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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Psychology 34 10264 9606 5391 4922 112 4407

Kenn Apel publications per year

The chart shows the history of publications by Kenn Apel between 1987 and 2024, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Kenn Apel published across 38 years, from 1987 to 2024, averaging 3.2 papers a year. Output peaked at 9 publications in 2011. 1 of the 120 publications appeared in the last two years.

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

120 publications in total across all disciplines

View publications per year as a table
Kenn Apel: publications per year, 1987 to 2024
Year Publications
1987 1
1988 1
1989 1
1990 0
1991 0
1992 0
1993 0
1994 0
1995 0
1996 0
1997 0
1998 0
1999 6
2000 4
2001 6
2002 4
2003 7
2004 6
2005 3
2006 6
2007 6
2008 6
2009 8
2010 6
2011 9
2012 6
2013 7
2014 6
2015 5
2016 2
2017 3
2018 1
2019 2
2020 3
2021 3
2022 1
2023 0
2024 1
Total 120
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Kenn Apel publication distribution in Psychology in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Psychology in 2026. The highlighted bar marks where Kenn Apel sits on this spectrum.

No. of scientists
200 400 600
Bar chart with 69 bars. Horizontal axis: publications, 31–40 to 705+. Vertical axis: number of scientists, 0 to 736. Most scientists, 736, have 101–110 publications. The last bar groups every scientist with 705 publications or more. The highlighted bar, 111–120 publications, is where this scientist sits. 31–40 publications: 6 scientists 41–50 publications: 52 scientists 51–60 publications: 138 scientists 61–70 publications: 299 scientists 71–80 publications: 461 scientists 81–90 publications: 605 scientists 91–100 publications: 713 scientists 101–110 publications: 736 scientists 111–120 publications: 686 scientists 121–130 publications: 670 scientists 131–140 publications: 644 scientists 141–150 publications: 597 scientists 151–160 publications: 576 scientists 161–170 publications: 477 scientists 171–180 publications: 450 scientists 181–190 publications: 397 scientists 191–200 publications: 343 scientists 201–210 publications: 328 scientists 211–220 publications: 313 scientists 221–230 publications: 283 scientists 231–240 publications: 226 scientists 241–250 publications: 196 scientists 251–260 publications: 201 scientists 261–270 publications: 171 scientists 271–280 publications: 151 scientists 281–290 publications: 139 scientists 291–300 publications: 113 scientists 301–310 publications: 102 scientists 311–320 publications: 100 scientists 321–330 publications: 76 scientists 331–340 publications: 92 scientists 341–350 publications: 85 scientists 351–360 publications: 69 scientists 361–370 publications: 71 scientists 371–380 publications: 63 scientists 381–390 publications: 58 scientists 391–400 publications: 57 scientists 401–410 publications: 43 scientists 411–420 publications: 33 scientists 421–430 publications: 50 scientists 431–440 publications: 41 scientists 441–450 publications: 32 scientists 451–460 publications: 27 scientists 461–470 publications: 28 scientists 471–480 publications: 25 scientists 481–490 publications: 28 scientists 491–500 publications: 20 scientists 501–510 publications: 23 scientists 511–520 publications: 26 scientists 521–530 publications: 17 scientists 531–540 publications: 21 scientists 541–550 publications: 14 scientists 551–560 publications: 16 scientists 561–570 publications: 10 scientists 571–580 publications: 22 scientists 581–590 publications: 9 scientists 591–600 publications: 14 scientists 601–610 publications: 9 scientists 611–620 publications: 11 scientists 621–630 publications: 4 scientists 631–640 publications: 7 scientists 641–650 publications: 5 scientists 651–660 publications: 10 scientists 661–670 publications: 8 scientists 671–680 publications: 8 scientists 681–690 publications: 4 scientists 691–700 publications: 3 scientists 701–704 publications: 4 scientists 705+ publications: 100 scientists
31–40 publications 705+

This scientist: 112 publications — 28th percentile

28% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 705 publications or more.

View publications distribution as a table
Number of Psychology scientists by publication count, Research.com 2026 ranking edition. Based on 11,416 ranked scientists.
Publications Scientists This scientist
31–40 6
41–50 52
51–60 138
61–70 299
71–80 461
81–90 605
91–100 713
101–110 736
111–120 686 112
121–130 670
131–140 644
141–150 597
151–160 576
161–170 477
171–180 450
181–190 397
191–200 343
201–210 328
211–220 313
221–230 283
231–240 226
241–250 196
251–260 201
261–270 171
271–280 151
281–290 139
291–300 113
301–310 102
311–320 100
321–330 76
331–340 92
341–350 85
351–360 69
361–370 71
371–380 63
381–390 58
391–400 57
401–410 43
411–420 33
421–430 50
431–440 41
441–450 32
451–460 27
461–470 28
471–480 25
481–490 28
491–500 20
501–510 23
511–520 26
521–530 17
531–540 21
541–550 14
551–560 16
561–570 10
571–580 22
581–590 9
591–600 14
601–610 9
611–620 11
621–630 4
631–640 7
641–650 5
651–660 10
661–670 8
671–680 8
681–690 4
691–700 3
701–704 4
705+ 100
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Kenn Apel D-index placement in Psychology in 2026

The chart shows the D-index (discipline H-index) distribution of Psychology scientists ranked by Research.com in 2026. The highlighted bar marks where Kenn Apel sits on this spectrum.

