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What does this data show?

Open item-level analytics from the same bank that powers the live assessments.

This page publishes aggregate statistics on assessment items: which questions discriminate traits best, how traits correlate, test quality summaries, and IRT calibration views. Nothing here is behind a login; it is the same transparency we describe in our philosophy.

Use the tabs to compare best and worst items per trait, inspect test stats across assessments, or review accuracy and IRT curves. Select an assessment to scope the tables to that instrument, or compare two assessments side by side.

We publish this so researchers, typologists, and curious test-takers can see how scores are built instead of trusting a black box. The item bank is living data: weak items are removed, strong items are weighted more heavily, and the whole system improves with every response.

If you are conducting research, the statistics on this page are published for open review. You do not need to ask permission to read what you see here.

Our philosophyTake an assessment
Best ItemsWorst Items
Test QualityTest AccuracyTest IRTTest Stats
Trait Correlation

Worst Items

Bottom 5 lowest-quality items per trait, ranked by quality index (higher is worse).

Bottom 5Bottom 10Bottom 20

BOTTOM 5 - FE items for the Jungian Function Assessment

The worst of 113 items filtered from 37,021 Total Trait Answers

Item
Quality Index
  1. 1

    You may be viewed as too nice by people who don't understand you.

    C+
  2. 2

    You’re the type to frame your own needs in a way that sounds convenient for others, so they don’t feel put on the spot.

    C+
  3. 3

    You enjoy deeply understanding someone and want everyone to be understood.

    C+
  4. 4

    You tend to love passionately and fall deeply.

    C+
  5. 5

    You feel confused when people are offended that you didn’t join a social activity.

    Reversed
    C+

BOTTOM 5 - FI items for the Jungian Function Assessment

The worst of 165 items filtered from 37,059 Total Trait Answers

Item
Quality Index
  1. 1

    When someone pressures you to conform, you resist if it feels wrong.

    D+
  2. 2

    You can spend a lot of your time examining what matters to you.

    C-
  3. 3

    When someone crosses a personal boundary, you feel compelled to act.

    C
  4. 4

    You easily change your stance to fit in.

    Reversed
    C
  5. 5

    You tend to know what side you're on and find it difficult picking neutral stance about something.

    C

BOTTOM 5 - NE items for the Jungian Function Assessment

The worst of 86 items filtered from 37,020 Total Trait Answers

Item
Quality Index
  1. 1

    You think that there's still a lot left to explore and discover in this world.

    C
  2. 2

    You tend to have thoughts that jump around.

    C+
  3. 3

    You tend to create far off connections of distant ideas that people can mistake as random.

    C+
  4. 4

    You feel that having too many options is paralyzing, not freeing; you prefer a limited set of clear choices.

    Reversed
    C+
  5. 5

    You like to quickly test ideas and accept mistakes and fixing things as you go.

    C+

BOTTOM 5 - NI items for the Jungian Function Assessment

The worst of 105 items filtered from 37,018 Total Trait Answers

Item
Quality Index
  1. 1

    You're the type of person who just deals with things as they happen to you.

    Reversed
    C
  2. 2

    You effectively can communicate the “why” behind decisions so people stay aligned.

    C
  3. 3

    You don’t need to “force” yourself to analyze; your mind just starts connecting patterns on its own.

    C+
  4. 4

    You are known to use poetic symbolism, metaphors or generalization in your communication.

    C+
  5. 5

    You tend to understand how an idea concludes before you've worked out all the details.

    C+

BOTTOM 5 - SE items for the Jungian Function Assessment

The worst of 178 items filtered from 37,022 Total Trait Answers

Item
Quality Index
  1. 1

    You can spend a lot of your time interacting with your environment.

    C
  2. 2

    You sometimes feel that an idea isn’t fully real until it has been tested in practice.

    C
  3. 3

    You value direct experience more than secondhand information.

    C+
  4. 4

    You are the type to handle important things in person.

    C+
  5. 5

    You are glory seeking and never fail to celebrate the moments when its found.

    C+

BOTTOM 5 - SI items for the Jungian Function Assessment

The worst of 210 items filtered from 37,123 Total Trait Answers

Item
Quality Index
  1. 1

    When you remember a mistake, you adjust your behavior to avoid it repeating.

    C-
  2. 2

    You pride your self in the diligence and care to make sure your work is free from mistakes.

    C
  3. 3

    When you smell a familiar scent, a specific memory can come back vividly.

    C
  4. 4

    You do not trust your memory enough to use it as a guide.

    Reversed
    C+
  5. 5

    When you are stressed, you gravitate toward familiar comforts and routines.

    C+

BOTTOM 5 - TE items for the Jungian Function Assessment

The worst of 110 items filtered from 37,053 Total Trait Answers

Item
Quality Index
  1. 1

    You set the same standards for yourself as you do others.

    C-
  2. 2

    You believe that the ends justify the means.

    C
  3. 3

    You measure a good day more by whether you stayed true to yourself than by how many tasks you completed.

    Reversed
    C
  4. 4

    You’re the type who likes to be seen as the person others can always turn to, and you informally arrange your life so that stays true.

    Reversed
    C
  5. 5

    You are compelled to better or manage the systems around you

    C

BOTTOM 5 - TI items for the Jungian Function Assessment

The worst of 212 items filtered from 36,987 Total Trait Answers

Item
Quality Index
  1. 1

    You're satisfied with solutions that are good enough.

    Reversed
    C-
  2. 2

    You often test whether an idea holds up in extreme or edge cases.

    C
  3. 3

    You sometimes work longer on your own to build a neat mental model before you want to act on it.

    C
  4. 4

    You prioritize logical cleanliness over convenience.

    C
  5. 5

    When two people disagree, you try to locate the exact logical divergence.

    C