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Douglas H. Clements

Douglas H. Clements

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Social Sciences and Humanities 77 455 391 214 181 331 26399

Douglas H. Clements publications per year

The chart shows the history of publications by Douglas H. Clements between 1983 and 2026, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Douglas H. Clements published across 44 years, from 1983 to 2026, averaging 8.1 papers a year. Output peaked at 19 publications in 2020. 6 of the 355 publications appeared in the last two years.

No. of publications
5 10 15
Bar chart. Horizontal axis: year, 1983 to 2026. Vertical axis: number of publications, 0 to 19. Peak 19 publications in 2020. 1983: 2 publications 1984: 8 publications 1985: 5 publications 1986: 6 publications 1987: 4 publications 1988: 3 publications 1989: 5 publications 1990: 8 publications 1991: 5 publications 1992: 4 publications 1993: 4 publications 1994: 3 publications 1995: 9 publications 1996: 3 publications 1997: 7 publications 1998: 9 publications 1999: 15 publications 2000: 11 publications 2001: 7 publications 2002: 7 publications 2003: 8 publications 2004: 6 publications 2005: 3 publications 2006: 8 publications 2007: 3 publications 2008: 10 publications 2009: 16 publications 2010: 2 publications 2011: 11 publications 2012: 10 publications 2013: 7 publications 2014: 10 publications 2015: 11 publications 2016: 14 publications 2017: 17 publications 2018: 12 publications 2019: 14 publications 2020: 19 publications 2021: 14 publications 2022: 6 publications 2023: 12 publications 2024: 11 publications 2025: 5 publications 2026: 1 publication
1983 2026

355 publications in total across all disciplines

View publications per year as a table
Douglas H. Clements: publications per year, 1983 to 2026
Year Publications
1983 2
1984 8
1985 5
1986 6
1987 4
1988 3
1989 5
1990 8
1991 5
1992 4
1993 4
1994 3
1995 9
1996 3
1997 7
1998 9
1999 15
2000 11
2001 7
2002 7
2003 8
2004 6
2005 3
2006 8
2007 3
2008 10
2009 16
2010 2
2011 11
2012 10
2013 7
2014 10
2015 11
2016 14
2017 17
2018 12
2019 14
2020 19
2021 14
2022 6
2023 12
2024 11
2025 5
2026 1
Total 355
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Douglas H. Clements publications per year - data summary

  • Douglas H. Clements, a Social Sciences and Humanities scholar from University of Denver, has 355 publications recorded across 44 years, from 1983 to 2026.
  • The oldest publication on record dates to 1983 and the most recent to 2026.
  • The most productive year is 2020, with 19 publications.
  • The least productive year with any output is 2026, with 1 publication.
  • The rate of publication averages 8.1 papers per year over the whole span, or 8.1 per year counting only the 44 years with at least one publication.
  • The last 5 years on the chart (2022-2026) hold 35 publications, 10% of the career total.
  • Split into equal eras - 1983-1997: 76 publications (5.1 per year); 1998-2012: 126 publications (8.4 per year); 2013-2026: 153 publications (10.9 per year).
  • Comparing the opening and closing eras, the overall trend of publication is rising.

Douglas H. Clements 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 Douglas H. Clements sits on this spectrum.

No. of scientists
100 200 300 400
Bar chart with 54 bars. Horizontal axis: publications, 44–53 to 570+. Vertical axis: number of scientists, 0 to 474. Most scientists, 474, have 114–123 publications. The last bar groups every scientist with 570 publications or more. The highlighted bar, 324–333 publications, is where this scientist sits. 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
44–53 publications 570+

This scientist: 331 publications — 91st percentile

91% of scientists in this discipline score the same or lower.

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

View publications distribution as a table
Number of Social Sciences and Humanities scientists by publication count, Research.com 2026 ranking edition. Based on 7,777 ranked scientists.
Publications Scientists This scientist
44–53 28
54–63 61
64–73 161
74–83 225
84–93 301
94–103 390
104–113 406
114–123 474
124–133 453
134–143 434
144–153 407
154–163 411
164–173 391
174–183 313
184–193 319
194–203 304
204–213 285
214–223 246
224–233 213
234–243 170
244–253 167
254–263 162
264–273 138
274–283 138
284–293 113
294–303 106
304–313 95
314–323 101
324–333 81 331
334–343 69
344–353 56
354–363 36
364–373 42
374–383 41
384–393 44
394–403 27
404–413 30
414–423 20
424–433 29
434–443 29
444–453 25
454–463 19
464–473 21
474–483 11
484–493 17
494–503 7
504–513 6
514–523 12
524–533 10
534–543 7
544–553 6
554–563 12
564–569 8
570+ 100
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Douglas H. Clements publication distribution in Social Sciences and Humanities in 2026 - data summary

