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Psychology
New Zealand
2026

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Psychology 83 1249 1102 5 4 282 35569
Medicine 83 15395 14480 30 28 295 35666

Keith J. Petrie publications per year

The chart shows the history of publications by Keith J. Petrie between 1983 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Keith J. Petrie published across 43 years, from 1983 to 2025, averaging 7.5 papers a year. Output peaked at 21 publications in 2017. 18 of the 324 publications appeared in the last two years.

No. of publications
5 10 15 20
Bar chart. Horizontal axis: year, 1983 to 2025. Vertical axis: number of publications, 0 to 21. Peak 21 publications in 2017. 1983: 1 publication 1984: 0 publications 1985: 1 publication 1986: 0 publications 1987: 0 publications 1988: 1 publication 1989: 2 publications 1990: 2 publications 1991: 0 publications 1992: 3 publications 1993: 1 publication 1994: 4 publications 1995: 7 publications 1996: 7 publications 1997: 7 publications 1998: 2 publications 1999: 6 publications 2000: 3 publications 2001: 8 publications 2002: 9 publications 2003: 8 publications 2004: 6 publications 2005: 10 publications 2006: 7 publications 2007: 12 publications 2008: 10 publications 2009: 11 publications 2010: 7 publications 2011: 5 publications 2012: 15 publications 2013: 8 publications 2014: 16 publications 2015: 13 publications 2016: 14 publications 2017: 21 publications 2018: 11 publications 2019: 21 publications 2020: 15 publications 2021: 15 publications 2022: 5 publications 2023: 12 publications 2024: 9 publications 2025: 9 publications
1983 2025

324 publications in total across all disciplines

View publications per year as a table
Keith J. Petrie: publications per year, 1983 to 2025
Year Publications
1983 1
1984 0
1985 1
1986 0
1987 0
1988 1
1989 2
1990 2
1991 0
1992 3
1993 1
1994 4
1995 7
1996 7
1997 7
1998 2
1999 6
2000 3
2001 8
2002 9
2003 8
2004 6
2005 10
2006 7
2007 12
2008 10
2009 11
2010 7
2011 5
2012 15
2013 8
2014 16
2015 13
2016 14
2017 21
2018 11
2019 21
2020 15
2021 15
2022 5
2023 12
2024 9
2025 9
Total 324
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Keith J. Petrie publications per year - data summary

  • Keith J. Petrie, a Psychology scholar from University of Auckland, has 324 publications recorded across 43 years, from 1983 to 2025.
  • The oldest publication on record dates to 1983 and the most recent to 2025.
  • The most productive years are 2017 and 2019, with 21 publications each.
  • The least productive years with any output are 1983, 1985, 1988 and 1993, with 1 publication each.
  • 4 of the 43 years in the span carry no publications at all (1984, 1986, 1987 and 1991).
  • The rate of publication averages 7.5 papers per year over the whole span, or 8.3 per year counting only the 39 years with at least one publication.
  • The last 5 years on the chart (2021-2025) hold 50 publications, 15% of the career total.
  • Split into equal eras - 1983-1997: 36 publications (2.4 per year); 1998-2012: 119 publications (7.9 per year); 2013-2025: 169 publications (13.0 per year).
  • Comparing the opening and closing eras, the overall trend of publication is rising.

Keith J. Petrie 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 Keith J. Petrie 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, 281–290 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: 282 publications — 85th percentile

85% 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
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
281–290 139 282
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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Keith J. Petrie 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.
  • Keith J. Petrie, a Psychology scholar from University of Auckland, records 282 publications - the 85th percentile of the discipline.
  • 85% of ranked Psychology scientists score the same or lower than Keith J. Petrie, and about 15% score higher.
  • The median of the discipline falls in the 151–160 publications range, and Keith J. Petrie ranks above 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).

Keith J. Petrie 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 Keith J. Petrie 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, 82–83 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: 83 D-Index — 89th percentile

89% 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
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 83
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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Keith J. Petrie 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.
  • Keith J. Petrie, a Psychology scholar from University of Auckland, records 83 D-Index - the 89th percentile of the discipline.
  • 89% of ranked Psychology scientists score the same or lower than Keith J. Petrie, and about 11% score higher.
  • The median of the discipline falls in the 48–49 D-Index range, and Keith J. Petrie 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).

Research.com Recognitions

  • 2026 - Research.com Psychology in New Zealand Leader Award
  • 2025 - Research.com Psychology in New Zealand Leader Award
  • 2023 - Research.com Psychology in New Zealand Leader Award
  • 2022 - Research.com Psychology in New Zealand Leader Award
  • 2015 - Fellow of the Royal Society of New Zealand

Overview

Keith J. Petrie is affiliated with the University of Auckland in New Zealand and has contributed extensively to the field of medicine, with a particular focus on cognitive neuroscience and psychiatry and mental health. Their research spans a variety of subfields including economics and econometrics, general health professions, and applied psychology.

Their main areas of study encompass pain management and the placebo effect, health systems, economic evaluations and quality of life, empathy and medical education, gout, hyperuricemia, and uric acid. They have also explored pharmaceutical economics and policy, pharmaceutical studies and practices, and psychosomatic disorders and their treatments.

