Answer:
This can include the certainty one feels in her own ability, performance, level of control, or chance of success.
Step-by-step explanation:
Overconfidence is thinking so highly of oneself beyond the capacity of the person. It is trusting in one's ability beyond what can be offer or given. Overconfidence makes one neglect corrections or take heed to instructions that is outside of what is known even though it is correct.
It doesn't allow for growth beyond the scope of what has been known. Observations made by people are always not relevant to someone who is over confident in himself this could lead to such persons committing more errors than expected.