  • The chart plots the publication count of all 7,777 Social Sciences and Humanities scientists ranked by Research.com in 2026, grouped into 54 ranges running from 44–53 to 570+ publications.
  • Douglas H. Clements, a Social Sciences and Humanities scholar from University of Denver, records 331 publications - the 91st percentile of the discipline.
  • 91% of ranked Social Sciences and Humanities scientists score the same or lower than Douglas H. Clements, and about 9% score higher.
  • The median of the discipline falls in the 164–173 publications range, and Douglas H. Clements ranks above the median.
  • The most crowded range is 114–123 publications, holding 474 scientists (6% of the field).
  • 57% of the field sits in the lowest quarter of the value range (up to 174–183 publications), so the distribution is heavily right-skewed and high scores are rare.
  • The final bar has no upper bound: it groups every scientist with 570 publications or more, 100 scientists in all (1% of the field).

Douglas H. Clements 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 Douglas H. Clements sits on this spectrum.

No. of scientists
100 200 300
Bar chart with 71 bars. Horizontal axis: D-Index, 30 to 100+. Vertical axis: number of scientists, 0 to 313. Most scientists, 313, have 42 D-Index. The last bar groups every scientist with 100 D-Index or more. The highlighted bar, 77 D-Index, is where this scientist sits. 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: 77 D-Index — 94th percentile

94% of scientists in this discipline score the same or lower.

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

View D-Index distribution as a table
Number of Social Sciences and Humanities scientists by D-index, Research.com 2026 ranking edition. Based on 7,777 ranked scientists.
D-Index Scientists This scientist
30 177
31 210
32 222
33 188
34 181
35 243
36 261
37 272
38 278
39 300
40 297
41 308
42 313
43 300
44 269
45 260
46 228
47 251
48 203
49 186
50 187
51 166
52 138
53 141
54 131
55 137
56 109
57 129
58 95
59 105
60 106
61 86
62 94
63 77
64 79
65 59
66 68
67 51
68 49
69 40
70 43
71 40
72 50
73 46
74 43
75 45
76 45
77 30 77
78 25
79 31
80 29
81 18
82 21
83 26
84 15
85 15
86 19
87 19
88 12
89 7
90 19
91 20
92 13
93 9
94 13
95 8
96 7
97 6
98 6
99 6
100+ 97
Download as CSV

Douglas H. Clements D-index placement in Social Sciences and Humanities in 2026 - data summary

  • The chart plots the discipline H-index (D-index) of all 7,777 Social Sciences and Humanities scientists ranked by Research.com in 2026, grouped into 71 ranges running from 30 to 100+ D-Index.
  • Douglas H. Clements, a Social Sciences and Humanities scholar from University of Denver, records 77 D-Index - the 94th percentile of the discipline.
  • 94% of ranked Social Sciences and Humanities scientists score the same or lower than Douglas H. Clements, and about 6% score higher.
  • The median of the discipline falls in the 45 D-Index range, and Douglas H. Clements ranks above the median.
  • The most crowded range is 42 D-Index, holding 313 scientists (4% of the field).
  • 59% of the field sits in the lowest quarter of the value range (up to 47 D-Index), so the distribution is heavily right-skewed and high scores are rare.
  • The final bar has no upper bound: it groups every scientist with 100 D-Index or more, 97 scientists in all (1% of the field).

Overview

Douglas H. Clements is affiliated with the University of Denver in the United States. Their research primarily spans the fields of social sciences and mathematics, with a notable focus on education and developmental psychology.

