Experts measure their competence based on “how much” they know or can do. Believing they will never know enough, they fear being exposed as inexperienced or unknowledgeable.

Soloists feel as though asking for help will reveal that they're a fraud.

It is a psychological phenomenon that reflects the belief that you’re an inadequate and incompetent failure despite evidence that indicates you’re skilled and quite successful.

They set the bar excessively high for themselves and when they fail to reach their goals, they experience major self-doubt. For this type, success is rarely satisfying because they believe they could’ve done even better.

They judge their competences based on ease and speed as opposed to their efforts. If they take a long time to master something, they feel shame.