IDNATake the test
The project

Before you beat the market, understand the person making the decisions.

IDNA is a research project on how biases shape investment decisions, and an assessment built from it. It measures seven biases across 56 statements and places you in one of sixteen archetypes, grouped into four families.

7behavioural biases measured
56statements, eight per bias
16archetypes in four families
~8 minto complete
The question

Why do sensible people make predictable mistakes with money?

Standard economic theory assumes investors weigh evidence and act in their own interest. Behavioural economics shows something else: decisions are steered by mental shortcuts that operate quietly, feel like judgment, and repeat.

This project asks whether those shortcuts cluster. If they do, a person's pattern of biases can be described as a type rather than a list of individual errors, and knowing your own pattern becomes something you can act on.

Hypothesis

Behavioural biases do not appear at random. They cluster into recognisable profiles, and those profiles can be identified with a short self-report instrument.

FieldNeuroeconomics · Behavioural finance
How a type is assigned

Two biases place you. Two more separate you.

01
You answer 56 statementsEach on a five-point scale from disagree to agree. Reverse-worded items are inverted before scoring.
02
Seven scores are producedOne per bias, normalised so they can be compared with each other and across respondents.
03
The two highest become your core biasesThese decide which of the four families you belong to.
04
The two lowest become your anti-biasesThese separate you from the other members of your family. Two people can share a core pair and still be different archetypes.
05
A profile that is flat is also a resultNo strong highs and no strong lows is The Market Sage. Moderate on everything is The Disciplinarian.
Your data

What is collected, and what is not

Before the statements you are asked your age, sex, country, and how much investing experience you have. These make it possible to look at whether bias profiles differ across groups, so all of them, along with your consent, are required to take the assessment.

No name, email address or IP address is stored. Answers cannot be traced back to you, which also means a submitted response cannot be withdrawn afterwards.

CollectedAge · sex · country · investing experience · your 56 answers
Not collectedName · email · IP address · anything that identifies you
Used forA secondary-school research project, and refining the instrument
Honest limitations

What this cannot tell you

It is self-reportYou answer as you believe you behave. That is not always how you behave when money is actually at risk.
It is not a diagnosisNo clinical or financial claim is being made, and nothing here is investment advice.
The sample is not representativeRespondents arrive through the internet, which skews young and interested in the subject.
Types are descriptions, not cagesA type is a summary of a moment. Retake it in a year, especially after a market fall, and the profile may move.
Find out which of the sixteen you are.56 statements, about eight minutes. Anonymous, and free.
Take the assessment