LEVEL C · THEORY-INFORMED ORIGINAL

16 Personality Type Test — Jungian Style

Inward Atlas wrote the item set using an established conceptual framework. The resulting score is useful for structured reflection but is not a validated substitute for the source theory or a professional instrument.

CONSTRUCT

What it measures

A deeper 64-question exploration of four familiar type preferences: Extraversion–Introversion, Sensing–Intuition, Thinking–Feeling, and Judging–Perceiving.

FORMAT

What you complete

64 scored items across 4 displayed dimensions

SCORING

How the score is made

Declared Likert items are summed after reverse-keying where specified, then transformed to a 0–100 display scale. The display is a response score, not a population percentile, unless an official lookup conversion is explicitly named.

RELIABILITY

Consistency evidence

No reliability coefficient has been estimated from Inward Atlas users for this online administration. Where a source link is provided, consult it for evidence about the original instrument or source scale.

VALIDITY

What the evidence supports

Inward Atlas wrote the item set using an established conceptual framework. The resulting score is useful for structured reflection but is not a validated substitute for the source theory or a professional instrument. Inward Atlas has not established psychometric validity for this implementation.

NORMS

How values should be read

No representative Inward Atlas norm sample is applied. Displayed 0–100 values are transformed response scores, not percentile ranks or claims about comparison with a population.

Source and implementation record

Commercial-use original wording. Inward Atlas reviewed OpenPsychometrics OJTS/OEJTS as a possible source but did not use or adapt its items because those materials are licensed CC BY-NC-SA 4.0. This instrument uses the broad historical four-preference typology only as conceptual inspiration and requires empirical calibration before stronger psychometric claims.

Source
Inward Atlas original Jungian-style four-preference item set
License
Not separately recorded
Source version
Inward Atlas original item set v1
Review status
Source checked 2026-08-27
Definition version
Schema 1 · jungian-16-type-original-64-v1

Limitations shown with the assessment

  • This is not the Myers-Briggs Type Indicator (MBTI) and is not affiliated with or endorsed by The Myers-Briggs Company.
  • The four-letter code is a shorthand derived from four original Inward Atlas preference scales; it is not a diagnosis or a claim that people belong to fixed natural categories.
  • Scores close to the midpoint can change sides with relatively small differences in answers and should be interpreted as balanced preferences.
  • This Level C item set has not yet been normed or psychometrically validated on an Inward Atlas user sample.

Implementation notes

  • All wording is original to Inward Atlas and is not copied from MBTI, 16Personalities, OJTS, or OEJTS questionnaires.
  • Each axis contains eight direct-keyed and eight reverse-keyed statements.
  • Midpoint letter splits are a product heuristic and are not presented as validated diagnostic cutoffs.

Use the assessment

Open 16 Personality Type