World's Best Scientists 2026 revealed!
VIEW LIST
Herman P. Schaalma

Herman P. Schaalma

Maastricht University
Netherlands

D-Index & Metrics

Discipline name D-Index World Ranking National Ranking Publications Citations
Psychology 51 5251 247 117 9507

Herman P. Schaalma publications per year

The chart shows the history of publications by Herman P. Schaalma between 1993 and 2014, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Herman P. Schaalma published across 22 years, from 1993 to 2014, averaging 6 papers a year. Output peaked at 17 publications in 2008. 6 of the 131 publications appeared in the last two years.

No. of publications
5 10 15
Bar chart. Horizontal axis: year, 1993 to 2014. Vertical axis: number of publications, 0 to 17. Peak 17 publications in 2008. 1993: 2 publications 1994: 2 publications 1995: 1 publication 1996: 4 publications 1997: 7 publications 1998: 2 publications 1999: 0 publications 2000: 0 publications 2001: 1 publication 2002: 6 publications 2003: 2 publications 2004: 7 publications 2005: 11 publications 2006: 14 publications 2007: 6 publications 2008: 17 publications 2009: 17 publications 2010: 11 publications 2011: 6 publications 2012: 9 publications 2013: 5 publications 2014: 1 publication
1993 2014

131 publications in total across all disciplines

View publications per year as a table
Herman P. Schaalma: publications per year, 1993 to 2014
Year Publications
1993 2
1994 2
1995 1
1996 4
1997 7
1998 2
1999 0
2000 0
2001 1
2002 6
2003 2
2004 7
2005 11
2006 14
2007 6
2008 17
2009 17
2010 11
2011 6
2012 9
2013 5
2014 1
Total 131
Download as CSV

Herman P. Schaalma 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 Herman P. Schaalma 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, 111–120 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: 117 publications — 30th percentile

30% 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
111–120 686 117
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
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
Download as CSV

Herman P. Schaalma 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 Herman P. Schaalma 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, 50–51 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: 51 D-Index — 56th percentile

56% 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 51
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
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
Download as CSV

Overview

Herman P. Schaalma is affiliated with Maastricht University in the Netherlands. Their academic career is connected primarily to this institution, where they have engaged in research and scholarly activities.

There are no recent papers, frequent co-authors, or specific publication venues listed for Herman P. Schaalma at this time.

Additionally, there are no recorded book publications, main fields or subfields of study, or main topics of work available in the data provided.

No awards or honors have been documented for this scientist.

Given the current data, the profile primarily highlights the institutional affiliation without further detailed information on research contributions or specific academic interests.

Best Publications

  • Self-esteem in a broad-spectrum approach for mental health promotion

    Michal Mann;Clemens M H Hosman;Herman P Schaalma;Nanne K de Vries

  • Physical exercise habit: on the conceptualization and formation of habitual health behaviours

    Henk Aarts;Theo Paulussen;Herman Schaalma

  • Intervention mapping: protocol for applying health psychology theory to prevention programmes

    Gerjo Kok;Herman Schaalma;Robert A. C. Ruiter;Pepijn Van Empelen

  • Why don't young people volunteer to give blood? An investigation of the correlates of donation intentions among young nondonors.

    K.P.H. Lemmens;C. Abraham;T. Hoekstra;R.A.C. Ruiter

  • Planning health promotion programs: An intervention mapping approach, 2nd ed.

    L. Kay Bartholomew;Guy S. Parcel;Gerjo Kok;Nell H. Gottlieb

  • Determinants of consistent condom use by adolescents: the impact of experience of sexual intercourse

    Herman Schaalma;Gerjo Kok;Louk Peters

  • HIV-related stigma and psychological distress: The harmful effects of specific stigma manifestations in various social settings

    Sarah E Stutterheim;John B Pryor;Arjan E R Bos;Robert Hoogendijk

  • Standard care impact on effects of highly active antiretroviral therapy adherence interventions: A meta-analysis of randomized controlled trials.

