We used to ask people to rank themselves on the page-jones scale of expertise (detailed here https://medium.com/@helen.taner.nc/how-to-estimate-your-software-en

We used to ask people to rank themselves on the page-jones scale of expertise (detailed here https://medium.com/@helen.taner.nc/how-to-estimate-your-software-engineering-expertise-67e6ba9a6d9f https://medium.com/@helen.taner.nc/how-to-estimate-your-soft...) Generally, people who ranked themselves as Masters were subject to the dunning Kruger effect (and/or arrogance)