World Scientist and University Rankings 2025

World Education 60.646 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 May 14, 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 (1.121.204) 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 relationship
Metrics
H-Index
i10 Index
Citation Counts
155
389
116,026
* Total H IndexRankings
Ranking Based On Selection: 6
Greg J Duncan
Poverty
public policy
education
child development
income distributio
Metrics
H-Index
i10 Index
Citation Counts
152
444
107,316
* Total H IndexRankings
Ranking Based On Selection: 7
Ulf Ekelund
Physical Activity
Epidemiology
Public Health
Sport Scienc
Metrics
H-Index
i10 Index
Citation Counts
151
506
153,667
* 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 Competenc
Metrics
H-Index
i10 Index
Citation Counts
140
694
73,015
* Total H IndexRankings
Ranking Based On Selection: 10
Douglas Fuchs
educational psychology
special education
educational polic
Metrics
H-Index
i10 Index
Citation Counts
136
358
66,847

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 psycholog
Metrics
H-Index
i10 Index
Citation Counts
130
413
62,879
* 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
Wolff Michael Roth
Education
anthropology
sociology
linguistics
psycholog
Metrics
H-Index
i10 Index
Citation Counts
122
568
53,843
* Total H IndexRankings
Ranking Based On Selection: 17
Shuang Li
educational studie
Metrics
H-Index
i10 Index
Citation Counts
120
921
69,087
* Total H IndexRankings
Ranking Based On Selection: 18
Francisco B Ortega
physical activity
exercise
health
cognition
brai
Metrics
H-Index
i10 Index
Citation Counts
119
480
73,473
* Total H IndexRankings
Ranking Based On Selection: 19
Jim Cummins
Education
Language
Bilingualis
Metrics
H-Index
i10 Index
Citation Counts
119
312
95,692
* Total H IndexRankings
Ranking Based On Selection: 20
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: 21
Julio Cabero Almenara
Educación
Tecnología Educativa
TI
Metrics
H-Index
i10 Index
Citation Counts
117
537
54,131
* Total H IndexRankings
Ranking Based On Selection: 22
Tony Onwuegbuzie
mixed methods
qualitative research
quantitative research
program evaluatio
Metrics
H-Index
i10 Index
Citation Counts
116
383
124,084
* Total H IndexRankings
Ranking Based On Selection: 23
Paul A Kirschner
Instructional Design
Educational Psychology
Educational Technology
Computer Supported Collaborative Learnin
Metrics
H-Index
i10 Index
Citation Counts
114
353
66,770
* 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
113
565
95,009
* Total H IndexRankings
Ranking Based On Selection: 25
Andrew Jones
exercise
physiology
nitrate
endurance
fatigu
Metrics
H-Index
i10 Index
Citation Counts
113
327
45,015
* 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
190
578
247,904
* 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
155
389
116,026
education
developmental psychology
teacher-student relationship
* Total H Index Rankings
Rankings
Ranking Based On Selection: 6
Greg J Duncan
          Metrics
H-Index
i10-Index
Citation Counts
152
444
107,316
Poverty
public policy
education
child development
income distributio
* Total H Index Rankings
Rankings
Ranking Based On Selection: 7
Ulf Ekelund
          Metrics
H-Index
i10-Index
Citation Counts
151
506
153,667
Physical Activity
Epidemiology
Public Health
Sport Scienc
* 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
694
73,015
Medical Education - Assessment of Professional Competenc
* Total H Index Rankings
Rankings
Ranking Based On Selection: 10
Douglas Fuchs
          Metrics
H-Index
i10-Index
Citation Counts
136
358
66,847
educational psychology
special education
educational polic

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
130
413
62,879
self-determination
special education
intellectual disability
positive psycholog
* 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
364
58,775
* 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
Wolff Michael Roth
          Metrics
H-Index
i10-Index
Citation Counts
122
568
53,843
Education
anthropology
sociology
linguistics
psycholog
* Total H Index Rankings
Rankings
Ranking Based On Selection: 17
Shuang Li
          Metrics
H-Index
i10-Index
Citation Counts
120
921
69,087
* Total H Index Rankings
Rankings
Ranking Based On Selection: 18
Francisco B Ortega
          Metrics
H-Index
i10-Index
Citation Counts
119
480
73,473
* Total H Index Rankings
Rankings
Ranking Based On Selection: 19
Jim Cummins
          Metrics
H-Index
i10-Index
Citation Counts
119
312
95,692
* Total H Index Rankings
Rankings
Ranking Based On Selection: 20
Will Hopkins
          Metrics
H-Index
i10-Index
Citation Counts
119
332
61,367
* Total H Index Rankings
Rankings
Ranking Based On Selection: 21
Julio Cabero Almenara
          Metrics
H-Index
i10-Index
Citation Counts
117
537
54,131
* Total H Index Rankings
Rankings
Ranking Based On Selection: 22
Tony Onwuegbuzie
          Metrics
H-Index
i10-Index
Citation Counts
116
383
124,084
mixed methods
qualitative research
quantitative research
program evaluatio
* Total H Index Rankings
Rankings
Ranking Based On Selection: 23
Paul A Kirschner
          Metrics
H-Index
i10-Index
Citation Counts
114
353
66,770
Instructional Design
Educational Psychology
Educational Technology
Computer Supported Collaborative Learnin
* Total H Index Rankings
Rankings
Ranking Based On Selection: 24
Ross Arena
          Metrics
H-Index
i10-Index
Citation Counts
113
565
95,009
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
113
327
45,015