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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Psychology 55 4306 3978 2402 2169 117 19715

Loren J. Chapman publications per year

The chart shows the history of publications by Loren J. Chapman between 1956 and 2020, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Loren J. Chapman published across 65 years, from 1956 to 2020, averaging 1.8 papers a year. Output peaked at 7 publications in 1987. 1 of the 117 publications appeared in the last two years.

No. of publications
2 4 6
Bar chart. Horizontal axis: year, 1956 to 2020. Vertical axis: number of publications, 0 to 7. Peak 7 publications in 1987. 1956: 2 publications 1957: 2 publications 1958: 2 publications 1959: 3 publications 1960: 2 publications 1961: 5 publications 1962: 0 publications 1963: 2 publications 1964: 1 publication 1965: 1 publication 1966: 0 publications 1967: 2 publications 1968: 2 publications 1969: 4 publications 1970: 0 publications 1971: 2 publications 1972: 1 publication 1973: 4 publications 1974: 3 publications 1975: 6 publications 1976: 3 publications 1977: 1 publication 1978: 6 publications 1979: 4 publications 1980: 3 publications 1981: 0 publications 1982: 6 publications 1983: 3 publications 1984: 4 publications 1985: 1 publication 1986: 1 publication 1987: 7 publications 1988: 1 publication 1989: 2 publications 1990: 4 publications 1991: 1 publication 1992: 2 publications 1993: 2 publications 1994: 3 publications 1995: 4 publications 1996: 2 publications 1997: 1 publication 1998: 1 publication 1999: 1 publication 2000: 2 publications 2001: 1 publication 2002: 0 publications 2003: 0 publications 2004: 0 publications 2005: 0 publications 2006: 1 publication 2007: 1 publication 2008: 0 publications 2009: 0 publications 2010: 0 publications 2011: 1 publication 2012: 0 publications 2013: 2 publications 2014: 1 publication 2015: 0 publications 2016: 0 publications 2017: 0 publications 2018: 0 publications 2019: 0 publications 2020: 1 publication
1956 2020

117 publications in total across all disciplines

View publications per year as a table
Loren J. Chapman: publications per year, 1956 to 2020
Year Publications
1956 2
1957 2
1958 2
1959 3
1960 2
1961 5
1962 0
1963 2
1964 1
1965 1
1966 0
1967 2
1968 2
1969 4
1970 0
1971 2
1972 1
1973 4
1974 3
1975 6
1976 3
1977 1
1978 6
1979 4
1980 3
1981 0
1982 6
1983 3
1984 4
1985 1
1986 1
1987 7
1988 1
1989 2
1990 4
1991 1
1992 2
1993 2
1994 3
1995 4
1996 2
1997 1
1998 1
1999 1
2000 2
2001 1
2002 0
2003 0
2004 0
2005 0
2006 1
2007 1
2008 0
2009 0
2010 0
2011 1
2012 0
2013 2
2014 1
2015 0
2016 0
2017 0
2018 0
2019 0
2020 1
Total 117
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Loren J. Chapman publications per year - data summary

  • Loren J. Chapman, a Psychology scholar from University of Wisconsin–Madison, has 117 publications recorded across 65 years, from 1956 to 2020.
  • The oldest publication on record dates to 1956 and the most recent to 2020.
  • The most productive year is 1987, with 7 publications.
  • The least productive years with any output are 1964, 1965, 1972, 1977 and others, with 1 publication each.
  • 17 of the 65 years in the span carry no publications at all (1962, 1966, 1970, 1981 and others).
  • The rate of publication averages 1.8 papers per year over the whole span, or 2.4 per year counting only the 48 years with at least one publication.
  • The last 5 years on the chart (2016-2020) hold 1 publication, <1% of the career total.
  • Split into equal eras - 1956-1977: 48 publications (2.2 per year); 1978-1999: 59 publications (2.7 per year); 2000-2020: 10 publications (0.5 per year).
  • Comparing the opening and closing eras, the overall trend of publication is declining.

Loren J. Chapman 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 Loren J. Chapman 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: 117 publications — 30th percentile

30% 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
111–120 686 117
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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Loren J. Chapman publication distribution in Psychology in 2026 - data summary

  • The chart plots the publication count of all 11,416 Psychology scientists ranked by Research.com in 2026, grouped into 69 ranges running from 31–40 to 705+ publications.
  • Loren J. Chapman, a Psychology scholar from University of Wisconsin–Madison, records 117 publications - the 30th percentile of the discipline.
  • 30% of ranked Psychology scientists score the same or lower than Loren J. Chapman, and about 70% score higher.
  • The median of the discipline falls in the 151–160 publications range, and Loren J. Chapman ranks below the median.
  • The most crowded range is 101–110 publications, holding 736 scientists (6% of the field).
  • 72% of the field sits in the lowest quarter of the value range (up to 201–210 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 705 publications or more, 100 scientists in all (<1% of the field).

