Did you ever wonder how researchers determine levels of confidence? Typically this research is perform using a population of college students volunteer to take part in psychological tests (sometimes a requirement for a psychology course). To measure confidence, students take a general knowledge test and estimate how well they did. Most of the students are not very accurate at guessing their performance on the tests. Typically 40-50% typically are over confident, and 30 to 40 % are under confident, and the small remaining percentage accurately estimate how well they have answered the questions.
Of course the whole purpose of the test is not to find out how many over confident students exist, but to find the correlation between over or under confidence and some other trait. Sometimes populations are chosen based on this other trait, such as research on gender differences in grades for the same major. These studies reveal that men on the average are over confident; while women o are under confident. [1]
Often research includes additional personality assessments tests to determine personality traits that lead to overconfidence. Assessments based on the five factor model (commonly called the “Big Five”) are used with great frequency. These five factors are: openness to experience, conscientiousness, extraversion, agreeableness, and neuroticism. The acronym OCEAN is used to make them easy to remember.
According to research combining the test of confidence and a five factor analysis, high scores in extraversion significantly predicted overconfidence. Of course, that doesn’t mean that all extroverts are over confident and introverts are under confident, However, a greater chance exists of these traits appearing together, even though it is a small one.[2] There is also a mild correlation between agreeableness and overconfidence. The people who rank higher in both extraversion and agreeableness showed the most significant correlation to being over confident compared to others. [3]
What you must realize first is that the five factor analysis is almost always a self-reported test.[4] It is not surprising to see extraversion correlated with over-confidence, because the five factor analysis is almost always a self-reported test.[4]. Extraverts tend to measure themselves higher in confidence, In actuality, their scores were lower than they predicted on tests of general knowledge. [5] Their inaccuracy tended to be biased to make them look better rather than make them look worse.
So what does agreeableness have to do with being overconfident? It would seem odd that students that characterize themselves as being friendly, cooperative, good-natured, sociable and nurturing would also inflate reports of their abilities. Agreeableness is seen as a positive characteristics. Perhaps people who want to appear better to others grade themselves higher in the area of agreeableness, even if they aren’t as agreeable as the students sitting next to them. Perhaps they even believed their own inaccurate report of themselves. It is easy to do when the rest of us take these self-reported qualities at face value without examining them.[6]
Many researchers have duplicated the finding that women are more likely to show less confidence than men. Women are told if they want to make their mark in any field they need to believe in themselves and show confidence like men do.
One of the traits of leaders that make people want to follow them is that they exude confidence. They seem sure of themselves as if they know their way around and have a plan for where they are going. One of the traits that people dislike about their bosses is that they seem “sure of themselves.” According to 2014 Gallup poll, t
Transformational leadership is a theory based on leaders with a set of skills that inspire followers (typically employees) to value their contribution and therefore work harder. It seems like the perfect answer to increasingly competitive nature of business in a global community. But does it work out as well as it seems to in theory?
People of high charisma are not immune to personal attacks. When there is severe criticism or antagonism leveled at them, they may call on their skill to change the desires of their followers to match their own. Often the critical or antagonistic person is dealt with by the followers not the leader.
Stable personality traits are those which appear throughout most of life. As innate, or inborn traits they are already part of the personality in childhood and become notable characteristics or patterns of behavior in adulthood. However, a person’s perceived level of charisma does not seem to be stable. This is not necessarily because behaviors that increase your ability to influence others can be taught and practiced (similar to taking acting lesson). In studies in which managers were provided with this kind of coaching, changes occurred but these were minimal compared to the difference that already existed between the most and least charismatic people in the group.
We see political leaders that have been coached to appeal to the masses on television. They carry themselves erect (confident in the clothes, hair and makeup that their stylist has spent hours on). They smile warmly and expressively, acknowledging associates they recognize in the crowd (who may or may not exist). They speak with authority (having spent many hours listening to their own voice with the assistance of a coach). However, if you want to appeal as a leader that is actually present with a group of people, a different set of skills can make or break your ability to lead. You must be able to identify with the group you are speaking to and show that you are trustworthy and competent.
Look though recent articles on leadership and you will find that creativity to be in high demand. IBM’s Institute for Business Value conducted a survey of 1,500 chief executives and discovered that creativity had risen to top as the most valuable attribute of a leader. The ability to generate new idea, and solve problems creatively has become the new competency that is supposed to ensure the success of a business in tight economic times. 
Ask the average Joe on the street what makes a good leader and a frequent answer will be high confidence. But that is only part of the equation. 
