World's Best Scientists 2026 revealed!

D-Index & Metrics

Social Sciences and Humanities

D-Index
56
Citations
17031
World Ranking
1858
National Ranking
889

Gregory R. Hancock publication distribution in Social Sciences and Humanities in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Social Sciences and Humanities in 2026. The highlighted bar marks where Gregory R. Hancock sits on this spectrum.

44–53 publications: 28 scientists 54–63 publications: 61 scientists 64–73 publications: 161 scientists 74–83 publications: 225 scientists 84–93 publications: 301 scientists 94–103 publications: 390 scientists 104–113 publications: 406 scientists 114–123 publications: 474 scientists 124–133 publications: 453 scientists 134–143 publications: 434 scientists 144–153 publications: 407 scientists 154–163 publications: 411 scientists 164–173 publications: 391 scientists 174–183 publications: 313 scientists 184–193 publications: 319 scientists 194–203 publications: 304 scientists 204–213 publications: 285 scientists 214–223 publications: 246 scientists 224–233 publications: 213 scientists 234–243 publications: 170 scientists 244–253 publications: 167 scientists 254–263 publications: 162 scientists 264–273 publications: 138 scientists 274–283 publications: 138 scientists 284–293 publications: 113 scientists 294–303 publications: 106 scientists 304–313 publications: 95 scientists 314–323 publications: 101 scientists 324–333 publications: 81 scientists 334–343 publications: 69 scientists 344–353 publications: 56 scientists 354–363 publications: 36 scientists 364–373 publications: 42 scientists 374–383 publications: 41 scientists 384–393 publications: 44 scientists 394–403 publications: 27 scientists 404–413 publications: 30 scientists 414–423 publications: 20 scientists 424–433 publications: 29 scientists 434–443 publications: 29 scientists 444–453 publications: 25 scientists 454–463 publications: 19 scientists 464–473 publications: 21 scientists 474–483 publications: 11 scientists 484–493 publications: 17 scientists 494–503 publications: 7 scientists 504–513 publications: 6 scientists 514–523 publications: 12 scientists 524–533 publications: 10 scientists 534–543 publications: 7 scientists 544–553 publications: 6 scientists 554–563 publications: 12 scientists 564–569 publications: 8 scientists 570+ publications: 100 scientists
44 publications 570+

This scientist: 185 publications — 58th percentile

58% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 570 publications or more.

Gregory R. Hancock D-index placement in Social Sciences and Humanities in 2026

The chart shows the D-index (discipline H-index) distribution of Social Sciences and Humanities scientists ranked by Research.com in 2026. The highlighted bar marks where Gregory R. Hancock sits on this spectrum.

30 D-Index: 177 scientists 31 D-Index: 210 scientists 32 D-Index: 222 scientists 33 D-Index: 188 scientists 34 D-Index: 181 scientists 35 D-Index: 243 scientists 36 D-Index: 261 scientists 37 D-Index: 272 scientists 38 D-Index: 278 scientists 39 D-Index: 300 scientists 40 D-Index: 297 scientists 41 D-Index: 308 scientists 42 D-Index: 313 scientists 43 D-Index: 300 scientists 44 D-Index: 269 scientists 45 D-Index: 260 scientists 46 D-Index: 228 scientists 47 D-Index: 251 scientists 48 D-Index: 203 scientists 49 D-Index: 186 scientists 50 D-Index: 187 scientists 51 D-Index: 166 scientists 52 D-Index: 138 scientists 53 D-Index: 141 scientists 54 D-Index: 131 scientists 55 D-Index: 137 scientists 56 D-Index: 109 scientists 57 D-Index: 129 scientists 58 D-Index: 95 scientists 59 D-Index: 105 scientists 60 D-Index: 106 scientists 61 D-Index: 86 scientists 62 D-Index: 94 scientists 63 D-Index: 77 scientists 64 D-Index: 79 scientists 65 D-Index: 59 scientists 66 D-Index: 68 scientists 67 D-Index: 51 scientists 68 D-Index: 49 scientists 69 D-Index: 40 scientists 70 D-Index: 43 scientists 71 D-Index: 40 scientists 72 D-Index: 50 scientists 73 D-Index: 46 scientists 74 D-Index: 43 scientists 75 D-Index: 45 scientists 76 D-Index: 45 scientists 77 D-Index: 30 scientists 78 D-Index: 25 scientists 79 D-Index: 31 scientists 80 D-Index: 29 scientists 81 D-Index: 18 scientists 82 D-Index: 21 scientists 83 D-Index: 26 scientists 84 D-Index: 15 scientists 85 D-Index: 15 scientists 86 D-Index: 19 scientists 87 D-Index: 19 scientists 88 D-Index: 12 scientists 89 D-Index: 7 scientists 90 D-Index: 19 scientists 91 D-Index: 20 scientists 92 D-Index: 13 scientists 93 D-Index: 9 scientists 94 D-Index: 13 scientists 95 D-Index: 8 scientists 96 D-Index: 7 scientists 97 D-Index: 6 scientists 98 D-Index: 6 scientists 99 D-Index: 6 scientists 100+ D-Index: 97 scientists
30 D-Index 100+

