# Thread: MBTI and Big 5 correspondence

1. ## MBTI and Big 5 correspondence

I recently mentioned in another thread that it should be possible to compute your MBTI score from your Big 5 score based on published Big 5 / MBTI correlations, which are remarkably high. This may be useful for those who aren't sure about their MBTI type and would like to try to get at it from a different angle. In this thread I will provide a legal version of the Big 5, and will try to work out how to convert the Big 5 score to your MBTI score in a reasonable way. Figuring out the best way to do the conversion is a work in progress. Once I / we are satisfied with the method, I will implement a javascript version that scores it for you - automagic MBTI via Big 5. Also, I used the following references to make this happen:

• McCrae, R. & Costa, P. (1989). Reinterpreting the Myers-Briggs Type Indicator From the Perspective of the Five-Factor Model of Personality. Journal of Personality.
• Oliver, J., Naumann, L. & Soto, C. (2008). Paradigm Shift to the Integrative Big Five Trait Taxonomy. In Handbook of Personality, 3rd ed.

Step 1: Take the Big 5

Step 2: Score the Big 5

Do not read this section before taking the Big 5!

Step 3: Convert Big 5 to MBTI

For my first attempt I propose the most obvious thing - each MBTI preference is a linear combination of the Big 5 Factor scores. A score below 0 is either E, S, T or J, while a score above 0 is either I, N, F or P. I have not thought about how to interpret the magnitudes yet, although it should be possible. It would be nice to use only the significant correlations, but in order to make this work we need them all (for now). So, perform the following calculation:

HTML Code:
```Men
E/I =  .05*N - .34*E + .15*O + .10*A + .17*C
S/N =  .07*N + .06*E + .61*O - .27*A - .15*C
T/F = -.11*N + .22*E + .01*O + .25*A - .16*C
J/P = -.10*N + .11*E + .04*O - .10*A - .34*C
Women
E/I =  .08*N - .38*E - .04*O - .03*A - .02*C
S/N =  .16*N + .09*E + .41*O - .01*A - .04*C
T/F =  .15*N - .01*E - .06*O + .46*A - .39*C
J/P =  .12*N + .00*E + .18*O + .11*A - .55*C```
If any brave souls who are sure of their type will now try this out, I'll be able to evaluate how much or little I messed this up.. ^_^

2. Okay, I didn't want to take out a pen so I looked it up online and took it there. Can you use this or should I do something different? Sorry :/

Openness to Experience/Intellect (Your percentile: 84)

3. Originally Posted by nicolita
Okay, I didn't want to take out a pen so I looked it up online and took it there. Can you use this or should I do something different? Sorry :/

Openness to Experience/Intellect (Your percentile: 84)

I don't think I can use these scores. However, I made it so that you don't need a pen. There are [] in my post to put numbers, and I included them everywhere you would need them to help compute your score as you go. So just quote my post and do it in the edit field..

4. Reverse scoring means that, for example, disagree strongly becomes agree strongly, and so on.

5. 1. [4] Is talkative
2. [2] Tends to find fault with others
3. [3] Does a thorough job
4. [2] Is depressed, blue
5. [4] Is original, comes up with new ideas
6. [2] Is reserved
7. [4] Is helpful and unselfish with others
8. [4] Can be somewhat careless
9. [3] Is relaxed, handles stress well
10. [5] Is curious about many different things
11. [4] Is full of energy
12. [1] Starts quarrels with others
13. [4] Is a reliable worker
14. [3] Can be tense
15. [4] Is ingenious, a deep thinker
16. [4] Generates a lot of enthusiasm
17. [5] Has a forgiving nature
18. [4] Tends to be disorganized
19. [3] Worries a lot
20. [4] Has an active imagination
21. [2] Tends to be quiet
22. [4] Is generally trusting
23. [3] Tends to be lazy
24. [3] Is emotionally stable, not easily upset
25. [4] Is inventive
26. [2] Has an assertive personality
27. [3] Can be cold and aloof
28. [2] Perseveres until the task is finished
29. [3] Can be moody
30. [5] Values artistic, aesthetic experiences
31. [2] Is sometimes shy, inhibited
32. [4] Is considerate and kind to almost everyone
33. [2] Does things efficiently
34. [3] Remains calm in tense situations
35. [2] Prefers work that is routine
36. [4] Is outgoing, sociable
37. [2] Is sometimes rude to others
38. [2] Makes plans and follows through with them
39. [3] Gets nervous easily
40. [5] Likes to reflect, play with ideas
41. [1] Has few artistic interests
42. [3] Likes to cooperate with others
43. [4] Is easily distracted
44. [4] Is sophisticated in art, music, or literature
ok, i didn't know what reverse scoring meant, so i'm just gonna post this for now. as i'm re-doing this and still doing it in a long, dumb way, i'm laughing at the "does things efficiently". Maybe 2 was generous, hahah!

EDIT: I'm a strong extrovert
I have a slight iNtroversion preference
I have a slight Feeling preference
I have a strong Perceiving preference

6. Originally Posted by nicolita
ok, i didn't know what reverse scoring meant, so i'm just gonna post this for now. as i'm re-doing this and still doing it in a long, dumb way, i'm laughing at the "does things efficiently". Maybe 2 was generous, hahah!
Awesome, I am going out now but will work this out later.

7. Here are my scores:

Extroversion: 18 / 8 = 2.25
Agreeableness: 31 / 9 = 3.44
Conscientiousness: 23 / 9 = 2.56
Neuroticism: 22 / 8 = 2.75
Openness: 48 / 10 = 4.8

Women
E/I = .08*N - .38*E - .04*O - .03*A - .02*C = .22 - .855 - .192 - .1032 - .0512 = -0.9814
S/N = .16*N + .09*E + .41*O - .01*A - .04*C = .44 + .2025 + 1.968 - .0344 - .1024 = +2.4737
T/F = .15*N - .01*E - .06*O + .46*A - .39*C = .4125 - .0225 - .288 + 1.5824 - .9984 = +0.6860
J/P = .12*N + .00*E + .18*O + .11*A - .55*C = .33 + 0 + .864 + .3784 - 1.408 = +0.1644

As far as my preferences actually go, it's:

Average Introvert (amicable)
Very high iNtuitive
Average Thinking w/ some developed F-style traits
Solid Perceiver

If I listed the four functions in order of typical scoring, it would be NPIT.

The Agreeableness score is interesting, it scales here a lot into T/F. I have issues with some of the questions (such as "sometimes is rude to others") if an attempt is made to convert them to MBTI, because interestingly I think think function type matters and you're going to find Fi types who are more rude and Fe who are less rude, and then you get your T types in the middle area and then ranging into rude... but why isn't someone rude or why are they rude? The motivation would reflect more on preference than this kind of broad observational point. Agreeableness seems to deal more with surface level behavior, not preference. I guess the correlation value is supposed to cover this, though.

8. Originally Posted by mingularity
I recently mentioned in another thread that it should be possible to compute your MBTI score from your Big 5 score based on published Big 5 / MBTI correlations, which are remarkably high. This may be useful for those who aren't sure about their MBTI type and would like to try to get at it from a different angle. In this thread I will provide a legal version of the Big 5, and will try to work out how to convert the Big 5 score to your MBTI score in a reasonable way. Figuring out the best way to do the conversion is a work in progress. Once I / we are satisfied with the method, I will implement a javascript version that scores it for you - automagic MBTI via Big 5. Also, I used the following references to make this happen:

• McCrae, R. & Costa, P. (1989). Reinterpreting the Myers-Briggs Type Indicator From the Perspective of the Five-Factor Model of Personality. Journal of Personality.
• Oliver, J., Naumann, L. & Soto, C. (2008). Paradigm Shift to the Integrative Big Five Trait Taxonomy. In Handbook of Personality, 3rd ed.

Step 1: Take the Big 5

Step 2: Score the Big 5

Do not read this section before taking the Big 5!

Step 3: Convert Big 5 to MBTI

For my first attempt I propose the most obvious thing - each MBTI preference is a linear combination of the Big 5 Factor scores. A score below 0 is either E, S, T or J, while a score above 0 is either I, N, F or P. I have not thought about how to interpret the magnitudes yet, although it should be possible. It would be nice to use only the significant correlations, but in order to make this work we need them all (for now). So, perform the following calculation:

HTML Code:
```Men
E/I =  .05*N - .34*E + .15*O + .10*A + .17*C
S/N =  .07*N + .06*E + .61*O - .27*A - .15*C
T/F = -.11*N + .22*E + .01*O + .25*A - .16*C
J/P = -.10*N + .11*E + .04*O - .10*A - .34*C
Women
E/I =  .08*N - .38*E - .04*O - .03*A - .02*C
S/N =  .16*N + .09*E + .41*O - .01*A - .04*C
T/F =  .15*N - .01*E - .06*O + .46*A - .39*C
J/P =  .12*N + .00*E + .18*O + .11*A - .55*C```
If any brave souls who are sure of their type will now try this out, I'll be able to evaluate how much or little I messed this up.. ^_^
Mingularity, I try not to be disagreeable on this forum (ahem, high A score on the Big 5), but the algorithms make no sense. Think about it. If you have to factor in the Big 5's extroversion into someone's S/N score, that score is not a valid measure of S/N. You're saying you can figure out whether someone's S or N by taking 16% of a measure of their neuroticism, 9% of a measure of their extroversion, adding a large chunk of how open they are, and subtracting small figures based on how agreeable or conscientious they are...that gives you a reliable measurement of sensing or intuition? I argue that if it does, then it's by chance, and not because those algorithms are valid.

So, basically, don't forget to figure out the statistical significance of your findings.

9. ^ Significance levels are arbitrary. The correlations still carry information. The key question is about power, not significance. Keeping them in increases power because it keeps all the information around, which means we are using all the data from all the subjects.

The Big 5 is a high dimensional rotation of the MBTI - all variables do in fact correlate significantly. The question is how big of a sample would you need to achieve standard significance levels.

10. There's no way I'm converting that entire list by hand and calculation. I'm just finding a random big 5 test on the internet and will edit with results.

Extraversion 2.5
27
Extraversion reflects how much you are oriented towards things outside yourself and derive satisfaction from interacting with other people.
Conscientiousness 4.2
83
Conscientiousness reflects how careful you are, both in respect to orginization and rules.
Neuroticism 2.7
37
Neuroticism is the tendancy to experince negative emotions.
Agreeableness 2.8
7
Agreeableness reflects how much you like and try please others.
Openness 4.5
71
Openness reflects how much you seek out new experinces.

Hm, I seem unusaully high on conscientiousness for an ITP.

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