University, Subject, Country, Region, World

Abt Associates Inc. 29 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 22, 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 (1.121.250) 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
EC Hedberg|Eric C Hedberg, Eric Christopher Hedberg
Multi-level models
Evaluation research design
Statistics
Statistical powe
Metrics
H-Index
i10 Index
Citation Counts
30
43
3,963
* Total H IndexRankings
Ranking Based On Selection: 3
Michael Lopez
child development
dual language learners
cultural and linguistic diversit
Metrics
H-Index
i10 Index
Citation Counts
29
43
3,936
* Total H IndexRankings
Ranking Based On Selection: 4
Jefrefrey Morris
Aquatic toxicology
aquatic biology
environmental remediatio
Metrics
H-Index
i10 Index
Citation Counts
24
45
2,664
* Total H IndexRankings
Ranking Based On Selection: 5
Jason Brinkley
Biostatistics
Causal Inference
Health Disparities
Machine Learning
Psychometric
Metrics
H-Index
i10 Index
Citation Counts
23
30
1,591
* Total H IndexRankings
Ranking Based On Selection: 7
Laura R. Peck
public policy
program evaluation
social welfare policy
poverty studie
Metrics
H-Index
i10 Index
Citation Counts
22
44
2,016
* Total H IndexRankings
Ranking Based On Selection: 9
Douglas C. McDonald
opioids
drugs
behavioral health
criminal justic
Metrics
H-Index
i10 Index
Citation Counts
20
32
1,868
* Total H IndexRankings
Ranking Based On Selection: 10
Sarah J. Shoemaker-Hunt|Sarah J. Shoemaker
Health services research
implementation scientist
opioid prescribing
primary car
Metrics
H-Index
i10 Index
Citation Counts
18
24
2,868

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* Total H IndexRankings
Ranking Based On Selection: 11
Nida Corry
Psychology
Trauma
Mental Healt
Metrics
H-Index
i10 Index
Citation Counts
18
19
1,846
* Total H IndexRankings
Ranking Based On Selection: 14
Andrew Clarkwest
Labor and Educatio
Metrics
H-Index
i10 Index
Citation Counts
14
14
1,156
* Total H IndexRankings
Ranking Based On Selection: 15
Carolyn Layzer
minority language learners
adolescent risk prevention
early childhood developement & educatio
Metrics
H-Index
i10 Index
Citation Counts
13
20
869
* Total H IndexRankings
Ranking Based On Selection: 16
Tamara Wilder Linkow
education
equity
college access
program evaluatio
Metrics
H-Index
i10 Index
Citation Counts
13
18
2,818
* Total H IndexRankings
Ranking Based On Selection: 17
Molly Mclaughlin
natural resource damage assessment
contaminant fate and transpor
Metrics
H-Index
i10 Index
Citation Counts
12
12
674
* Total H IndexRankings
Ranking Based On Selection: 18
Sean McClellan
Implementation science
organizational theory
healthcare organizations
mental health polic
Metrics
H-Index
i10 Index
Citation Counts
12
12
868
* Total H IndexRankings
Ranking Based On Selection: 20
Michael Plotzke
Health economics
hospice
Home health
Medicar
Metrics
H-Index
i10 Index
Citation Counts
11
11
691
* Total H IndexRankings
Ranking Based On Selection: 21
Alexis St. Juliana
climate change
adaptation
mitigation
public healt
Metrics
H-Index
i10 Index
Citation Counts
8
8
1,121
* Total H IndexRankings
Ranking Based On Selection: 22
Jenna T. Sirkin
community health centers
health IT
health care reform
accountable care
sustainable international developmen
Metrics
H-Index
i10 Index
Citation Counts
8
8
655
* Total H IndexRankings
Ranking Based On Selection: 24
Daniel Litwok
Economics
Public Policy
Employment
Education
Criminal Justic
Metrics
H-Index
i10 Index
Citation Counts
7
6
147
* Total H IndexRankings
Ranking Based On Selection: 25
Jonathan Cali
health systems
neglected tropical diseases
health financing
behavioral economic
Metrics
H-Index
i10 Index
Citation Counts
6
4
116
* Total H Index Rankings
Rankings
Ranking Based On Selection: 1
EC Hedberg|Eric C Hedberg, Eric Christopher Hedberg
          Metrics
H-Index
i10-Index
Citation Counts
30
43
3,963
Multi-level models
Evaluation research design
Statistics
Statistical powe
* Total H Index Rankings
Rankings
Ranking Based On Selection: 2
Lauren Olsho
          Metrics
H-Index
i10-Index
Citation Counts
29
39
4,681
* Total H Index Rankings
Rankings
Ranking Based On Selection: 3
Michael Lopez
          Metrics
H-Index
i10-Index
Citation Counts
29
43
3,936
child development
dual language learners
cultural and linguistic diversit
* Total H Index Rankings
Rankings
Ranking Based On Selection: 4
Jefrefrey Morris
          Metrics
H-Index
i10-Index
Citation Counts
24
45
2,664
Aquatic toxicology
aquatic biology
environmental remediatio
* Total H Index Rankings
Rankings
Ranking Based On Selection: 5
Jason Brinkley
          Metrics
H-Index
i10-Index
Citation Counts
23
30
1,591
Biostatistics
Causal Inference
Health Disparities
Machine Learning
Psychometric
* Total H Index Rankings
Rankings
Ranking Based On Selection: 6
Laura C. Thornton
          Metrics
H-Index
i10-Index
Citation Counts
22
34
3,397
* Total H Index Rankings
Rankings
Ranking Based On Selection: 7
Laura R. Peck
          Metrics
H-Index
i10-Index
Citation Counts
22
44
2,016
public policy
program evaluation
social welfare policy
poverty studie
* Total H Index Rankings
Rankings
Ranking Based On Selection: 8
Tamara Daley
          Metrics
H-Index
i10-Index
Citation Counts
21
24
2,670
* Total H Index Rankings
Rankings
Ranking Based On Selection: 9
Douglas C. McDonald
          Metrics
H-Index
i10-Index
Citation Counts
20
32
1,868
opioids
drugs
behavioral health
criminal justic
* Total H Index Rankings
Rankings
Ranking Based On Selection: 10
Sarah J. Shoemaker-Hunt|Sarah J. Shoemaker
          Metrics
H-Index
i10-Index
Citation Counts
18
24
2,868
Health services research
implementation scientist
opioid prescribing
primary car

