What is self-report bias?
This bias refers to the incapability of human beings to accurately evaluate themselves.
Example of self-report bias in the hiring process.
When a candidate is asked to rate themselves on a certain personality trait, for example in a personality questionnaire, it is scientifically proven that they will either overestimate or underestimate themselves. On top of that, these answers are also prone to social desirability bias (and therefore prone to intentional faking or unintentional self-presentation).
On average, females tend to underestimate themselves while males tend to overestimate themselves (this is called The Gender Confidence Gap), which can lead to wrongfully more males going to the next step of the hiring process compared to females.