The reason they give is based on self evaluation. People are particularly bad at self evaluation. Keep in mind, most people don't know what their IQ is. And m

The reason they give is based on self evaluation. People are particularly bad at self evaluation. Keep in mind, most people don't know what their IQ is. And most don't consider themselves to posses less intelligence as they don't know what more intelligence feels like. See this video for relationship between job expectation and IQ: https://www.youtube.com/watch?v=fjs2gPa5sD0 https://www.youtube.com/watch?v=fjs2gPa5sD0