Self-Assessment

    Dunning-Kruger Effect

    🇳🇴Dunning-Kruger-effekten

    Definition

    The Dunning-Kruger effect describes how people with low competence in an area often overestimate their own ability, while experts may underestimate themselves. The less you know, the less you understand what you don't know.

    Real-world example

    A beginner in chess may feel confident that they understand the game after learning the rules, without realizing the depth of strategic thinking required. After months of playing and losing, they begin to understand how little they actually know.

    In the workplace, new employees can be surprisingly confident in their opinions, while experienced colleagues are more cautious because they've seen how complex the problems really are.

    Supplementary perspective

    The effect is not about intelligence, but about metacognition – the ability to assess one's own knowledge. It's only when you learn more that you understand the extent of what you don't know. Socratic wisdom: 'I know that I know nothing.'

    Practical advice

    Recognize

    • Ask: 'How much experience do I actually have with this?'
    • Be especially careful with strong opinions in areas where you're new.

    Counteract

    • Actively seek feedback from people with more experience.
    • Try to explain concepts to others – this reveals gaps in understanding.
    • Keep a 'learning journal' where you note what you discover you didn't know.

    Ethical use

    • Create safe environments where people can admit uncertainty without losing face.
    • Use structured assessments rather than self-reporting in recruitment.

    Related biases