-Index 144+

This scientist: 71 D-Index — 82nd percentile

82% of scientists in this discipline score the same or lower.

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

View D-Index distribution as a table
Number of Psychology scientists by D-index, Research.com 2026 ranking edition. Based on 11,416 ranked scientists.
D-Index Scientists This scientist
30–31 398
32–33 702
34–35 671
36–37 659
38–39 641
40–41 671
42–43 617
44–45 558
46–47 495
48–49 487
50–51 445
52–53 390
54–55 408
56–57 345
58–59 325
60–61 321
62–63 248
64–65 290
66–67 218
68–69 219
70–71 215 71
72–73 183
74–75 169
76–77 132
78–79 137
80–81 120
82–83 112
84–85 86
86–87 101
88–89 83
90–91 77
92–93 70
94–95 78
96–97 58
98–99 53
100–101 57
102–103 48
104–105 53
106–107 46
108–109 24
110–111 35
112–113 27
114–115 32
116–117 31
118–119 22
120–121 16
122–123 24
124–125 18
126–127 11
128–129 19
130–131 10
132–133 16
134–135 10
136–137 12
138–139 8
140–141 5
142–143 12
144+ 98
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Overview

Nilam Ram is affiliated with Stanford University in the United States and their research spans several key areas within psychology and social sciences. Their scholarly output includes 163 publications in psychology and 79 in social sciences, reflecting a strong interdisciplinary focus.

The primary subfields of study covered in their work include:

  • Social Psychology
  • Experimental and Cognitive Psychology
  • Sociology and Political Science
  • Clinical Psychology
  • Applied Psychology

The main topics Nilam Ram has explored in their research comprise:

  • Mental Health Research Topics
  • Psychological Well-being and Life Satisfaction
  • Attachment and Relationship Dynamics
  • Aging and Gerontology Research
  • Impact of Technology on Adolescents
  • Child and Adolescent Psychosocial and Emotional Development
  • Health disparities and outcomes

Nilam Ram has published in several venues repeatedly, with notable frequency in:

  • Innovation in Aging (14 publications)
  • Psychology and Aging (12 publications)
  • The Journals of Gerontology Series B (6 publications)
  • Psychoneuroendocrinology (4 publications)
  • Multivariate Behavioral Research (4 publications)

The scientist's recent published papers include:

  • People, places, and time: a large-scale, longitudinal study of transformed avatars and environmental context in group interaction in the metaverse, 2023, Journal of Computer-Mediated Communication
  • Time for the Human Screenome Project, 2020, Nature
  • Digital Trace Data Collection for Social Media Effects Research: APIs, Data Donation, and (Screen) Tracking, 2023, Communication Methods and Measures
  • The idiosyncrasies of everyday digital lives: Using the Human Screenome Project to study user behavior on smartphones, 2020, Computers in Human Behavior
  • Adult development and aging in historical context., 2020, American Psychologist

Nilam Ram has collaborated frequently with several researchers in their field. Frequent co-authors include:

  • Denis Gerstorf
  • Johanna Drewelies
  • Byron Reeves
  • Thomas N. Robinson
  • Christiane A. Hoppmann

Best Publications

  • Emotional experience improves with age: evidence based on over 10 years of experience sampling.

    Laura L. Carstensen;Bulent Turan;Susanne Scheibe;Nilam Ram

  • Growth Mixture Modeling: A Method for Identifying Differences in Longitudinal Change Among Unobserved Groups.

    Nilam Ram;Kevin J. Grimm

  • Time-Structured and Net Intraindividual Variability: Tools for Examining the Development of Dynamic Characteristics and Processes

    Nilam Ram;Denis Gerstorf

  • Boredom Prone or Nothing to Do? Distinguishing Between State and Trait Leisure Boredom and Its Association with Substance Use in South African Adolescents

    Elizabeth H. Weybright;Linda L. Caldwell;Nilam Ram;Edward A. Smith

  • Individual differences in boys' and girls' timing and tempo of puberty: modeling development with nonlinear growth models.