The scientist's research topics cover a range of themes including:

  • Cognitive and developmental aspects of mathematical skills
  • Mathematics education and teaching techniques
  • Early childhood education and development
  • School choice and performance
  • Parental involvement in education
  • Education methods and practices
  • Science education and pedagogy

Douglas H. Clements has published extensively in several academic venues, with frequent appearances in:

  • Education Sciences
  • UNC Libraries
  • Mathematics Teacher Learning and Teaching PK-12
  • Journal for Research in Mathematics Education
  • ZDM

Their recent papers include:

  • "Subitizing: What Is It? Why Teach It?" (2021), published in Mathematics Teacher Learning and Teaching PK-12
  • "STEM for Inclusive Excellence and Equity" (2020), published in Early Education and Development
  • "Effects on Mathematics and Executive Function of a Mathematics and Play Intervention Versus Mathematics Alone" (2020), published in Journal for Research in Mathematics Education
  • "Research and Pedagogies for Early Math" (2023), published in Education Sciences
  • "Efficacy of a learning trajectory approach compared to a teach-to-target approach for addition and subtraction" (2020), published in ZDM

Douglas H. Clements collaborates frequently with other researchers, including:

  • Julie Sarama
  • Arthur J. Baroody
  • Shannon Stark Guss
  • Yixiao Dong
  • Megan Vinh

Best Publications

  • Geometry and spatial reasoning.

    Douglas H. Clements;Michael T. Battista

  • Learning and Teaching Early Math: The Learning Trajectories Approach

    Douglas H. Clements;Julie Sarama

  • Early Childhood Mathematics Education Research: Learning Trajectories for Young Children

    Julie Sarama;Douglas H. Clements

  • Effects of a Preschool Mathematics Curriculum: Summative Research on the Building Blocks Project

    Douglas H. Clements;Julie Sarama

  • Learning Trajectories in Mathematics Education

    Douglas H. Clements;Julie Sarama

  • Effects of Computer Programming on Young Children's Cognition

    Douglas H. Clements;Dominic F. Gullo

  • Early Childhood Mathematics Learning

    Julie Sarama;Douglas H. Clements

  • Experimental Evaluation of the Effects of a Research-Based Preschool Mathematics Curriculum:

    Douglas H. Clements;Julie Sarama

  • Young Children's Concepts of Shape.

    Douglas H. Clements;Sudha Swaminathan;Mary Anne Zeitler Hannibal;Julie Sarama

  • ‘Concrete’ Manipulatives, Concrete Ideas:

    Douglas H. Clements

  • Engaging young children in mathematics : standards for early childhood mathematics education

    Douglas H. Clements;Julie Sarama;Edito DiBiase;Ann-Marie DiBiase

  • Early Childhood Mathematics Intervention

    Douglas H. Clements;Julie Sarama

  • Rethinking "Concrete" Manipulatives

    Douglas H. Clements;Sue McMillen

  • Mathematics Learned by Young Children in an Intervention Based on Learning Trajectories: A Large-Scale Cluster Randomized Trial

    Douglas H. Clements;Julie Sarama;Mary Elaine Spitler;Alissa A. Lange

  • Young Children and Technology

    Douglas Clements

  • Subitizing: What Is It? Why Teach It?.

    Douglas H. Clements

  • Building Blocks for early childhood mathematics

    Julie Sarama;Douglas H. Clements

  • Which Preschool Mathematics Competencies Are Most Predictive of Fifth Grade Achievement

    Tutrang Nguyen;Tyler W. Watts;Greg J. Duncan;Douglas H. Clements

  • Early childhood teacher education: the case of geometry

    Douglas H. Clements;Julie Sarama

  • Young Children and Computers: Crossroads and Directions from Research. Research in Review.

    Douglas H. Clements

  • Engaging Young Children in Mathematics: Standards for Early Childhood Mathematics Education. Studies in Mathematical Thinking and Learning Series.

    Douglas H. Clements;Ann-Marie DiBiase;Julie Sarama

Frequent Co-Authors

Julie Sarama
Julie Sarama University of Denver
Greg J. Duncan
Greg J. Duncan University of California, Irvine
Arthur J. Baroody
Arthur J. Baroody University of Illinois at Urbana-Champaign
Drew H. Bailey
Drew H. Bailey University of California, Irvine
Thurston Domina
Thurston Domina University of North Carolina at Chapel Hill
Mark W. Lipsey
Mark W. Lipsey Vanderbilt University
Katherine Magnuson
Katherine Magnuson University of Wisconsin–Madison
Hirokazu Yoshikawa
Hirokazu Yoshikawa New York University
Jason L. Anthony
Jason L. Anthony University of South Florida
Elizabeth T. Gershoff
Elizabeth T. Gershoff The University of Texas at Austin

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