Recent publications by Keith J. Petrie include:

  • Only the lonely: A study of loneliness among university students in Norway, 2020, Clinical Psychology in Europe
  • Development of the generic, multidimensional Treatment Expectation Questionnaire (TEX-Q) through systematic literature review, expert surveys and qualitative interviews, 2020, BMJ Open
  • What Should Clinicians Tell Patients about Placebo and Nocebo Effects? Practical Considerations Based on Expert Consensus, 2020, Psychotherapy and Psychosomatics
  • The Epidemiology of Insomnia and Sleep Duration Across Mental and Physical Health: The SHoT Study, 2021, Frontiers in Psychology
  • The Treatment Expectation Questionnaire (TEX-Q): Validation of a generic multidimensional scale measuring patients' treatment expectations, 2023, PLoS ONE

Keith J. Petrie frequently collaborates with other researchers, including Nicola Dalbeth, Chiara Gasteiger, Kate MacKrill, Børge Sivertsen, and Greg Gamble. Collaboration is evident in their frequent co-authorship with these scholars, showing ongoing partnerships across multiple studies.

Their work is frequently published in several key academic venues such as the Journal of Psychosomatic Research, Clinical Psychology in Europe, The Journal of Rheumatology, Annals of Behavioral Medicine, and Research in Social and Administrative Pharmacy. These journals reflect the diversity and depth of their research focus.

Recognition of Keith J. Petrie's contributions includes being named a Fellow of the Royal Society of New Zealand in 2015, highlighting their established role in the scientific community in New Zealand.

Best Publications

  • The Brief Illness Perception Questionnaire

    Elizabeth Broadbent;Keith J. Petrie;Jodie Main;John Weinman

  • The Revised Illness Perception Questionnaire (IPQ-R)

    Rona Moss-Morris;John Weinman;Keith J. Petrie;Robert Horne

  • The illness perception questionnaire: A new method for assessing the cognitive representation of illness

    John Weinman;Keith J. Petrie;Rona Moss-morris;Rob Horne

  • Changing illness perceptions after myocardial infarction: an early intervention randomized controlled trial.

    Keith J Petrie;Linda D Cameron;Chris J Ellis;Deanna Buick

  • Role of patients' view of their illness in predicting return to work and functioning after myocardial infarction: longitudinal study

    Keith J Petrie;John Weinman;Norman Sharpe;Judith Buckley

  • Disclosure of trauma and immune response to a hepatitis B vaccination program.

    Keith J. Petrie;Roger J. Booth;James W. Pennebaker;Kathryn P. Davison

  • A systematic review and meta-analysis of the Brief Illness Perception Questionnaire

    Elizabeth Broadbent;Carissa Wilkes;Heidi Koschwanez;John Weinman

  • Melatonin for the prevention and treatment of jet lag

    Andrew Herxheimer;Keith J Petrie

  • Why illness perceptions matter

    Keith J Petrie;John Weinman

  • The role of illness perceptions in patients with medical conditions

    Keith J Petrie;Lana A Jago;Daniel A Devcich

  • The immunological effects of thought suppression.

    Keith J. Petrie;Roger J. Booth;James W. Pennebaker

  • Perceptions of Health and Illness: Current Research and Applications

    Keith J. Petrie;John A. Weinman

  • Further development of an illness perception intervention for myocardial infarction patients: a randomized controlled trial.

    Elizabeth Broadbent;Chris J. Ellis;Janine Thomas;Greg Gamble

  • Functioning in chronic fatigue syndrome: Do illness perceptions play a regulatory role?

    Rona Moss-Morris;Keith J. Petrie;John Weinman

  • Patients' interpretation of symptoms as a cause of delay in reaching hospital during acute myocardial infarction.

    R. Horne;Delyth H. James;K. Petrie;J. Weinman

  • Illness perceptions: A new paradigm for psychosomatics?

    John Weinman;Keith J. Petrie

  • Effect of written emotional expression on immune function in patients with human immunodeficiency virus infection: a randomized trial.

    Keith J Petrie;Iris Fontanilla;Mark G Thomas;Roger J Booth

  • A text message programme designed to modify patients' illness and treatment beliefs improves self-reported adherence to asthma preventer medication.

    Keith J. Petrie;Kate Perry;Elizabeth Broadbent;John Weinman

  • Understanding the Dimensions of Anti-Vaccination Attitudes: the Vaccination Attitudes Examination (VAX) Scale

    Leslie R. Martin;Keith J. Petrie

  • Effect of melatonin on jet lag after long haul flights.

    K. Petrie;J. V. Conaglen;L. Thompson;K. Chamberlain

  • Psychological stress impairs early wound repair following surgery.

    Elizabeth Broadbent;Keith J. Petrie;Patrick G. Alley;Roger J. Booth

Frequent Co-Authors

Elizabeth Broadbent
Elizabeth Broadbent University of Auckland
John Weinman
John Weinman King's College London
Børge Sivertsen
Børge Sivertsen Norwegian Institute of Public Health
Rona Moss-Morris
Rona Moss-Morris King's College London
Nicola Dalbeth
Nicola Dalbeth University of Auckland
Greg D. Gamble
Greg D. Gamble University of Auckland
Mari Hysing
Mari Hysing University of Bergen
Rob Horne
Rob Horne University College London
James W. Pennebaker
James W. Pennebaker The University of Texas at Austin
Linda D. Cameron
Linda D. Cameron University of California, Merced

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