    Kristine Marceau;Nilam Ram;Renate M. Houts;Kevin J. Grimm

  • Nonlinear Growth Curves in Developmental Research

    Kevin J. Grimm;Nilam Ram;Fumiaki Hamagami

  • Using simple and complex growth models to articulate developmental change: Matching theory to method

    Nilam Ram;Kevin Grimm

  • Studying Intraindividual Variability: What We Have Learned That Will Help Us Understand Lives in Context

    John R. Nesselroade;Nilam Ram

  • Late-life decline in well-being across adulthood in Germany, the United Kingdom, and the United States: Something is seriously wrong at the end of life.

    Denis Gerstorf;Nilam Ram;Guy Mayraz;Mira Hidajat

  • Emotion as a thermostat: Representing emotion regulation using a damped oscillator model

    Sy-Miin Chow;Nilam Ram;Steven M. Boker;Frank Fujita

  • Decline in Life Satisfaction in Old Age: Longitudinal Evidence for Links to Distance-to-Death

    Denis Gerstorf;Nilam Ram;Christina Röcke;Ulman Lindenberger

  • Life Satisfaction Shows Terminal Decline in Old Age: Longitudinal Evidence from the German Socio-Economic Panel Study (SOEP).

    Denis Gerstorf;Nilam Ram;Ryne Estabrook;Jürgen Schupp;Jürgen Schupp

  • The Effects of Stress on Cognitive Aging, Physiology and Emotion (ESCAPE) Project.

    Stacey B. Scott;Jennifer E. Graham-Engeland;Christopher G. Engeland;Joshua M. Smyth

  • Long-Term Antecedents and Outcomes of Perceived Control

    Frank J. Infurna;Denis Gerstorf;Nilam Ram;Jürgen Schupp

  • A daily analysis of physical activity and satisfaction with life in emerging adults.

    Jaclyn P. Maher;Shawna E. Doerksen;Steriani Elavsky;Amanda L. Hyde

  • Automatic search for fMRI connectivity mapping: An alternative to Granger causality testing using formal equivalences among SEM path modeling, VAR, and unified SEM

    Kathleen M. Gates;Peter Molenaar;Frank Gerard Hillary;Nilam Ram

  • Saving energy in an office environment: A serious game intervention

    Brian Orland;Nilam Ram;Dean Lang;Kevin Houser

  • Acorn mast drives long-term dynamics of rodent and songbird populations

    Ethan D. Clotfelter;Amy B. Pedersen;Jack A. Cranford;Nilam Ram

  • Nonlinear Growth Models in Mplus and SAS

    Kevin J. Grimm;Nilam Ram

  • Daily physical activity and life satisfaction across adulthood

    Jaclyn P. Maher;Aaron L. Pincus;Nilam Ram;David E. Conroy

  • Cohort Differences in Cognitive Aging and Terminal Decline in the Seattle Longitudinal Study

    Denis Gerstorf;Nilam Ram;Christiane Hoppmann;Sherry L. Willis

Frequent Co-Authors

Denis Gerstorf
Denis Gerstorf Humboldt-Universität zu Berlin
Gert G. Wagner
Gert G. Wagner German Institute for Economic Research
David E. Conroy
David E. Conroy Pennsylvania State University
Jürgen Schupp
Jürgen Schupp German Institute for Economic Research
Aaron L. Pincus
Aaron L. Pincus Pennsylvania State University
Frank J. Infurna
Frank J. Infurna Arizona State University
Pamela M. Cole
Pamela M. Cole Pennsylvania State University
Christiane A. Hoppmann
Christiane A. Hoppmann University of British Columbia
Kevin J. Grimm
Kevin J. Grimm Arizona State University
Ulman Lindenberger
Ulman Lindenberger Max Planck Institute for Human Development

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