    Marijn de Bruin;Wolfgang Viechtbauer;Herman P. Schaalma;Gerjo Kok

  • Sex education as health promotion: What does it take?

    Herman P. Schaalma;Charles Abraham;Mary Rogers Gillmore;Gerjo Kok

  • Reducing AIDS-related stigma in developing countries: the importance of theory- and evidence-based interventions.

    Arjan E R Bos;Herman P Schaalma;John B Pryor

  • Standard care quality determines treatment outcomes in control groups of HAART-adherence intervention studies: implications for the interpretation and comparison of intervention effects

    Marijn de Bruin;Wolfgang Viechtbauer;Harm J. Hospers;Herman P. Schaalma

  • Fear of stigmatization as barrier to voluntary HIV counselling and testing in South Africa.

    Annemarie E Meiberg;Arjan E R Bos;Hans E Onya;Herman P Schaalma

  • Determinants of adolescent bicycle use for transportation and snacking behavior

    Gert-Jan de Bruijn;Stef P J Kremers;Herman Schaalma;Willem van Mechelen

  • Changing self-esteem in children and adolescents: a roadmap for future interventions

    Arjan E. R. Bos;Peter Muris;Sandra Mulkens;Herman P. Schaalma

  • Psychological and social correlates of HIV status disclosure: the significance of stigma visibility.

    Sarah E. Stutterheim;Arjan E. R. Bos;John B. Pryor;Ronald Brands

  • Modelling antecedents of blood donation motivation among non-donors of varying age and education

    K. P. H. Lemmens;C. Abraham;R. A. C. Ruiter;I. J. T. Veldhuizen

  • Promoting sexual and reproductive health in early adolescence in South Africa and Tanzania : Development of a theory- and evidence- based intervention programme

    Leif Edvard Aarø;Alan J. Flisher;Sylvia Kaaya;Hans Onya

  • A review of studies of sexual behaviour of school students in sub-Saharan Africa.

    Sylvia F. Kaaya;Alan J. Flisher;Jessie K. Mbwambo;Herman Schaalma

  • Process evaluation of the teacher training for an AIDS prevention programme

    Nazeema Ahmed;Alan J. Flisher;Catherine Mathews;Catherine Mathews;Shahieda Jansen

  • Factors associated with teachers' implementation of HIV/AIDS education in secondary schools in Cape Town, South Africa

    Mathews C;Boon H;Flisher Aj;Schaalma Hp

  • Psychological and social correlates of hiv status disclosure : The significance of stigma visibility

    Sarah Stutterheim;Ronald Brands;John Pryor;Arjan Bos

Frequent Co-Authors

Gerjo Kok
Gerjo Kok Maastricht University
Robert A. C. Ruiter
Robert A. C. Ruiter Maastricht University
Arjan E. R. Bos
Arjan E. R. Bos The Open University
Sylvia Kaaya
Sylvia Kaaya Muhimbili University of Health and Allied Sciences
Charles Abraham
Charles Abraham University of Exeter
Johannes Brug
Johannes Brug Utrecht University
Catherine Mathews
Catherine Mathews South African Medical Research Council
Alan J. Flisher
Alan J. Flisher University of Cape Town
Henk Aarts
Henk Aarts Utrecht University
John B. Pryor
John B. Pryor Illinois State University

External Links

Personal website of Herman P. Schaalma

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

Exploring a career in psychology opens up a wide array of educational and professional opportunities across the United States. When researching programs, many students consider regional strengths, with some looking at the top psychology degrees in South Dakota for their specialized offerings and others focusing on more localized options such as the top psychology degrees in Shreveport.

For those exploring nationwide options, checking the best psychology degree rankings in the US can help you compare programs on a national scale and find online degrees that fit your interests and needs. Additionally, students from the East Coast may want to look into the best psychology degree programs ranking in Virginia for regionally respected programs.

Psychology graduates often pursue diverse career pathways, including clinical counseling, organizational consulting, education, and research. Online degrees make it easier to specialize and advance your credentials, supporting flexible career growth and meeting the demands of a fast-changing job market.