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
Nida Corry
          Metrics
H-Index
i10-Index
Citation Counts
18
19
1,846
* Total H Index Rankings
Rankings
Ranking Based On Selection: 12
R Fryatt
          Metrics
H-Index
i10-Index
Citation Counts
16
20
1,040
* Total H Index Rankings
Rankings
Ranking Based On Selection: 13
Ellen Childs
          Metrics
H-Index
i10-Index
Citation Counts
15
24
1,721
* Total H Index Rankings
Rankings
Ranking Based On Selection: 14
Andrew Clarkwest
          Metrics
H-Index
i10-Index
Citation Counts
14
14
1,156
* Total H Index Rankings
Rankings
Ranking Based On Selection: 15
Carolyn Layzer
          Metrics
H-Index
i10-Index
Citation Counts
13
20
869
minority language learners
adolescent risk prevention
early childhood developement & educatio
* Total H Index Rankings
Rankings
Ranking Based On Selection: 16
Tamara Wilder Linkow
          Metrics
H-Index
i10-Index
Citation Counts
13
18
2,818
education
equity
college access
program evaluatio
* Total H Index Rankings
Rankings
Ranking Based On Selection: 17
Molly Mclaughlin
          Metrics
H-Index
i10-Index
Citation Counts
12
12
674
natural resource damage assessment
contaminant fate and transpor
* Total H Index Rankings
Rankings
Ranking Based On Selection: 18
Sean McClellan
          Metrics
H-Index
i10-Index
Citation Counts
12
12
868
Implementation science
organizational theory
healthcare organizations
mental health polic
* Total H Index Rankings
Rankings
Ranking Based On Selection: 19
Francis Okello
          Metrics
H-Index
i10-Index
Citation Counts
12
14
544
* Total H Index Rankings
Rankings
Ranking Based On Selection: 20
Michael Plotzke
          Metrics
H-Index
i10-Index
Citation Counts
11
11
691
Health economics
hospice
Home health
Medicar
* Total H Index Rankings
Rankings
Ranking Based On Selection: 21
Alexis St. Juliana
          Metrics
H-Index
i10-Index
Citation Counts
8
8
1,121
* Total H Index Rankings
Rankings
Ranking Based On Selection: 22
Jenna T. Sirkin
          Metrics
H-Index
i10-Index
Citation Counts
8
8
655
community health centers
health IT
health care reform
accountable care
sustainable international developmen
* Total H Index Rankings
Rankings
Ranking Based On Selection: 23
Alicia C Sparks
          Metrics
H-Index
i10-Index
Citation Counts
7
7
325
* Total H Index Rankings
Rankings
Ranking Based On Selection: 24
Daniel Litwok
          Metrics
H-Index
i10-Index
Citation Counts
7
6
147
Economics
Public Policy
Employment
Education
Criminal Justic
* Total H Index Rankings
Rankings
Ranking Based On Selection: 25
Jonathan Cali
          Metrics
H-Index
i10-Index
Citation Counts
6
4
116
health systems
neglected tropical diseases
health financing
behavioral economic