World Scientist and University Rankings 2025

World Education 60.649 Scientists Subject Rankings - 2025

The AD Scientific Index (Alper-Doger Scientific Index) provides the most comprehensive analysis across 13 main fields and 211 sub-branches at global, national, and regional levels. These analyses are based on indicators such as the H-index, i10-index, and citation count, including their values from the last 6 yearsAs of Apr 17, 2025, the rankings are determined according to the Total H IndexBETA VERSION: The subject field rankings for the world, regions, countries, and universities are currently in their Beta phase. This is due to the exclusion of (1.120.277) scientists categorized under ‘Others’, whose profiles have yet to be determined, edited, or classified. As updates are made to these fields, the rankings will be adjusted accordingly. Note: Please keep this in mind while reviewing the rankings. For further details, explore our [University Subject Rankings].

* Total H IndexRankings
Ranking Based On Selection: 1
Herbert W Marsh
methodological/substantive synergy - self-concept - evaluation of teaching - peer review - multilevel structural equation model
Metrics
H-Index
i10 Index
Citation Counts
214
663
197,413
* Total H IndexRankings
Ranking Based On Selection: 3
Marinus Van Ijzendoorn
psychology
psychiatry
educatio
Metrics
H-Index
i10 Index
Citation Counts
171
658
132,650
* Total H IndexRankings
Ranking Based On Selection: 4
Steve Graham
education
wriiting
learning disabilitie
Metrics
H-Index
i10 Index
Citation Counts
159
462
84,021
* Total H IndexRankings
Ranking Based On Selection: 5
Robert C Pianta
education
developmental psychology
teacher-student relationships
Metrics
H-Index
i10 Index
Citation Counts
154
382
114,402
* Total H IndexRankings
Ranking Based On Selection: 6
Greg J Duncan
Poverty
public policy
education
child development
income distribution
Metrics
H-Index
i10 Index
Citation Counts
150
442
106,143
* Total H IndexRankings
Ranking Based On Selection: 7
Ulf Ekelund
Physical Activity
Epidemiology
Public Health
Sport Science
Metrics
H-Index
i10 Index
Citation Counts
149
498
149,457
* Total H IndexRankings
Ranking Based On Selection: 8
Wong Ming Hung
Environmental Science
Environmental Toxicology
Environmental Restoration
Waste Recycling
Aquacultur
Metrics
H-Index
i10 Index
Citation Counts
144
780
79,928
* Total H IndexRankings
Ranking Based On Selection: 9
Cees Van Der Vleuten
Medical Education - Assessment of Professional Competence
Metrics
H-Index
i10 Index
Citation Counts
140
686
71,949
* Total H IndexRankings
Ranking Based On Selection: 10
Douglas Fuchs
educational psychology
special education
educational policy
Metrics
H-Index
i10 Index
Citation Counts
136
355
66,022

Is Your University Ready for the Future?

Compare your institution’s global, national, and city-level ranking with its 20 closest competitors and set strategic goals.
Gain insights from detailed performance analyses of scientists across 13 major disciplines, identify your strengths, improve weaknesses, and gain a competitive edge.. Check Your Free Sample Performance Analysis

