Type Statistics & Surveys

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MBTI™ Statistics '98

The figures below are from a random sampling of 3009 people culled from a total pool of 16,000 using the 1998 MBTI™ Form M. The individuals whose form results were used in this random sampling were not provided with the data to verify or question their accuracy. But these numbers do provide a working base on which to build further understanding and development of the model as extraplated to larger populations.

At Toronto's 1998 Ontario Association for the Application of Personality Type Conference, "Growing with Type," Danielle Poirier gave an excellent presentation on the then-new MBTI™ Form M and manual, for those who may be interested in researching more background information for these figures. These MBTI™ statistics are from the psych-type list, circa 1998.

M - Males, F - Females, T - Totals

Breakdown by Type

ISTJ
M - 16.4%
F - 6.9%
T - 11.6%
ISFJ
M - 8.1%
F - 19.4%
T - 13.8%
INFJ
M - 1.3%
F - 1.6%
T - 1.46%
INTJ
M - 3.3%
F - 0.8%
T - 2.1%
ISTP
M - 8.5%
F - 2.4%
T - 5.4%
ISFP
M - 7.6%
F - 9.9%
T - 8.8%
INFP
M - 4.1%
F - 4.6
T - 4.4%

INTP
M - 4.8%
F - 1.8%
T - 3.3%

ESTP
M - 5.6%
F - 3.0%
T - 4.3%
ESFP
M - 6.9%
F - 10.1%
T - 8.5%
ENFP
M - 6.4%
F - 9.7%
T - 8.1%
ENTP
M - 4.0%
F - 2.4%
T - 3.2%
ESTJ
M - 11.2%
F - 6.3%
T - 8.7%
ESFJ
M - 7.5%
F - 16.9%
T - 12.3%
ENFJ
M - 1.6%
F - 3.3%
T - 2.5%
ENTJ
M - 2.7%
F - 0.9%
T - 1.8%

The modal type (the largest group) for males in this sampling is ISTJ. For females, the modal type is ISFJ. ISFJ is the largest type group overall, in this sampling. Male INFJs and female INTJs are the smallest groups by gender within this population, with INFJ the rarest overall type.

Breakdown by preferences:

Preference

Males

Females

Total

E

45.9%

52.5%

49.3%

I

54.1%

47.5%

50.7%

S

71.7%

74.9%

73.3%

N

28.3%

25.1%

26.7%

T

56.5%

24.5%

40.2%

F

43.5%

75.5%

59.8%

J

52.0%

56.2%

54.1%

P

48.0%

43.8%

45.9%

This would indicate that the E-I split is close to 50-50.
The S-N is close to 75-25.
The T-F is close to 40-60.
The J-P is close to 55-45.

There is some speculation that the general male T preference (just over 50% of all males) and female F preference (75%),
reflects skewing due to societal pressures to conform to established gender roles.

Breakdown by Temperament

Temperament

Males

Females

Total

SJ

43.1%

49.5%

46.4%

SP

28.6%

25.3%

27.0%

NF

19.4%

18.5%

16.4%

NT

8.9%

6.7%

10.3%


Breakdown by Function Pairs

Function pair

Males

Females

Total

ST

41.7%

18.5%

29.9%

SF

30.0%

56.3%

43.4%

NF

19.4%

18.5%

16.4%

NT

8.9%

6.7%

10.3%


That INFJ turns out as the rarest type is unsurprising.
But it is surprising that among women and men combined, there is an overall preference for F, not T.

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MBTI Statistics '88 - '91

Some older statistics, from the intj-list.

The Journal of Psychological Type, Volume 37, 1996 contains a paper by Allen L. Hammer and Wayne D. Mitchell that examines type distributions in US adults. The type preferences of a national (US) sample stratified by gender, ethnicity and geographic location were obtained from 1,267 adults aged 18 to 94 who completed Form G of the MBTI™ between 1988 and 1991. This sample was selected from a larger sample to match as closely as possible the gender by ethnicity breakdown of the US 1990 Census. Compared to three previous estimates of type percentages in the population, the present sample provides the closest approximation to the type table that might be obtained from a national random sample.
The results are summarised below:

The 16 Types
ISTJ  15.6%
ISFJ  11.5%
INFJ    2.6%
INTJ    3.5%
ISTP    6.4%
ISFP   4.5%
INFP   4.3%
INTP    5.2%
ESTP  4.8%
ESFP  5.7%
ENFP  6.3%
ENTP  4.7%
ESTJ   9.9%
ESFJ   9.6%
ENFJ   2.5%
ENTJ   2.8%
Dichotomous Preferences
E  46.3%
I   53.7%     
S  68.1%
N  31.9%
T  52.9%
F  47.1%
J  58.1%
P  41.9%
Functional Pairs and Temperaments
ST  36.8%
SF  31.3%
NF  15.8%
NT  16.1%
SJ  46.7%
SP  21.4%

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By Gender -- Females:
The 16 Types
ISTJ   12.3%
ISFJ   16.2%
INFJ     3.1%
INTJ     2.2%
ISTP    4.3%
ISFP    6.4%
INFP    4.2%
INTP    4.0%
ESTP   3.6%
ESFP   7.2%
ENFP   6.6%
ENTP   2.8%
ESTJ    7.3%
ESFJ  14.1%
ENFJ    3.4%
ENTJ    2.1%
Dichotomous Preferences
E  47.2%
I   52.8%
S  71.4%
N  28.6%
T  38.8%
F  61.2%
J  60.8%
P  39.2%
Functional Pairs and Temperaments
ST  27.5%
SF  43.9%
NF  17.4%
NT  11.2%
SJ  49.9%
SP  21.6%

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By Gender -- Males:

The 16 Types
ISTJ   19.4%
ISFJ     6.3%
INFJ     2.0%
INTJ     4.8%
ISTP    8.7%
ISFP    2.3%
INFP    4.5%
INTP    6.5%
ESTP   6.2%
ESFP   4.0%
ENFP   6.0%
ENTP   6.7%
ESTJ  12.9%
ESFJ   4.7%
ENFJ   1.5%
ENTJ   3.5%
Dichotomous Preferences
E  45.4%
I   54.6%
S  64.4%
N  35.6%
T  68.6%
F  31.4%
J  55.1%
P  44.9%
Functional Pairs and Temperaments
ST  47.1%
SF  17.4%
NF  14.0%
NT  21.5%
SJ  43.2%
SP  21.2%

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"We are all in the gutter,
but some of us are looking at the stars."

Oscar Wilde

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November 21, 2004

 

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