Best Scientists Citing Herman P. Schaalma

Gerjo Kok

Gerjo Kok

Maastricht University

Publications: 106

Johannes Brug

Johannes Brug

Utrecht University

Publications: 68

Robert A. C. Ruiter

Robert A. C. Ruiter

Maastricht University

Publications: 59

Stef P. J. Kremers

Stef P. J. Kremers

Maastricht University

Publications: 49

Charles Abraham

Charles Abraham

University of Exeter

Publications: 40

Catherine Mathews

Catherine Mathews

South African Medical Research Council

Publications: 38

Leif Edvard Aarø

Leif Edvard Aarø

Norwegian Institute of Public Health

Publications: 36

Willem van Mechelen

Willem van Mechelen

Vrije Universiteit Amsterdam

Publications: 35

Nanne K. de Vries

Nanne K. de Vries

Maastricht University

Publications: 35

Hein de Vries

Hein de Vries

Maastricht University

Publications: 31

Susan Michie

Susan Michie

University College London

Publications: 29

Marie Johnston

Marie Johnston

University of Aberdeen

Publications: 28

Alan J. Flisher

Alan J. Flisher

University of Cape Town

Publications: 27

Gaston Godin

Gaston Godin

Université Laval

Publications: 26

Rik Crutzen

Rik Crutzen

Maastricht University

Publications: 24

Arjan E. R. Bos

Arjan E. R. Bos

The Open University

Publications: 24

Related Psychology Rankings & Guides

2027 How to Become a Licensed Counselor (LPC) in Pennsylvania

2027 How to Become a Licensed Counselor (LPC) in Pennsylvania
2027 Criminology Careers: Guide to Career Paths, Options & Salary

2027 Criminology Careers: Guide to Career Paths, Options & Salary
2027 Most Affordable Bachelor’s in Substance Abuse Counseling Online

2027 Most Affordable Bachelor’s in Substance Abuse Counseling Online
2027 Comparing Social Service Degrees

2027 Comparing Social Service Degrees
2027 Best Psychology Schools in Minnesota – Accredited Colleges & Programs

2027 Best Psychology Schools in Minnesota – Accredited Colleges & Programs
2027 DSW vs. Ph.D. in Social Work: What’s the Difference?

2027 DSW vs. Ph.D. in Social Work: What’s the Difference?
2027 Best Psychology Schools in Georgia – Accredited Colleges & Programs

2027 Best Psychology Schools in Georgia – Accredited Colleges & Programs
2027 Most Affordable Online School Counseling Degrees

2027 Most Affordable Online School Counseling Degrees
2027 How to Become a Licensed Counselor (LPC) in New Hampshire

2027 How to Become a Licensed Counselor (LPC) in New Hampshire
2027 Minnesota Psychology Licensure Requirements – How to Become a Psychologist in Minnesota

2027 Minnesota Psychology Licensure Requirements – How to Become a Psychologist in Minnesota
2027 Maine Psychology Licensure Requirements – How to Become a Psychologist in Maine

2027 Maine Psychology Licensure Requirements – How to Become a Psychologist in Maine
2027 How to Become a Licensed Counselor (LPC) in Mississippi

2027 How to Become a Licensed Counselor (LPC) in Mississippi
2027 How to Become a Christian Counselor

2027 How to Become a Christian Counselor
2027 What Can You Do with a Master’s in Educational Psychology Degree: Costs & Job Opportunities

2027 What Can You Do with a Master’s in Educational Psychology Degree: Costs & Job Opportunities
2027 MS vs. MA in Counseling: What's the Difference and Which Degree Should You Choose?