Loren J. Chapman 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 Loren J. Chapman 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, 54–55 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: 55 D-Index — 63rd percentile

63% 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
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 55
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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Loren J. Chapman D-index placement in Psychology in 2026 - data summary

  • The chart plots the discipline H-index (D-index) of all 11,416 Psychology scientists ranked by Research.com in 2026, grouped into 58 ranges running from 30–31 to 144+ D-Index.
  • Loren J. Chapman, a Psychology scholar from University of Wisconsin–Madison, records 55 D-Index - the 63rd percentile of the discipline.
  • 63% of ranked Psychology scientists score the same or lower than Loren J. Chapman, and about 37% score higher.
  • The median of the discipline falls in the 48–49 D-Index range, and Loren J. Chapman ranks above the median.
  • The most crowded range is 32–33 D-Index, holding 702 scientists (6% of the field).
  • 68% of the field sits in the lowest quarter of the value range (up to 58–59 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 144 D-Index or more, 98 scientists in all (<1% of the field).

Overview

Loren J. Chapman is affiliated with the University of Wisconsin-Madison in the United States. The scientist's academic profile is marked by involvement in research and activities linked to this institution.

There are no records of recent papers, co-authors, or frequent publication venues associated with this scientist in the available data. Similarly, there are no documented book publications or specific fields and subfields of study listed.

The absence of listed main topics of work, awards, and noted scientific contributions means that the detailed focus areas of their research and scholarly impact cannot be outlined from the information provided.

As the scientist is not deceased, their profile reflects current or ongoing association with academic research. The available information points primarily to affiliation and identity without detailed empirical or bibliographic data.

Best Publications

  • Scales for Physical and Social Anhedonia.

    Loren J. Chapman;Jean P. Chapman;Michael L. Raulin

  • Magical ideation as an indicator of schizotypy.

    Mark Eckblad;Loren J. Chapman

  • Illusory correlation as an obstacle to the use of valid psychodiagnostic signs.

    Loren J. Chapman;Jean P. Chapman

  • Body-image aberration in Schizophrenia.

    Loren J. Chapman;Jean P. Chapman;Michael L. Raulin

  • Putatively psychosis-prone subjects 10 years later.

    Loren J. Chapman;Jean P. Chapman;Thomas R. Kwapil;Mark Eckblad

  • Genesis of popular but erroneous psychodiagnostic observations.

    Loren J. Chapman;Jean P. Chapman

  • The measurement of handedness.

    Loren J. Chapman;Jean P. Chapman

  • The measurement of differential deficit

    Loren J. Chapman;Jean P. Chapman

  • Development and validation of a scale for hypomanic personality.

    Mark Eckblad;Loren J. Chapman

  • Problems in the measurement of cognitive deficit.

    Loren J. Chapman;Jean P. Chapman

  • Illusory correlation in observational report.

    Unknown

  • Physical Anhedonia, Perceptual Aberration, and Psychosis Proneness

    Loren J. Chapman;William S. Edell;Jean P. Chapman

  • A Longitudinal Study of High Scorers on the Hypomanic Personality Scale

    Thomas R. Kwapil;Michael B. Miller;Michael B. Miller;Michael C. Zinser;Michael C. Zinser;Loren J. Chapman

  • The measurement of foot preference

    Jean P. Chapman;Loren J. Chapman;John J. Allen

  • Asymmetrical Brain Electrical Activity Discriminates Between Psychometrically-Matched Verbal and Spatial Cognitive Tasks

    Richard J. Davidson;Jean P. Chapman;Loren J. Chapman;Jeffrey B. Henriques

  • Scales for Rating Psychotic and Psychotic-like Experiences as Continua

    Loren J. Chapman;Jean P. Chapman

  • Reliabilities and intercorrelations of eight measures of proneness to psychosis.

    Loren J. Chapman;Jean P. Chapman;Eric N. Miller

  • Magical ideation and social anhedonia as predictors of psychosis proneness: A partial replication.

    Thomas R. Kwapil;Michael B. Miller;Michael C. Zinser;Jean Chapman

  • Social anhedonia in the prediction of psychosis proneness.

    Michael Mishlove;Loren J. Chapman

  • The Search for Symptoms Predictive of Schizophrenia.

    Loren J. Chapman;Jean P. Chapman

  • Facilitation of word recognition by semantic priming in schizophrenia.

    Thomas R. Kwapil;Douglas C. Hegley;Loren J. Chapman;Jean P. Chapman

Frequent Co-Authors

Jean P. Chapman
Jean P. Chapman University of Wisconsin–Madison
Thomas R. Kwapil
Thomas R. Kwapil University of Illinois at Urbana-Champaign
John J.B. Allen
John J.B. Allen University of Arizona
Donald T. Campbell
Donald T. Campbell Lehigh University
Barbara A. Cornblatt
Barbara A. Cornblatt Feinstein Institute for Medical Research
Richard J. Davidson
Richard J. Davidson University of Wisconsin–Madison
Richard M. McFall
Richard M. McFall Indiana University
Eileen M. Martin
Eileen M. Martin Rush University Medical Center
Rafael Klorman
Rafael Klorman University of Rochester
Timothy B. Baker
Timothy B. Baker University of Wisconsin–Madison

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