* Total H IndexRankings
Ranking Based On Selection: 11
Chin Chung Tsai
science education
computers & education
educational technolog
Metrics
H-Index
i10 Index
Citation Counts
130
401
58,793
* Total H IndexRankings
Ranking Based On Selection: 12
Michael Wehmeyer
self-determination
special education
intellectual disability
positive psychology
Metrics
H-Index
i10 Index
Citation Counts
129
410
62,015
* Total H IndexRankings
Ranking Based On Selection: 13
Nima Rezaei
Immunology
Genetics
Infectious Diseases
Pediatric
Metrics
H-Index
i10 Index
Citation Counts
124
996
104,502
* Total H IndexRankings
Ranking Based On Selection: 15
Barry Fraser
learning environments
educational evaluation
science educatio
Metrics
H-Index
i10 Index
Citation Counts
124
391
53,287
* Total H IndexRankings
Ranking Based On Selection: 16
Shuang Li
educational studie
Metrics
H-Index
i10 Index
Citation Counts
120
921
69,087
* Total H IndexRankings
Ranking Based On Selection: 17
Wolff Michael Roth
Education
anthropology
sociology
linguistics
psycholog
Metrics
H-Index
i10 Index
Citation Counts
120
566
53,494
* Total H IndexRankings
Ranking Based On Selection: 18
Will Hopkins
Exercise and Sports Medicine and Scienc
Metrics
H-Index
i10 Index
Citation Counts
119
332
61,367
* Total H IndexRankings
Ranking Based On Selection: 19
Francisco B Ortega
physical activity
exercise
health
obesity
Metrics
H-Index
i10 Index
Citation Counts
118
474
71,193
* Total H IndexRankings
Ranking Based On Selection: 20
Jim Cummins
Education
Language
Bilingualis
Metrics
H-Index
i10 Index
Citation Counts
118
312
94,890
* Total H IndexRankings
Ranking Based On Selection: 21
Julio Cabero Almenara
Educación
Tecnología Educativa
TIC
Metrics
H-Index
i10 Index
Citation Counts
117
526
52,696
* Total H IndexRankings
Ranking Based On Selection: 22
Tony Onwuegbuzie
mixed methods
qualitative research
quantitative research
program evaluation
Metrics
H-Index
i10 Index
Citation Counts
116
379
122,137
* Total H IndexRankings
Ranking Based On Selection: 23
Paul A Kirschner
Instructional Design
Educational Psychology
Educational Technology
Computer Supported Collaborative Learning
Metrics
H-Index
i10 Index
Citation Counts
113
348
65,347
* Total H IndexRankings
Ranking Based On Selection: 24
Ross Arena
Exercise testing
Cardiac Rehab
Exercise
Cardiopulmonary Disease
Healthy Living Medicine. ..
Metrics
H-Index
i10 Index
Citation Counts
112
555
93,135
* Total H IndexRankings
Ranking Based On Selection: 25
Andrew Jones
exercise
physiology
nitrate
endurance
fatigue
Metrics
H-Index
i10 Index
Citation Counts
112
325
44,254
* Total H Index Rankings
Rankings
Ranking Based On Selection: 1
Herbert W Marsh
          Metrics
H-Index
i10-Index
Citation Counts
214
663
197,413
methodological/substantive synergy - self-concept - evaluation of teaching - peer review - multilevel structural equation model
* Total H Index Rankings
Rankings
Ranking Based On Selection: 2
Richard E Mayer
          Metrics
H-Index
i10-Index
Citation Counts
189
567
242,741
* Total H Index Rankings
Rankings
Ranking Based On Selection: 3
Marinus Van Ijzendoorn
          Metrics
H-Index
i10-Index
Citation Counts
171
658
132,650
* Total H Index Rankings
Rankings
Ranking Based On Selection: 4
Steve Graham
          Metrics
H-Index
i10-Index
Citation Counts
159
462
84,021
* Total H Index Rankings
Rankings
Ranking Based On Selection: 5
Robert C Pianta
          Metrics
H-Index
i10-Index
Citation Counts
154
382
114,402
education
developmental psychology
teacher-student relationships
* Total H Index Rankings
Rankings
Ranking Based On Selection: 6
Greg J Duncan
          Metrics
H-Index
i10-Index
Citation Counts
150
442
106,143
Poverty
public policy
education
child development
income distribution
* Total H Index Rankings
Rankings
Ranking Based On Selection: 7
Ulf Ekelund
          Metrics
H-Index
i10-Index
Citation Counts
149
498
149,457
Physical Activity
Epidemiology
Public Health
Sport Science
* Total H Index Rankings
Rankings
Ranking Based On Selection: 8
Wong Ming Hung
          Metrics
H-Index
i10-Index
Citation Counts
144
780
79,928
Environmental Science
Environmental Toxicology
Environmental Restoration
Waste Recycling
Aquacultur
* Total H Index Rankings
Rankings
Ranking Based On Selection: 9
Cees Van Der Vleuten
          Metrics
H-Index
i10-Index
Citation Counts
140
686
71,949
Medical Education - Assessment of Professional Competence
* Total H Index Rankings
Rankings
Ranking Based On Selection: 10
Douglas Fuchs
          Metrics
H-Index
i10-Index
Citation Counts
136
355
66,022
educational psychology
special education
educational policy

Is Your University Ready for the Future?