No. of scientists
200 400 600
Bar chart with 58 bars. Horizontal axis: D-Index, 30–31 to 144+. Vertical axis: number of scientists, 0 to 702. Most scientists, 702, have 32–33 D-Index. The last bar groups every scientist with 144 D-Index or more. The highlighted bar, 34–35 D-Index, is where this scientist sits. 30–31 D-Index: 398 scientists 32–33 D-Index: 702 scientists 34–35 D-Index: 671 scientists 36–37 D-Index: 659 scientists 38–39 D-Index: 641 scientists 40–41 D-Index: 671 scientists 42–43 D-Index: 617 scientists 44–45 D-Index: 558 scientists 46–47 D-Index: 495 scientists 48–49 D-Index: 487 scientists 50–51 D-Index: 445 scientists 52–53 D-Index: 390 scientists 54–55 D-Index: 408 scientists 56–57 D-Index: 345 scientists 58–59 D-Index: 325 scientists 60–61 D-Index: 321 scientists 62–63 D-Index: 248 scientists 64–65 D-Index: 290 scientists 66–67 D-Index: 218 scientists 68–69 D-Index: 219 scientists 70–71 D-Index: 215 scientists 72–73 D-Index: 183 scientists 74–75 D-Index: 169 scientists 76–77 D-Index: 132 scientists 78–79 D-Index: 137 scientists 80–81 D-Index: 120 scientists 82–83 D-Index: 112 scientists 84–85 D-Index: 86 scientists 86–87 D-Index: 101 scientists 88–89 D-Index: 83 scientists 90–91 D-Index: 77 scientists 92–93 D-Index: 70 scientists 94–95 D-Index: 78 scientists 96–97 D-Index: 58 scientists 98–99 D-Index: 53 scientists 100–101 D-Index: 57 scientists 102–103 D-Index: 48 scientists 104–105 D-Index: 53 scientists 106–107 D-Index: 46 scientists 108–109 D-Index: 24 scientists 110–111 D-Index: 35 scientists 112–113 D-Index: 27 scientists 114–115 D-Index: 32 scientists 116–117 D-Index: 31 scientists 118–119 D-Index: 22 scientists 120–121 D-Index: 16 scientists 122–123 D-Index: 24 scientists 124–125 D-Index: 18 scientists 126–127 D-Index: 11 scientists 128–129 D-Index: 19 scientists 130–131 D-Index: 10 scientists 132–133 D-Index: 16 scientists 134–135 D-Index: 10 scientists 136–137 D-Index: 12 scientists 138–139 D-Index: 8 scientists 140–141 D-Index: 5 scientists 142–143 D-Index: 12 scientists 144+ D-Index: 98 scientists
30–31 D-Index 144+

This scientist: 34 D-Index — 13th percentile

13% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 144 D-Index or more.

View D-Index distribution as a table
Number of Psychology scientists by D-index, Research.com 2026 ranking edition. Based on 11,416 ranked scientists.
D-Index Scientists This scientist
30–31 398
32–33 702
34–35 671 34
36–37 659
38–39 641
40–41 671
42–43 617
44–45 558
46–47 495
48–49 487
50–51 445
52–53 390
54–55 408
56–57 345
58–59 325
60–61 321
62–63 248
64–65 290
66–67 218
68–69 219
70–71 215
72–73 183
74–75 169
76–77 132
78–79 137
80–81 120
82–83 112
84–85 86
86–87 101
88–89 83
90–91 77
92–93 70
94–95 78
96–97 58
98–99 53
100–101 57
102–103 48
104–105 53
106–107 46
108–109 24
110–111 35
112–113 27
114–115 32
116–117 31
118–119 22
120–121 16
122–123 24
124–125 18
126–127 11
128–129 19
130–131 10
132–133 16
134–135 10
136–137 12
138–139 8
140–141 5
142–143 12
144+ 98
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Overview

Kenn Apel is affiliated with the University of South Carolina in the United States and conducts research primarily in the fields of psychology and social sciences, with a focus on developmental and educational psychology, education, statistics and probability, and cognitive neuroscience.

