Citation Rankings (Highly Cited Researchers) 2024 and list of influential and most cited researchers in Agriculture and Forestry, Art, Design and Architecture, Business and Management, Economics and Econometrics, Education, Engineering and Technology, History, Philosophy, Theology, Law, Medicine and Health Sciences, Natural Sciences and Social Sciences and their 256 sub-branches is a unique service offered only by “AD Scientific Index”. You can see the most cited and influential researchers in the country and region. See also for more specific citation analyses: "last 6 years citation index" Universities Rankings 2024 (Sort by: Total Citations) and Universities Rankings 2024 (Sort by : Last 6 Years Citations)
* Total Citation Counts Rankings
World Rank
1,888
Country Rank
43
Institution Rank : 5
![](https://cdn.adscientificindex.com/logos/7358.png)
![Netherlands](/flags/nl.png)
![Marinus Van Ijzendoorn](https://cdn.adscientificindex.com/pictures/b3/4703112.jpg)
psychology
psychiatry
education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
126,780
48,674
0.384
* Total Citation Counts Rankings
World Rank
2,162
Country Rank
175
Institution Rank : 12
![](https://cdn.adscientificindex.com/logos/10902.jpg)
![United Kingdom](/flags/gb.png)
![Tony Onwuegbuzie](/user/assets/images/profile/no-profile-photo.png)
mixed methods
qualitative research
quantitative research
program evaluation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
117,372
52,114
0.444
* Total Citation Counts Rankings
World Rank
3,501
Country Rank
283
Institution Rank : 2
![](https://cdn.adscientificindex.com/logos/6596.jpg)
![United Kingdom](/flags/gb.png)
![Martyn Hammersley](https://cdn.adscientificindex.com/pictures/3e/1361675.jpg)
social science
methodology
philosophy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
92,341
26,224
0.284
* Total Citation Counts Rankings
World Rank
3,864
Country Rank
16
Institution Rank : 8
![](https://cdn.adscientificindex.com/logos/11053.png)
![Finland](/flags/fi.png)
![Yrjö Engeström](https://cdn.adscientificindex.com/pictures/4b/913899.jpg)
activity theory
expansive learning
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
87,217
25,853
0.296
* Total Citation Counts Rankings
World Rank
4,053
Country Rank
34
Institution Rank : 1
![](https://cdn.adscientificindex.com/logos/3219.png)
![Türkiye](/flags/tr.png)
![Şener Büyüköztürk](https://cdn.adscientificindex.com/pictures/76/86380.jpg)
Scale Devalopment and Adaptation
Data Analysis
Research Methods
Monitoring and Evaluation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
85,040
48,355
0.569
* Total Citation Counts Rankings
World Rank
4,548
Country Rank
36
Institution Rank : 1
![](https://cdn.adscientificindex.com/logos/1118.png)
![Türkiye](/flags/tr.png)
![Selahattin Turan](https://cdn.adscientificindex.com/pictures/4d/85137.jpg)
Educational Policy
Educational Leadership
Educational Administration
Turkish Education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
79,296
47,634
0.601
* Total Citation Counts Rankings
World Rank
5,696
Country Rank
38
Institution Rank : 3
![](https://cdn.adscientificindex.com/logos/5715.jpg)
![Türkiye](/flags/tr.png)
![Ali Yıldırım](https://cdn.adscientificindex.com/pictures/fb/60151.jpg)
curriculum
teaching
teacher education
social studies
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
69,484
40,639
0.585
* Total Citation Counts Rankings
World Rank
5,759
Country Rank
115
Institution Rank : 6
![](https://cdn.adscientificindex.com/logos/5382.png)
![Netherlands](/flags/nl.png)
![Cees Van Der Vleuten](https://cdn.adscientificindex.com/pictures/eb/1755443.jpg)
Medical Education - Assessment of Professional Competence
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
68,954
27,458
0.398
* Total Citation Counts Rankings
World Rank
6,028
Country Rank
509
Institution Rank : 32
![](https://cdn.adscientificindex.com/logos/4926.png)
![United Kingdom](/flags/gb.png)
![Paul Black](/user/assets/images/profile/no-profile-photo.png)
Assessment in Education
Science curriculum
Crystal structures
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
67,042
20,908
0.312
* Total Citation Counts Rankings
World Rank
6,645
Country Rank
39
Institution Rank : 1
![](https://cdn.adscientificindex.com/logos/718.png)
![Türkiye](/flags/tr.png)
![Hasan Şimşek](https://cdn.adscientificindex.com/pictures/f2/210267.jpg)