This scientist: 56 D-Index — 77th percentile

77% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 100 D-Index or more.

Research.com Recognitions

  • 2015 - Fellow of the American Psychological Association (APA)
  • 2010 - Fellow of the American Educational Research Association

Overview

Gregory R. Hancock is affiliated with the University of Maryland, College Park in the United States. The primary field of research is Psychology, with a focus on subfields including Developmental and Educational Psychology, Artificial Intelligence, Clinical Psychology, Statistics and Probability, and Public Health, Environmental and Occupational Health.

Their research covers a range of topics such as:

  • Maternal Mental Health During Pregnancy and Postpartum
  • Child and Adolescent Psychosocial and Emotional Development
  • Cognitive and Developmental Aspects of Mathematical Skills
  • Natural Language Processing Techniques
  • Discourse Analysis in Language Studies
  • Second Language Acquisition and Learning
  • Mathematics Education and Teaching Techniques

Among the recent publications authored or co-authored by Gregory R. Hancock are:

  • "The mental health implications of COVID-19 for adolescents: Follow-up of a four-wave longitudinal study during the pandemic." (2021), American Psychologist
  • "A Closed-Form Alternative for Estimating ω Reliability under Unidimensionality" (2020), Measurement Interdisciplinary Research and Perspectives
  • "Beyond the Simple View of Reading: The Role of Executive Functions in Emergent Bilinguals' and English Monolinguals' Reading Comprehension" (2021), Reading Research Quarterly
  • "The Challenge of Modeling Co-Developmental Processes over Time" (2021), Child Development Perspectives
  • "Reading Achievement of Deaf Students: Challenging the Fourth Grade Ceiling" (2021), The Journal of Deaf Studies and Deaf Education

Frequent co-authors in Hancock's work include:

  • Tove Larsson
  • Yi Feng
  • Douglas Biber
  • Kelly S. Mix
  • Corinne A. Bower

Publications have appeared in venues such as:

  • Psychological Methods
  • Corpus Linguistics and Linguistic Theory
  • Child Development
  • International Journal of Learner Corpus Research
  • Journal of Educational Psychology

Recognition in the field includes being named a Fellow of the American Psychological Association in 2015 and a Fellow of the American Educational Research Association in 2010.

Best Publications

  • Structural equation modeling : a second course

    Gregory R. Hancock;Ralph O. Mueller

  • Performance of Bootstrapping Approaches to Model Test Statistics and Parameter Standard Error Estimation in Structural Equation Modeling

    Jonathan Nevitt;Gregory R. Hancock

  • The Reviewer’s Guide to Quantitative Methods in the Social Sciences

    Gregory R. Hancock;Ralph O. Mueller;Laura M. Stapleton

  • BEST PRACTICES IN STRUCTURAL EQUATION MODELING

    Ralph O. Mueller;Gregory R. Hancock

  • Parental Attachment, Separation-Individuation, and College Student Adjustment: A Structural Equation Analysis of Mediational Effects

    Jonathan F. Mattanah;Gregory R. Hancock;Bethany L. Brand

  • Measurement Model Quality, Sample Size, and Solution Propriety in Confirmatory Factor Models

    Phill Gagne;Gregory R Hancock

  • The Thorny Relation Between Measurement Quality and Fit Index Cutoffs in Latent Variable Models

    Daniel McNeish;Ji An;Gregory R. Hancock

  • Effect size, power, and sample size determination for structured means modeling and MIMIC approaches to between-groups hypothesis testing of means on a single latent construct.

