Thinkhint

Personality experiment journal

A test result is a hypothesis about you. This journal turns it into a small experiment: make predictions based on your type, observe what actually happens and weigh the evidence.

How the experiment works

Choose your likely type and one alternative. Each week, write down a few predictions based on each type's description, such as how you'll react to criticism or a deadline. Over the week, record what actually happened. At the end of four weeks, count which type's predictions matched your behavior more often.

Weekly prediction log

DaySituation expectedPrediction if Type APrediction if Type BWhat happenedBetter match
Monday(write here)(write here)(write here)(write here)(write here)
Wednesday(write here)(write here)(write here)(write here)(write here)
Friday(write here)(write here)(write here)(write here)(write here)
Weekend(write here)(write here)(write here)(write here)(write here)

Example entry

FieldExample
SituationManager gives critical feedback on a report
Prediction if Type 1Feel irritated at the error and fix it immediately
Prediction if Type 6Worry about what the feedback means for my position
What happenedSpent the evening wondering if my job was at risk
Better matchType 6

Four-week summary

MeasureType AType B
Predictions matched(write here)(write here)
Strongest evidence for(write here)(write here)
Strongest evidence against(write here)(write here)
Outside feedback(write here)(write here)

Why this approach helps

Reading a description invites confirmation bias: you notice what fits. Making predictions before events, and recording outcomes honestly, forces a fairer comparison. Adding a friend's view helps too, because personality research shows that others notice behavior we may overlook in ourselves.

Tips for a fair experiment

  • Write predictions before situations happen.
  • Record surprising behavior, not only matches.
  • Keep the alternative type genuinely in play.
  • Ask someone close to you to review your summary.

Journal questions

How can I test whether my Enneagram type is right?+

Make predictions based on your type and an alternative, then record what actually happens.

How long should I keep the journal?+

Four weeks usually provides enough situations to compare.

What if both types match equally?+

Look at core fears and ask for outside feedback, or consider a wing connection.

Can I use this journal for other personality models?+

Yes, the prediction method works for any framework.

Continue exploring

Take the next step with structured self-reflection

Use the test as a starting point for noticing everyday patterns and deciding what you may want to explore further.