education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
63,119
36,849
0.584
* Total Citation Counts Rankings
World Rank
6,854
Country Rank
159
Institution Rank : 1
![](https://cdn.adscientificindex.com/logos/6588.jpg)
![Netherlands](/flags/nl.png)
![Paul A Kirschner](https://cdn.adscientificindex.com/pictures/4b/1853414.jpg)
Instructional Design
Educational Psychology
Educational Technology
Computer Supported Collaborative Learning
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
62,024
28,571
0.461
* Total Citation Counts Rankings
World Rank
9,184
Country Rank
805
Institution Rank : 7
![](https://cdn.adscientificindex.com/logos/11255.jpg)
![United Kingdom](/flags/gb.png)
![Christopher Day](/user/assets/images/profile/no-profile-photo.png)
Education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
51,744
21,196
0.410
* Total Citation Counts Rankings
World Rank
9,550
Country Rank
170
Institution Rank : 2
![](https://cdn.adscientificindex.com/logos/9407.jpg)
![Spain](/flags/es.png)
![Julio Cabero Almenara](https://cdn.adscientificindex.com/pictures/8e/4365851.jpg)
Educación
Tecnología Educativa
TIC
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
50,450
24,804
0.492
* Total Citation Counts Rankings
World Rank
9,652
Country Rank
100
Institution Rank : 11
![](https://cdn.adscientificindex.com/logos/11028.jpg)
![Sweden](/flags/se.png)
![Roger Säljö](https://cdn.adscientificindex.com/pictures/34/1124003.jpg)
Learning
culture and mind
tool mediated action
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
50,115
13,531
0.270
* Total Citation Counts Rankings
World Rank
10,005
Country Rank
864
Institution Rank : 10
![](https://cdn.adscientificindex.com/logos/2097.jpg)
![United Kingdom](/flags/gb.png)
![Stephen Gorard](https://cdn.adscientificindex.com/pictures/13/4345604.jpg)
School improvement
school effectiveness
educational equality
impact of poverty
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
48,986
17,054
0.348
* Total Citation Counts Rankings
World Rank
11,669
Country Rank
196
Institution Rank : 20
![](https://cdn.adscientificindex.com/logos/10388.jpg)
![Spain](/flags/es.png)
![Rafael Bisquerra](/user/assets/images/profile/no-profile-photo.png)
educació emocional
competències emocionals
orientació psicopedagògica
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
44,386
21,810
0.491
* Total Citation Counts Rankings
World Rank
12,267
Country Rank
48
Institution Rank : 10
![](https://cdn.adscientificindex.com/logos/10861.jpg)
![Norway](/flags/no.png)
![Kari Smith](/user/assets/images/profile/no-profile-photo.png)
assessment
teacher education
professional development
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
43,044
23,352
0.543
* Total Citation Counts Rankings
World Rank
12,687
Country Rank
1,112
Institution Rank : 153
![](https://cdn.adscientificindex.com/logos/11272.jpg)
![United Kingdom](/flags/gb.png)
![Pamela Sammons](https://cdn.adscientificindex.com/pictures/01/1075252.jpg)
education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
42,165
15,137
0.359
* Total Citation Counts Rankings
World Rank
14,380
Country Rank
1,260
Institution Rank : 1
![](https://cdn.adscientificindex.com/logos/7338.png)
![United Kingdom](/flags/gb.png)
![David J Hargreaves](https://cdn.adscientificindex.com/pictures/71/1327773.jpg)
music education
music psychology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39,025
11,604
0.297
* Total Citation Counts Rankings
World Rank
15,766
Country Rank
1,369
Institution Rank : 117
![](https://cdn.adscientificindex.com/logos/10902.jpg)
![United Kingdom](/flags/gb.png)
![Diane Reay](https://cdn.adscientificindex.com/pictures/ac/1361597.jpg)
Education
Sociology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
36,822
13,175
0.358
* Total Citation Counts Rankings
World Rank
18,939
Country Rank
42
Institution Rank : 15
![](https://cdn.adscientificindex.com/logos/9785.png)
![Portugal](/flags/pt.png)
![João Pedro Da Ponte](https://cdn.adscientificindex.com/pictures/42/4368626.jpg)
Didática da Matemática
Educação Matemática
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
32,701
10,706
0.327
* Total Citation Counts Rankings
World Rank
20,846
Country Rank
929
Institution Rank : 10
![](https://cdn.adscientificindex.com/logos/1571.png)
![Germany](/flags/de.png)
![Olaf Köller](https://cdn.adscientificindex.com/pictures/91/1756618.jpg)
