Citation Rankings
Highly Cited Researchers

World Highly Cited Researchers Citation Rankings 2025

The Citation Rankings (Highly Cited Researchers) highlight the most cited and influential researchers across a vast range of scientific fields, covering 197 main and sub-disciplines, including the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings. This service, offered exclusively by AD Scientific Index, aims to provide a balanced perspective by excluding data from CERN and other statistical sources that disproportionately favor certain researchers, particularly in the social sciences and humanities. This unique approach addresses the advantages researchers with multi-author publications and CERN involvement hold over others. Furthermore, citation rankings help uncover rule violations and unethical practices within the research community. For more detailed citation analyses, explore the Scientists Last 6 Years Citation Index, Universities Total Citations Rankings 2025, and Universities Last 6 Years Citations Rankings 2025.

* Total Citation Counts Rankings
Ranking Based On Selection :1
United States
Richard E Mayer
Educational psychology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
233,741
89,971
0.385
* Total Citation Counts Rankings
Ranking Based On Selection :2
Australia
Herbert W Marsh
methodological/substantive synergy - self-concept - evaluation of teaching - peer review - multilevel structural equation models
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
193,917
66,028
0.340
* Total Citation Counts Rankings
Ranking Based On Selection :3
Norway
Ulf Ekelund
Physical Activity
Epidemiology
Public Health
Sport Science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
139,910
83,979
0.600
* Total Citation Counts Rankings
Ranking Based On Selection :4
Australia
Sheikh Mohammed Shariful Islam
mHealth
Global Public Health
Medical Informatics
Non Communicable Diseases
Digital Health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
133,330
126,759
0.951
* Total Citation Counts Rankings
Ranking Based On Selection :5
Netherlands
Marinus Van Ijzendoorn
psychology
psychiatry
education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
129,496
50,966
0.394
* Total Citation Counts Rankings
Ranking Based On Selection :6
United States
Lee S Shulman
teaching
teacher education
higher education
professions
Jewish education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
128,376
37,731
0.294
* Total Citation Counts Rankings
Ranking Based On Selection :7
United Kingdom
Tony Onwuegbuzie
mixed methods
qualitative research
quantitative research
program evaluation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
120,609
54,766
0.454
* Total Citation Counts Rankings
Ranking Based On Selection :8
United States
Robert C Pianta
education
developmental psychology
teacher-student relationships
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
112,549
45,771
0.407
* Total Citation Counts Rankings
Ranking Based On Selection :9
Macao
Keith Morrison
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
108,846
49,234
0.452
* Total Citation Counts Rankings
Ranking Based On Selection :10
United States
Greg J Duncan
Poverty
public policy
education
child development
income distribution
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
104,813
31,625
0.302
* Total Citation Counts Rankings
Ranking Based On Selection :11
United States
Simon Kasimili
Sports
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
100,692
19,176
0.190
* Total Citation Counts Rankings
Ranking Based On Selection :12
United States
Gloria Ladson Billings
multicultural education
culturally relevant pedagogy
critical race theory
teacher education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
100,039
46,447
0.464
* Total Citation Counts Rankings
Ranking Based On Selection :13
United Kingdom
Martyn Hammersley
social science
methodology
philosophy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
93,976
27,595
0.294
* Total Citation Counts Rankings
Ranking Based On Selection :14
Canada
Jim Cummins
Education
Language
Bilingualism
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
93,712
25,898
0.276
* Total Citation Counts Rankings
Ranking Based On Selection :15
Iran
Nima Rezaei
Immunology
Genetics
Infectious Diseases
Pediatrics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
91,523
74,778
0.817
* Total Citation Counts Rankings
Ranking Based On Selection :16
Finland
Yrjö Engeström
activity theory
expansive learning
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
88,627
26,961
0.304
* Total Citation Counts Rankings
Ranking Based On Selection :17
Türkiye
Şener Büyüköztürk
Scale Devalopment and Adaptation
Data Analysis
Research Methods
Monitoring and Evaluation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
87,679
50,638
0.578
* Total Citation Counts Rankings
Ranking Based On Selection :18
United States
Ross Arena
Exercise
Cardiopulmonary Disease
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
87,472
46,673
0.534
* Total Citation Counts Rankings
Ranking Based On Selection :19
United States
Qing Li
Game-Based Learning
Cyberbullying
Mathematics Education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
84,282
47,744
0.566
* Total Citation Counts Rankings
Ranking Based On Selection :20
United States
Charles Teddlie
Mixed Methods
School Effectiveness
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
82,262
30,058
0.365
* Total Citation Counts Rankings
Ranking Based On Selection :21
Türkiye
Selahattin Turan
Educational Policy
Educational Leadership
Educational Administration
Turkish Education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
82,194
50,353
0.613
* Total Citation Counts Rankings
Ranking Based On Selection :22
United States
Steve Graham
education
wriiting
learning disabilities
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
82,107
32,101
0.391
* Total Citation Counts Rankings
Ranking Based On Selection :23
Spain
Adsuar, JC
Ciencias del Deporte
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
78,539
62,932
0.801
* Total Citation Counts Rankings
Ranking Based On Selection :24
Hong Kong
Wong Ming Hung