Their research encompasses multiple topics, including:

  • Reading and literacy development
  • Writing and handwriting education
  • Second language acquisition and learning
  • Cognitive and developmental aspects of mathematical skills
  • Language development and disorders
  • Educational strategies and epistemologies
  • Autism spectrum disorder research

Apel's publication record includes several recent papers that address various aspects of linguistic awareness, morphological skills, and reading processes. Notable publications are:

  • "Morphological Awareness Skills of Second- and Third-Grade Students With and Without Speech Sound Disorders" (2020) published in Language Speech and Hearing Services in Schools
  • "A Different View on the Simple View of Reading" (2021) published in Remedial and Special Education
  • "Effects of Affix Type and Base Word Transparency on Students' Performance on Different Morphological Awareness Measures" (2022) published in Journal of Speech Language and Hearing Research

Frequent coauthors collaborating with Apel include:

  • Victoria S. Henbest
  • Lisa Fitton
  • Krystal L. Werfel
  • Yaacov Petscher
  • Maria Rosa Brea-Spahn

Apel regularly publishes in the following venues:

  • Journal of Speech Language and Hearing Research
  • Language Speech and Hearing Services in Schools
  • Remedial and Special Education
  • Revista Chilena de Fonoaudiología

Best Publications

  • Early Development of Language by Hand: Composing, Reading, Listening, and Speaking Connections; Three Letter-Writing Modes; and Fast Mapping in Spelling

    Virginia W Berninger;Robert D Abbott;Janine Jones;Beverly J Wolf

  • Phonological and Spatial Processing Abilities in Language- and Reading-Impaired Children

    Alan G. Kamhi;Hugh W. Catts;Daria Mauer;Kenn Apel

  • Metalinguistic contributions to reading and spelling in second and third grade students

    Kenn Apel;Elizabeth B. Wilson-Fowler;Danielle Brimo;Nancy A. Perrin

  • What Is Orthographic Knowledge

    Kenn Apel

  • Theory-Guided Spelling Assessment and Intervention: A Case Study

    Kenn Apel;Julie J. Masterson

  • Checks and Balances: Keeping the Science in Our Profession.

    Kenn Apel

  • Contributions of morphological awareness skills to word-level reading and spelling in first-grade children with and without speech sound disorder.

    Kenn Apel;Jessika Lawrence

  • Using Multiple Measures of Morphological Awareness to Assess Its Relation to Reading.

    Kenn Apel;Emily Diehm;Lynda Apel

  • Effects of Phonotactic and Orthotactic Probabilities During Fast Mapping on 5-Year-Olds' Learning to Spell

    Kenn Apel;Julie A. Wolter;Julie J. Masterson

  • A Comprehensive Definition of Morphological Awareness: Implications for Assessment

    Kenn Apel

  • Examining the contributions of syntactic awareness and syntactic knowledge to reading comprehension

    Danielle Brimo;Kenn Apel;Treeva Fountain

  • Morphological Awareness Intervention With Kindergarteners and First and Second Grade Students From Low SES Homes A Small Efficacy Study

    Kenn Apel;Emily Diehm

  • The Spelling Sensitivity Score: Noting Developmental Changes in Spelling Knowledge

    Julie J. Masterson;Kenn Apel

  • The Acquisition of Mental Orthographic Representations for Reading and Spelling Development

    Kenn Apel

  • Spelling Assessment: Charting a Path to Optimal Intervention.

    Julie J. Masterson;Kenn Apel

  • Morphological Awareness Intervention With Kindergartners and First- and Second-Grade Students From Low Socioeconomic Status Homes: A Feasibility Study

    Kenn Apel;Danielle Brimo;Emily Diehm;Lynda Apel

  • The Relation of Linguistic Awareness and Vocabulary to Word Reading and Spelling for First-Grade Students Participating in Response to Intervention

    Young-Suk Kim;Kenn Apel;Stephanie Al Otaiba

  • Second Chances: Improving Decoding Skills in the Older Student.

    Kenn Apel;Linda K. Swank

  • Initial Acquisition of Mental Graphemic Representations in Children with Language Impairment

    Julie Ann Wolter;Kenn Apel

  • Cognitive Strengths and Weaknesses in Language-Impaired Children: One More Look

    Lauren K. Nelson;Alan G. Kamhi;Kenn Apel

  • Comprehension Tools for Teachers: Reading for Understanding from Prekindergarten Through Fourth Grade

    Carol McDonald Connor;Beth M. Phillips;Michael Kaschak;Kenn Apel

Frequent Co-Authors

Young-Suk Grace Kim
Young-Suk Grace Kim University of California, Irvine
Stephanie Al Otaiba
Stephanie Al Otaiba Southern Methodist University
Alan G. Kamhi
Alan G. Kamhi University of North Carolina at Greensboro
Christopher J. Lonigan
Christopher J. Lonigan Florida State University
Michael P. Kaschak
Michael P. Kaschak Florida State University
Beth M. Phillips
Beth M. Phillips Florida State University
Carol McDonald Connor
Carol McDonald Connor University of California, Irvine
Ralph Radach
Ralph Radach University of Wuppertal
Hugh W. Catts
Hugh W. Catts Florida State University
Virginia W. Berninger
Virginia W. Berninger University of Washington

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