| Discipline name | D-Index | World Ranking | National Ranking | Publications | Citations |
|---|---|---|---|---|---|
| Psychology | 35 | 9987 | 981 | 138 | 3351 |
The chart shows the history of publications by John Birtchnell between 1968 and 2016, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. John Birtchnell published across 49 years, from 1968 to 2016, averaging 3.6 papers a year. Output peaked at 11 publications in 2016. 12 of the 178 publications appeared in the last two years.
178 publications in total across all disciplines
| Year | Publications |
|---|---|
| 1968 | 1 |
| 1969 | 2 |
| 1970 | 7 |
| 1971 | 8 |
| 1972 | 3 |
| 1973 | 2 |
| 1974 | 4 |
| 1975 | 5 |
| 1976 | 1 |
| 1977 | 2 |
| 1978 | 2 |
| 1979 | 4 |
| 1980 | 1 |
| 1981 | 7 |
| 1982 | 2 |
| 1983 | 5 |
| 1984 | 5 |
| 1985 | 2 |
| 1986 | 4 |
| 1987 | 5 |
| 1988 | 9 |
| 1989 | 5 |
| 1990 | 3 |
| 1991 | 5 |
| 1992 | 6 |
| 1993 | 6 |
| 1994 | 7 |
| 1995 | 3 |
| 1996 | 3 |
| 1997 | 5 |
| 1998 | 1 |
| 1999 | 1 |
| 2000 | 2 |
| 2001 | 3 |
| 2002 | 2 |
| 2003 | 1 |
| 2004 | 5 |
| 2005 | 3 |
| 2006 | 9 |
| 2007 | 0 |
| 2008 | 0 |
| 2009 | 3 |
| 2010 | 3 |
| 2011 | 3 |
| 2012 | 1 |
| 2013 | 2 |
| 2014 | 3 |
| 2015 | 1 |
| 2016 | 11 |
| Total | 178 |
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 John Birtchnell sits on this spectrum.
This scientist: 138 publications — 43rd percentile
43% of scientists in this discipline score the same or lower.
The last bar groups every scientist with 705 publications or more.
| 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 | 138 |
| 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 |
The chart shows the D-index (discipline H-index) distribution of Psychology scientists ranked by Research.com in 2026. The highlighted bar marks where John Birtchnell sits on this spectrum.
This scientist: 35 D-Index — 16th percentile
16% of scientists in this discipline score the same or lower.
The last bar groups every scientist with 144 D-Index or more.
| D-Index | Scientists | This scientist |
|---|---|---|
| 30–31 | 398 | |
| 32–33 | 702 | |
| 34–35 | 671 | 35 |
| 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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John Birtchnell;Chris Evans;John Kennard
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John Birtchnell;Chris Evans
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