The concept of self-confidence  self-assurance in one's personal judgment, ability, power, etc. One's self confidence increases from experiences of having mastered particular activities. It is a positive belief that in the future one can generally accomplish what one wishes to do. Self-confidence is not the same as self-esteem,
 which is an evaluation of one's own worth, whereas self-confidence is 
more specifically trust in one's ability to achieve some goal, which one
 meta-analysis suggested is similar to generalization of self-efficacy. Abraham Maslow
 and many others after him have emphasized the need to distinguish 
between self-confidence as a generalized personality characteristic, and
 self-confidence with respect to a specific task, ability or challenge 
(i.e. self-efficacy).  Self-confidence typically refers to general 
self-confidence. This is different from self-efficacy, which 
psychologist Albert Bandura has defined as a “belief in one’s ability to succeed in specific situations or accomplish a task”
 and therefore is the term that more accurately refers to specific 
self-confidence. Psychologists have long noted that a person can possess
 self-confidence that he or she can complete a specific task 
(self-efficacy) (e.g. cook a good meal or write a good novel) even 
though they may lack general self-confidence, or conversely be 
self-confident though they lack the self-efficacy to achieve a 
particular task (e.g. write a novel). These two types of self-confidence
 are, however, correlated with each other, and for this reason can be 
easily conflated.
History
Ideas
 about the causes and effects of self-confidence have appeared in 
English language publications describing characteristics of a 
sacrilegious attitude toward God, the character of the British empire, and the culture of colonial-era American society (where it seemed to connote arrogance and be a negative attribute.) 
In 1890, the philosopher William James in his Principles of Psychology
 wrote, “Believe what is in the line of your needs, for only by such 
belief is the need fulled ... Have faith that you can successfully make 
it, and your feet are nerved to its accomplishment,” expressing how 
self-confidence could be a virtue. That same year, Dr. Frederick Needham
 in his presidential address to the opening of the British Medical Journal’s
 Section of Psychology praised a progressive new architecture of an 
asylum accommodation for insane patients as increasing their 
self-confidence by offering them greater “liberty of action, extended 
exercise, and occupation, thus generating self-confidence and becoming, 
not only excellent tests of the sanity of the patient, but operating 
powerfully in promoting recovery.” In doing so, he seemed to early on suggest that self-confidence may bear a scientific relation to mental health. 
With the arrival of World War I,
 psychologists praised self-confidence as greatly decreasing nervous 
tension, allaying fear, and ridding the battlefield of terror; they 
argued that soldiers who cultivated a strong and healthy body would also
 acquire greater self-confidence while fighting. At the height of the Temperance social reform movement
 of the 1920s, psychologists associated self-confidence in men with 
remaining at home and taking care of the family when they were not 
working. During the Great Depression,
 Philip Eisenberg and Paul Lazerfeld noted how a sudden negative change 
in one's circumstances, especially a loss of a job, could lead to 
decreased self-confidence, but more commonly if the jobless person 
believes the fault of his unemployment is his. They also noted how if 
individuals do not have a job long enough, they became apathetic and 
lost all self-confidence.
In 1943, Abraham Maslow
 in his paper “A Theory of Human Motivation” argued that an individual 
only was motivated to acquire self-confidence (one component of 
“esteem”) after he or she had achieved what they needed for 
physiological survival, safety, and love and belonging. He claimed that 
satisfaction of self-esteem led to feelings of self-confidence that, 
once attained, led to a desire for “self-actualization."
 As material standards of most people rapidly rose in developed 
countries after World War II and fulfilled their material needs, a 
plethora of widely cited academic research about-confidence and many 
related concepts like self-esteem and self-efficacy emerged.
Theories and correlations with other variables and factors
Self-confidence as an intra-psychological variable
Social
 psychologists have found self-confidence to be correlated with other 
psychological variables within individuals, including saving money, how individuals exercise influence over others, and being a responsible student. Marketing researchers have found that general self-confidence of a person is negatively correlated with their level of anxiety.
Some studies suggest various factors within and beyond an 
individual's control that affect their self-confidence. Hippel and 
Trivers propose that people will deceive themselves about their own 
positive qualities and negative qualities of others so that they can 
display greater self-confidence than they might otherwise feel, thereby 
enabling them to advance socially and materially.
