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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

Best Items

Top 5 highest-quality items per trait, ranked by quality index (lower is better).

Top 5Top 10Top 20

TOP 5 - FE items for the Jungian Function Assessment

The best of 113 items filtered from 49,983 Total Trait Answers

Item
Quality Index
  1. 1

    You enjoy spending your time taking care of others and helping them.

    S-
  2. 2

    You naturally recognize others' needs and try to cater to them.

    A+
  3. 3

    You try to help people to the point where you begin to forget taking care of your own needs.

    A+
  4. 4

    You often get too invested in the emotional troubles of others.

    A
  5. 5

    You naturally know how to take care of someone's emotional needs.

    A

TOP 5 - FI items for the Jungian Function Assessment

The best of 165 items filtered from 50,021 Total Trait Answers

Item
Quality Index
  1. 1

    When advice conflicts with your feelings, you follow your feelings.

    B+
  2. 2

    You act based on logic even when it feels wrong.

    Reversed
    B+
  3. 3

    You often ask yourself, “Does this feel right to me?” before making a choice

    B+
  4. 4

    You feel intense shame when you act against your own values, even in small, silly moments.

    B
  5. 5

    You sometimes turn down good opportunities because they don’t feel aligned with who you are.

    B

TOP 5 - NE items for the Jungian Function Assessment

The best of 86 items filtered from 49,982 Total Trait Answers

Item
Quality Index
  1. 1

    You like to mix things up just to see what will happen.

    A
  2. 2

    You're the type to try out new ideas regardless of the risk involved.

    A
  3. 3

    You tend to try unrealistic or impractical ideas just to see if it will work.

    A
  4. 4

    You are excited by new opportunities and always give them a chance.

    A-
  5. 5

    You're the type to try out new ideas even in dire or high-stakes situations.

    A-

TOP 5 - NI items for the Jungian Function Assessment

The best of 105 items filtered from 49,980 Total Trait Answers

Item
Quality Index
  1. 1

    You prepare ahead of time to make sure things follow your plans.

    A-
  2. 2

    You just do things without knowing where it's all leading to.

    Reversed
    A-
  3. 3

    You're kind of careless when it comes to plans and planning.

    Reversed
    B+
  4. 4

    You don't really care or overthink about the future too much as you'll deal with it when the time comes.

    Reversed
    B+
  5. 5

    You think about how today’s decisions will look five years from now.

    B+

TOP 5 - SE items for the Jungian Function Assessment

The best of 178 items filtered from 49,984 Total Trait Answers

Item
Quality Index
  1. 1

    You have a lot of physical energy and need an outlet to relieve it.

    A+
  2. 2

    You seize the opportunities that the moment brings while never overthinking it.

    A+
  3. 3

    You hesitate when quick action is required.

    Reversed
    A+
  4. 4

    You naturally tend to keep yourself busy with physical activity.

    A
  5. 5

    You feel energized by movement, action, or sensory stimulation.

    A

TOP 5 - SI items for the Jungian Function Assessment

The best of 210 items filtered from 50,085 Total Trait Answers

Item
Quality Index
  1. 1

    You can easily maintain the routines you have set for yourself.

    A
  2. 2

    You can spend a lot of your time building a stable routine for daily life.

    A
  3. 3

    You tend to keep your room clean most of the time.

    A
  4. 4

    You prefer doing things the "old fashion way" as you find it to be more consistent.

    A-
  5. 5

    You are the type that likes to write everything down, store information and keep accurate records of things.

    A-

TOP 5 - TE items for the Jungian Function Assessment

The best of 110 items filtered from 50,015 Total Trait Answers

Item
Quality Index
  1. 1

    You are confident in your ability to tell others what to do.

    A+
  2. 2

    You usually think first about people’s feelings and values, not about efficiency or output.

    Reversed
    A
  3. 3

    You care more about whether something is morally or emotionally right than whether it is profitable.

    Reversed
    A
  4. 4

    You are naturally put up to leadership roles and can manage it effectively.

    A-
  5. 5

    Given the choice between softening your words and being blunt, you would be blunt every time.

    A-

TOP 5 - TI items for the Jungian Function Assessment

The best of 212 items filtered from 49,949 Total Trait Answers

Item
Quality Index
  1. 1

    You like to break things apart to their components to understand how it works

    B+
  2. 2

    You can spend a lot of your time re-checking logic even after a solution works.

    B
  3. 3

    You naturally break ideas apart to see how the pieces relate to each other.

    B
  4. 4

    You care more about logical precision than about being efficient.

    B
  5. 5

    You enjoy subjects where the main goal is to think things through, like math or logic puzzles.

    B-