    Gregory R. Hancock

  • Does Concept-Oriented Reading Instruction Increase Strategy Use and Conceptual Learning From Text?

    John T. Guthrie;Peggy Van Meter;Gregory R. Hancock;Solomon Alao

  • Evaluating Small Sample Approaches for Model Test Statistics in Structural Equation Modeling.

    Jonathan Nevitt;Gregory R. Hancock

  • Measuring vaccine hesitancy, confidence, trust and flu vaccine uptake: Results of a national survey of White and African American adults.

    Sandra Crouse Quinn;Amelia M. Jamison;Ji An;Gregory R. Hancock

  • On the Problem of Two-Dimensional Error Scores: Measures and Analyses of Accuracy, Bias, and Consistency

    Gregory R. Hancock;Michael S. Butler;Mark G. Fischman

  • Advances in Latent Variable Mixture Models

    Gregory R. Hancock;Karen M. Samuelsen

  • An Illustration of Second-Order Latent Growth Models.

    Gregory R. Hancock;Wen-Ling Kuo;Frank R. Lawrence

  • Construct Meaning in Multilevel Settings

    Laura M. Stapleton;Ji Seung Yang;Gregory R. Hancock

  • Structural equation modeling methods of hypothesis testing of latent variable means.

    Gregory R. Hancock

  • Improving the Root Mean Square Error of Approximation for Nonnormal Conditions in Structural Equation Modeling

    Jonathan Nevitt;Gregory R. Hancock

  • BOOTSTRAP RESAMPLING APPROACHES FOR REPEATED MEASURE DESIGNS: RELATIVE ROBUSTNESS TO SPHERICITY AND NORMALITY VIOLATIONS

    Ilona Berkovits;Gregory R. Hancock;Jonathan Nevitt

  • Exploring racial influences on flu vaccine attitudes and behavior: Results of a national survey of White and African American adults

    Sandra Crouse Quinn;Amelia Jamison;Vicki S. Freimuth;Ji An

  • Factor Analysis: Exploratory and Confirmatory

    Gregory R. Hancock;Ralph O. Mueller;Laura M. Stapleton

  • Power and Sample Size for the Root Mean Square Error of Approximation Test of Not Close Fit in Structural Equation Modeling.

    Gregory R. Hancock;Mara J. Freeman

  • Measuring the Real Relationship in Psychotherapy: Initial Validation of the Therapist Form

    Charles J. Gelso;Frances A. Kelley;Jairo N. Fuertes;Cheri Marmarosh

  • Knowledge hoarding : antecedent or consequent of negative acts? The mediating role of trust and justice

    Ann Louise Holten;Gregory Robert Hancock;Roger Persson;Åse Marie Hansen

  • Motivation and mathematics achievement: Comparisons between Asian-American and non-Asian students.

    Patricia A. Whang;Gregory R. Hancock

  • Determinants of trust in the flu vaccine for African Americans and Whites.

    Vicki S. Freimuth;Amelia M. Jamison;Ji An;Gregory R. Hancock

Frequent Co-Authors

Vicki S. Freimuth
Vicki S. Freimuth University of Georgia
Sandra Crouse Quinn
Sandra Crouse Quinn University of Maryland, College Park
Maria A. Gartstein
Maria A. Gartstein Washington State University
Bert Hayslip
Bert Hayslip University of North Texas
Annie Hogh
Annie Hogh University of Copenhagen
Åse Marie Hansen
Åse Marie Hansen University of Copenhagen
Jairo N. Fuertes
Jairo N. Fuertes Adelphi University
Charles J. Gelso
Charles J. Gelso University of Maryland, College Park
Edward Maibach
Edward Maibach George Mason University
Natasha J. Cabrera
Natasha J. Cabrera University of Maryland, College Park

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