Dunning-Kruger
The effect occurs because the competence needed to assess one's own skill in a domain requires the same competence as the task itself: those who don't know enough can't know what they don't know.
The Effect Curve
Knowledge in a domain tends to follow a confidence pattern with four stages:
- Novice's peak of confidence: with minimal knowledge, the person doesn't know what they don't know, and their confidence is high.
- Valley of despair: as they delve deeper into the domain, the person discovers its real complexity, and their confidence drops sharply.
- Slope of enlightenment: with more experience, confidence rises gradually and in a calibrated way.
- Plateau of sustainability: the expert's confidence matches their real competence. It is lower than the initial peak but stable.
Relevance in Agile Teams
The Dunning-Kruger effect appears in several contexts of agile management:
- Estimation: teams with little experience in a type of task tend to underestimate its complexity because they are unaware of the risks they have not yet experienced.
- AI adoption: teams in the early stages of adopting AI tools often overestimate their ability to handle outputs safely because they have not yet experienced the ways in which AI fails.
- Agility adoption: the enthusiasm of the first sprints (the novice peak) can give way to frustration when the team discovers the true complexity of cultural and organizational change.
Relationship with ShuHaRi
The Shu-Ha-Ri learning framework describes a path that shares elements with the Dunning-Kruger curve: the *shu* stage of faithfully following the rules is the right response to the novice peak. Confidence matched to one's actual level of competence comes with accumulated experience.
Common mistake
Using Dunning-Kruger as an argument to invalidate the opinions of those who know less. The effect describes a statistical tendency, not a universal rule for every individual. Using the concept to dismiss the perspectives of less experienced people is a form of authority bias disguised as cognitive rigor. The value of diverse perspectives in agile teams does not require everyone to have the same level of experience.
References
- Kruger, Justin; Dunning, David. (1999). "Unskilled and Unaware of It: How Difficulties in Recognizing One's Own Incompetence Lead to Inflated Self-Assessments". Journal of Personality and Social Psychology, 77(6), pp. 1121-1134.
See also
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