2027 MS vs. MA in Counseling: What's the Difference and Which Degree Should You Choose?
2027 How to Become a Licensed Counselor (LPC) in North Carolina

2027 How to Become a Licensed Counselor (LPC) in North Carolina
2027 How to Become a Licensed Counselor (LPC) in Georgia

2027 How to Become a Licensed Counselor (LPC) in Georgia
2027 Forensic Psychology Careers: Guide to Career Paths, Job Outlook, & Salary

2027 Forensic Psychology Careers: Guide to Career Paths, Job Outlook, & Salary
2027 How to Become a Licensed Counselor (LPC) in Virginia

2027 How to Become a Licensed Counselor (LPC) in Virginia
2027 Alabama Psychology Licensure Requirements – How to Become a Psychologist in Alabama

2027 Alabama Psychology Licensure Requirements – How to Become a Psychologist in Alabama
2027 Easiest Psychology Degree Programs

2027 Easiest Psychology Degree Programs

Recently Published Articles

2027 Is a Curriculum & Instruction Master's Degree Worth It? ROI, Salary & Career Impact

2027 Is a Curriculum & Instruction Master's Degree Worth It? ROI, Salary & Career Impact
2027 Online Christian Ministry Degree Programs With No Personal Statement or Admissions Essay Required

2027 Online Christian Ministry Degree Programs With No Personal Statement or Admissions Essay Required
2027 How to Become a Mental Health Counselor in Philadelphia, PA: Education Requirements & Certification

2027 How to Become a Mental Health Counselor in Philadelphia, PA: Education Requirements & Certification
2027 Online Entertainment Business Degree Programs With No Personal Statement or Admissions Essay Required

2027 Online Entertainment Business Degree Programs With No Personal Statement or Admissions Essay Required
2027 How To Become a Nurse Recruiter: Salary & Career Paths

2027 How To Become a Nurse Recruiter: Salary & Career Paths
2027 Best ADN Nursing Programs in Ohio: Online & Campus

2027 Best ADN Nursing Programs in Ohio: Online & Campus
2027 Environmental Science Degree Master's Programs You Can Start Without Meeting All Requirements

2027 Environmental Science Degree Master's Programs You Can Start Without Meeting All Requirements
2027 Cheapest Way to Get a Teaching Credential in Santa Ana, CA: Degree Requirements & Certification

2027 Cheapest Way to Get a Teaching Credential in Santa Ana, CA: Degree Requirements & Certification
2027 Top Cop Schools: Degrees in Criminal Justice, Police Science & Law Enforcement

2027 Top Cop Schools: Degrees in Criminal Justice, Police Science & Law Enforcement
2027 Best Online History Degree Programs

2027 Best Online History Degree Programs
2027 Online Communications Bachelor's Degree Programs With Accelerated Courses

2027 Online Communications Bachelor's Degree Programs With Accelerated Courses
2027 Psychologist vs. Therapist: Explaining the Difference

2027 Psychologist vs. Therapist: Explaining the Difference
2027 How to Become a Preschool Teacher Assistant in Arkansas: Requirements & Certification

2027 How to Become a Preschool Teacher Assistant in Arkansas: Requirements & Certification
2027 Fastest Accredited Online Leadership Programs: Accelerated Degrees and Completion Times

2027 Fastest Accredited Online Leadership Programs: Accelerated Degrees and Completion Times
2027 Gerontology Degree Careers That Do Not Require Graduate School

2027 Gerontology Degree Careers That Do Not Require Graduate School
2027 Online Criminal Justice Degree Programs With No Personal Statement or Admissions Essay Required

2027 Online Criminal Justice Degree Programs With No Personal Statement or Admissions Essay Required
2027 How to Become a Licensed Therapist (LPC) in Columbus, OH

2027 How to Become a Licensed Therapist (LPC) in Columbus, OH
2027 Online General Psychology Bachelor's Degree Programs With No Prerequisites

2027 Online General Psychology Bachelor's Degree Programs With No Prerequisites
2027 Licensing Exams Required After Completing a Biology Degree Program

2027 Licensing Exams Required After Completing a Biology Degree Program
2027 CPA vs. MBA: Explaining the Difference

2027 CPA vs. MBA: Explaining the Difference
2027 Best Dual Degree In-Person & Online Programs

2027 Best Dual Degree In-Person & Online Programs