How Scoring Works | Open MBTI

Scoring Overview

Our test uses the Open Extended Jungian Type Scales (OEJTS), a public-domain assessment validated with over 25,000 participants. The scoring is transparent and reproducible.

32

Questions

4

Dimensions

16

Possible Types

1

Question Structure

Each question presents two opposing traits. You indicate your preference on a 5-point scale:

Example Question:

Energized by socializing

Energized by solitude

Score	Meaning
`1`	Strongly prefer left trait
`2`	Somewhat prefer left trait
`3`	No preference (neutral)
`4`	Somewhat prefer right trait
`5`	Strongly prefer right trait

2

Dimension Calculation

The 32 questions are divided into 8 questions per dimension. We sum your answers for each dimension:

E–I Dimension

Questions: 3, 7, 11, 15, 19, 23, 27, 31

4 3 5 2 4 3 4 3 = 28

S–N Dimension

Questions: 4, 8, 12, 16, 20, 24, 28, 32

2 3 4 2 3 4 3 4 = 25

T–F Dimension

Questions: 2, 6, 10, 14, 18, 22, 26, 30

3 2 4 3 2 3 4 3 = 24

J–P Dimension

Questions: 1, 5, 9, 13, 17, 21, 25, 29

4 5 3 4 5 4 3 4 = 32

Score range: Each dimension score ranges from 8 (all 1s) to 40 (all 5s). The midpoint is 24.

3

Type Determination

For each dimension, we compare the score to the threshold of 24:

E–I Score: 28

E

I

8 24 40

28 > 24 → I

S–N Score: 25

S

N

8 24 40

25 > 24 → N

T–F Score: 24

F

T

8 24 40

24 ≤ 24 → F (tie goes left)

J–P Score: 32

J

P

8 24 40

32 > 24 → P

Final Type:

INFP

4

Percentage Calculation

We convert raw scores to percentages to show preference strength:


Right trait % = ((score - 8) / 32) × 100

Dimension	Score	Calculation	Result
E–I	28	`(28-8)/32 × 100`	62.5% I
S–N	25	`(25-8)/32 × 100`	53.1% N
T–F	24	`(24-8)/32 × 100`	50.0% F
J–P	32	`(32-8)/32 × 100`	75.0% P

Open Source

Our scoring algorithm is completely transparent. You can inspect the source code:

View on GitHub

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