Environmental Science
Environmental Toxicology
Environmental Restoration
Waste Recycling
Aquaculture
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
76,879
33,622
0.437
* Total Citation Counts Rankings
Ranking Based On Selection :25
United States
Jianjun Adam Wang
Educational Technology
Teacher Education
Special Education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
76,677
31,512
0.411
* Total Citation Counts Rankings
Rankings
572
United States
226
1
Ranking Based On Selection: 1
Richard E Mayer
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
233,741
89,971
0.385
* Total Citation Counts Rankings
Rankings
868
Australia
20
3
Ranking Based On Selection: 2
Herbert W Marsh
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
193,917
66,028
0.340
methodological/substantive synergy - self-concept - evaluation of teaching - peer review - multilevel structural equation models
* Total Citation Counts Rankings
Rankings
1,630
Norway
3
1
Ranking Based On Selection: 3
Ulf Ekelund
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
139,910
83,979
0.600
Physical Activity
Epidemiology
Public Health
Sport Science
* Total Citation Counts Rankings
Rankings
1,785
Australia
53
1
Ranking Based On Selection: 4
Sheikh Mohammed Shariful Islam
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
133,330
126,759
0.951
mHealth
Global Public Health
Medical Informatics
Non Communicable Diseases
Digital Health
* Total Citation Counts Rankings
Rankings
1,891
Netherlands
43
5
Ranking Based On Selection: 5
Marinus Van Ijzendoorn
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
129,496
50,966
0.394
* Total Citation Counts Rankings
Rankings
1,925
United States
880
46
Ranking Based On Selection: 6
Lee S Shulman
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
128,376
37,731
0.294
teaching
teacher education
higher education
professions
Jewish education
* Total Citation Counts Rankings
Rankings
2,151
United Kingdom
175
12
Ranking Based On Selection: 7
Tony Onwuegbuzie
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
120,609
54,766
0.454
mixed methods
qualitative research
quantitative research
program evaluation
* Total Citation Counts Rankings
Rankings
2,460
United States
1,168
3
Ranking Based On Selection: 8
Robert C Pianta
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
112,549
45,771
0.407
education
developmental psychology
teacher-student relationships
* Total Citation Counts Rankings
Rankings
2,640
Macao
1
1
Ranking Based On Selection: 9
Keith Morrison
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
108,846
49,234
0.452
* Total Citation Counts Rankings
Rankings
2,853
United States
1,360
8
Ranking Based On Selection: 10
Greg J Duncan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
104,813
31,625
0.302
Poverty
public policy
education
child development
income distribution
* Total Citation Counts Rankings
Rankings
3,065
United States
1,471
30
Ranking Based On Selection: 11
Simon Kasimili
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
100,692
19,176
0.190
* Total Citation Counts Rankings
Rankings
3,106
United States
1,492
13
Ranking Based On Selection: 12
Gloria Ladson Billings
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
100,039
46,447
0.464
multicultural education
culturally relevant pedagogy
critical race theory
teacher education
* Total Citation Counts Rankings
Rankings
3,532
United Kingdom
291
2
Ranking Based On Selection: 13
Martyn Hammersley
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
93,976
27,595
0.294
* Total Citation Counts Rankings
Rankings
3,547
Canada
139
24
Ranking Based On Selection: 14
Jim Cummins
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
93,712
25,898
0.276
* Total Citation Counts Rankings
Rankings
3,686
Iran
27
9
Ranking Based On Selection: 15
Nima Rezaei
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
91,523
74,778
0.817
Immunology
Genetics
Infectious Diseases
Pediatrics
* Total Citation Counts Rankings
Rankings
3,917
Finland
20
10
Ranking Based On Selection: 16
Yrjö Engeström
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
88,627
26,961
0.304
* Total Citation Counts Rankings
Rankings
3,983
Türkiye
33
1
Ranking Based On Selection: 17
Şener Büyüköztürk
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
87,679
50,638
0.578
Scale Devalopment and Adaptation
Data Analysis
Research Methods
Monitoring and Evaluation
* Total Citation Counts Rankings
Rankings
4,002
United States
1,904
4
Ranking Based On Selection: 18
Ross Arena
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
87,472
46,673
0.534
* Total Citation Counts Rankings
Rankings
4,233
United States
2,011
1
Ranking Based On Selection: 19
Qing Li
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
84,282
47,744
0.566
Game-Based Learning
Cyberbullying
Mathematics Education
* Total Citation Counts Rankings
Rankings
4,407
United States
2,103
3
Ranking Based On Selection: 20
Charles Teddlie
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
82,262
30,058
0.365
* Total Citation Counts Rankings
Rankings
4,412
Türkiye
35
1
Ranking Based On Selection: 21
Selahattin Turan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
82,194
50,353
0.613
Educational Policy
Educational Leadership
Educational Administration
Turkish Education
* Total Citation Counts Rankings
Rankings
4,421
United States
2,108
16
Ranking Based On Selection: 22
Steve Graham
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
82,107
32,101
0.391
* Total Citation Counts Rankings
Rankings
4,811
Spain
97
2
Ranking Based On Selection: 23
Adsuar, JC
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
78,539
62,932
0.801
* Total Citation Counts Rankings
Rankings
5,004
Hong Kong
28
1
Ranking Based On Selection: 24
Wong Ming Hung
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
76,879
33,622
0.437
Environmental Science
Environmental Toxicology
Environmental Restoration
Waste Recycling
Aquaculture
* Total Citation Counts Rankings
Rankings
5,032
United States
2,388
1
Ranking Based On Selection: 25
Jianjun Adam Wang
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
76,677
31,512
0.411
Educational Technology
Teacher Education
Special Education