  Others have found that new information about an individual's 
performance interacts with an individual's prior self-confidence about 
their ability to perform. If that particular information is negative 
feedback, this may interact with a negative affective state (low 
self-confidence) causing the individual to become demoralized, which in 
turn induces a self-defeating attitude that increases the likelihood of 
failure in the future more than if they did not lack self-confidence. On the other hand, some also find that self-confidence increases a person's general well-being and one's motivation and therefore often performance.  It also increases one's ability to deal with stress and mental health.
A meta-analysis of 12 articles found that generally when 
individuals attribute their success to a stable cause (a matter under 
their control) they are less likely to be confident about being 
successful in the future. If an individual attributes their failure to 
an unstable cause (a factor beyond their control, like a sudden and 
unexpected storm) they are less likely to be confident about succeeding 
in the future.
 Therefore, if an individual believes he/she and/or others failed to 
achieve a goal (e.g. give up smoking) because of a factor that was 
beyond their control, he or she is more likely to be more self-confident
 that he or she can achieve the goal in the future.
 Whether a person in making a decision seeks out additional sources of 
information depends on their level of self-confidence specific to that 
area. As the complexity of a decision increases, a person is more likely
 to be influenced by another person and seek out additional information.
 However, people can also be relatively self-confident about what they 
believe if they consult sources of information that agree with their 
world views (e.g. New York Times for liberals, Fox News for 
conservatives), even if they do not know what will happen tomorrow.
 Several psychologists suggest that people who are self-confident are 
more willing to examine evidence that both supports and contradicts 
their attitudes. Meanwhile, people who are less self-confident about 
their perspective and are more defensive about them may prefer 
proattitudinal information over materials that challenge their 
perspectives.
Relationship to social influences
An
 individual's self-confidence can vary in different environments, such 
as at home or in school, and with respect to different types of 
relationships and situations.
 In relation to general society, some have found that the more 
self-confident an individual is, the less likely they are to conform to 
the judgments of others. Leon Festinger
 found that self-confidence in an individual's ability may only rise or 
fall where that individual is able to compare themselves to others who 
are roughly similar in a competitive environment.
 Furthermore, when individuals with low self-confidence receive feedback
 from others, they are averse to receiving information about their 
relative ability and negative informative feedback, and not averse to 
receiving positive feedback.
People with high self-confidence can easily impress others, as 
others perceive them as more knowledgeable and more likely to make 
correct judgments,
 despite the fact that often a negative correlation is sometimes found 
between the level of their self-confidence and accuracy of their claims. When people are uncertain and unknowledgeable about a topic, they are more likely to believe the testimony, and follow the advice of those that seem self-confident.
 However, expert psychological testimony on the factors that influence 
eyewitness memory appears to reduce juror reliance on self-confidence.
People are more likely to choose leaders with greater self-confidence than those with less self-confidence. Heterosexual men who exhibit greater self-confidence than other men are more likely to attract single and partnered women.
 Salespeople who are high in self-confidence are more likely to set 
higher goals for themselves and therefore more likely to stay employed. yield higher revenues and customer service satisfaction
 In relation to leadership, leaders with high self-confidence are more 
likely to influence others through persuasion rather than coercive 
means. Individuals low in power and thus in self-confidence are more 
likely to use coercive methods of influence
 and to become personally involved while those low in self-confidence 
are more likely to refer problem to someone else or resort to 
bureaucratic procedures to influence others (e.g. appeal to 
organizational policies or regulations).
 Others suggest that self-confidence does not affect style of leadership
 but is only correlated with years of supervisory experience and 
self-perceptions of power.
Variation between different categorical groups
Social scientists have found ways in which self-confidence seems to operate differently within various groups in society.
Children
In 
children, self-confidence emerges differently than adults. For example, 
Fenton suggested that only children as a group are more self-confident 
than other children.
  Zimmerman claimed that if children are self-confident they can learn 
they are more likely to sacrifice immediate recreational time for 
possible rewards in the future. enhancing their self-regulative 
capability. By adolescence, youth that have little contact with friends tend to have low self-confidence. Successful performance of children in music also increases feelings of self-confidence, increasing motivation for study.
Students
Many 
studies focus on students in school. In general, students who perform 
well have increased confidence which likely in turn encourages students 
to take greater responsibility to successfully complete tasks. Students who perform better receive more positive evaluations report and greater self-confidence. Low achieving students report less confidence and high performing students report higher self-confidence. Teachers can greatly affect the self-confidence of their students depending on how they treat them.
  In particular, Steele and Aronson established that black students 
perform more poorly on exams (relative to white students) if they must 
reveal their racial identities before the exam, a phenomenon known as 
“stereotype threat.”