Education
Psychology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,827
11,634
0.377
* Total Citation Counts Rankings
World Rank
23,311
Country Rank
603
Institution Rank : 68
![](https://cdn.adscientificindex.com/logos/24366.png)
![Netherlands](/flags/nl.png)
![N Verloop](/user/assets/images/profile/no-profile-photo.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,690
10,079
0.351
* Total Citation Counts Rankings
World Rank
23,624
Country Rank
417
Institution Rank : 12
![](https://cdn.adscientificindex.com/logos/9407.jpg)
![Spain](/flags/es.png)
![Carlos Marcelo](https://cdn.adscientificindex.com/pictures/8d/4365858.jpg)
Formación profesorado
Desarrollo profesional
E-learning
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,451
10,357
0.364
* Total Citation Counts Rankings
World Rank
25,351
Country Rank
452
Institution Rank : 10
![](https://cdn.adscientificindex.com/logos/9277.png)
![Spain](/flags/es.png)
![Raul Fernandez-Cobos](https://cdn.adscientificindex.com/pictures/9f/4305502.jpg)
Didactics of Mathematics
Special Education
Cosmology
CMB
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,133
22,583
0.832
Marinus Van Ijzendoorn
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
126,780
48,674
0.384
Tony Onwuegbuzie
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
117,372
52,114
0.444
mixed methods
qualitative research
quantitative research
program evaluation
Martyn Hammersley
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
92,341
26,224
0.284
social science
methodology
philosophy
Yrjö Engeström
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
87,217
25,853
0.296
Şener Büyüköztürk
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
85,040
48,355
0.569
Scale Devalopment and Adaptation
Data Analysis
Research Methods
Monitoring and Evaluation
Selahattin Turan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
79,296
47,634
0.601
Educational Policy
Educational Leadership
Educational Administration
Turkish Education
Ali Yıldırım
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
69,484
40,639
0.585
curriculum
teaching
teacher education
social studies
Cees Van Der Vleuten
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
68,954
27,458
0.398
Medical Education - Assessment of Professional Competence
Paul Black
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
67,042
20,908
0.312
Assessment in Education
Science curriculum
Crystal structures
Hasan Şimşek
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
63,119
36,849
0.584
Paul A Kirschner
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
62,024
28,571
0.461
Instructional Design
Educational Psychology
Educational Technology
Computer Supported Collaborative Learning
Christopher Day
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
51,744
21,196
0.410
Julio Cabero Almenara
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
50,450
24,804
0.492
Roger Säljö
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
50,115
13,531
0.270
Learning
culture and mind
tool mediated action
Stephen Gorard
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
48,986
17,054
0.348
School improvement
school effectiveness
educational equality
impact of poverty
Rafael Bisquerra
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
44,386
21,810
0.491
educació emocional
competències emocionals
orientació psicopedagògica
Kari Smith
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
43,044
23,352
0.543
assessment
teacher education
professional development
Pamela Sammons
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
42,165
15,137
0.359
David J Hargreaves
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39,025
11,604
0.297
Diane Reay
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
36,822
13,175
0.358
João Pedro Da Ponte
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
32,701
10,706
0.327
Didática da Matemática
Educação Matemática
Olaf Köller
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,827
11,634
0.377
N Verloop
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,690
10,079
0.351
Carlos Marcelo
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,451
10,357
0.364
Formación profesorado
Desarrollo profesional
E-learning
Raul Fernandez-Cobos
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,133
22,583
0.832
Didactics of Mathematics
Special Education
Cosmology
CMB