Compare your institution’s global, national, and city-level ranking with its 20 closest competitors and set strategic goals.
Gain insights from detailed performance analyses of scientists across 13 major disciplines, identify your strengths, improve weaknesses, and gain a competitive edge.. Check Your Free Sample Performance Analysis

* Total H Index Rankings
Rankings
Ranking Based On Selection: 11
Chin Chung Tsai
          Metrics
H-Index
i10-Index
Citation Counts
130
401
58,793
science education
computers & education
educational technolog
* Total H Index Rankings
Rankings
Ranking Based On Selection: 12
Michael Wehmeyer
          Metrics
H-Index
i10-Index
Citation Counts
129
410
62,015
self-determination
special education
intellectual disability
positive psychology
* Total H Index Rankings
Rankings
Ranking Based On Selection: 13
Nima Rezaei
          Metrics
H-Index
i10-Index
Citation Counts
124
996
104,502
Immunology
Genetics
Infectious Diseases
Pediatric
* Total H Index Rankings
Rankings
Ranking Based On Selection: 14
Louise Burke
          Metrics
H-Index
i10-Index
Citation Counts
124
361
57,634
* Total H Index Rankings
Rankings
Ranking Based On Selection: 15
Barry Fraser
          Metrics
H-Index
i10-Index
Citation Counts
124
391
53,287
learning environments
educational evaluation
science educatio
* Total H Index Rankings
Rankings
Ranking Based On Selection: 16
Shuang Li
          Metrics
H-Index
i10-Index
Citation Counts
120
921
69,087
* Total H Index Rankings
Rankings
Ranking Based On Selection: 17
Wolff Michael Roth
          Metrics
H-Index
i10-Index
Citation Counts
120
566
53,494
Education
anthropology
sociology
linguistics
psycholog
* Total H Index Rankings
Rankings
Ranking Based On Selection: 18
Will Hopkins
          Metrics
H-Index
i10-Index
Citation Counts
119
332
61,367
* Total H Index Rankings
Rankings
Ranking Based On Selection: 19
Francisco B Ortega
          Metrics
H-Index
i10-Index
Citation Counts
118
474
71,193
* Total H Index Rankings
Rankings
Ranking Based On Selection: 20
Jim Cummins
          Metrics
H-Index
i10-Index
Citation Counts
118
312
94,890
* Total H Index Rankings
Rankings
Ranking Based On Selection: 21
Julio Cabero Almenara
          Metrics
H-Index
i10-Index
Citation Counts
117
526
52,696
* Total H Index Rankings
Rankings
Ranking Based On Selection: 22
Tony Onwuegbuzie
          Metrics
H-Index
i10-Index
Citation Counts
116
379
122,137
mixed methods
qualitative research
quantitative research
program evaluation
* Total H Index Rankings
Rankings
Ranking Based On Selection: 23
Paul A Kirschner
          Metrics
H-Index
i10-Index
Citation Counts
113
348
65,347
Instructional Design
Educational Psychology
Educational Technology
Computer Supported Collaborative Learning
* Total H Index Rankings
Rankings
Ranking Based On Selection: 24
Ross Arena
          Metrics
H-Index
i10-Index
Citation Counts
112
555
93,135
Exercise testing
Cardiac Rehab
Exercise
Cardiopulmonary Disease
Healthy Living Medicine. ..
* Total H Index Rankings
Rankings
Ranking Based On Selection: 25
Andrew Jones
          Metrics
H-Index
i10-Index
Citation Counts
112
325
44,254