 Keller and Dauenheimer find a similar phenomena in relation to female 
student's performance (relative to male student's) on math tests 
 Sociologists of education Zhou and Lee have observed the reverse 
phenomena occurring amongst Asian-Americans, whose confidence becomes 
tied up in expectations that they will succeed by both parents and 
teachers and who claim others perceive them as excelling academically 
more than they in fact are.
In one study of UCLA students, males (compared to females) and 
adolescents with more siblings (compared to those with less) were more 
self-confident. Individuals who were self-confident specifically in the 
academic domain were more likely to be happy but higher general 
self-confidence was not correlated with happiness. With greater anxiety,
 shyness and depression, emotionally vulnerable students feel more 
lonely due to a lack of general self-confidence.
 Another study of first year college students found men to be much more 
self-confident than women in athletic and academic activities.
 In regards to inter-ethnic interaction and language learning, studies 
show that those who engage more with people of a different ethnicity and
 language become more self-confident in interacting with them.
Men versus women
Barber
 and Odean find that male common stock investors trade 45% more than 
their female counterparts, which they attribute greater recklessness 
(though also self-confidence) of men, reducing men's net returns by 2.65
 percentage points per year versus women's 1.72 percentage points.
Some have found that women who are either high or low in general 
self-confidence are more likely to be persuaded to change their opinion 
than women with medium self-confidence. However, when specific high 
confidence (self-efficacy) is high, generalized confidence plays less of
 a role in affecting their ability to carry out the task.
 Research finds that females report self-confidence levels in 
supervising subordinates proportionate to their experience level, while 
males report being able to supervise subordinates well regardless of 
experience.
Evidence also has suggested that women who are more 
self-confident may received high performance evaluations but not be as 
well liked as men that engage in the same behavior. However confident women were considered a better job candidates than both men and women who behaved modestly
In the aftermath of the first wave of feminism and women's role in the 
labor force during the World War, Maslow argued that some women who 
possessed a more “dominant” personality were more self-confident and 
therefore would aspire to and achieve more intellectually than those 
that had a less “dominant” personality—even if they had the same level 
of intelligence as the “less dominant” women. However, Phillip Eisenberg
 later found the same dynamic among men.
Another common finding is that males who have low generalized 
self-confidence are more easily persuaded than males of high generalized
 self-confidence.  Women tend to respond less to negative feedback and be more averse to negative feedback than men.
 Niederle and Westerlund found that men are much more competitive and 
obtain higher compensation than women and that this difference is due to
 differences in self-confidence, while risk and feedback-aversion play a
 negligible role.
 Some scholars partly attribute the fact to women being less likely to 
persist in engineering college than men to women's diminished sense of 
self-confidence.
This may be related to gender roles, as a study found that after women who viewed commercials with women in traditional gender roles, they appeared less self-confident in giving a speech than after viewing commercials with women taking on more masculine roles. Such self-confidence may also be related to body image, as one study found a sample of overweight people in Australia and the US are less self-confident about their body's performance than people of average weight, and the difference is even greater for women than for men. Others have found that if a baby child is separated from their mother at birth the mother is less self-confident in their ability to raise that child than those mothers who are not separated from their children, even if the two mothers did not differ much in their care-taking skills. Furthermore, women who initially had low self-confidence are likely to experience a larger drop of self-confidence after separation from their children than women with relatively higher self-confidence.
Stereotype threat
Stereotype threat examines of how a social identity
 that is negatively stereotyped causes vulnerabilities in a 
stereotype-relevant situation. This concept examines factors such as 
difficulty of the task while experiencing stereotype threat,  beliefs 
about abilities, as well as the interplay of the relevance of the 
stereotype to the task.
Self-confidence in different cultures
Some
 have suggested that self-confidence is more adaptive in cultures where 
people are not very concerned about maintaining harmonious 
relationships. But in cultures that value positive feelings and 
self-confidence  less, maintenance of smooth interpersonal relationships
 are more important, and therefore self-criticism and a concern to save 
face is more adaptive. For example, Suh et al. (1998) argue that East 
Asians are not as concerned as maintaining self-confidence as Americans and many even find Asians perform better when they lack confidence.
Athletes
Many 
sports psychologists have noted the importance of self-confidence in 
winning athletic competitions. Amongst athletes, gymnasts who tend to 
talk to themselves in an instructional format tended to be more 
self-confident than gymnasts that did not.
 Researchers have found that self-confidence is also one of the most 
influential factors in how well an athlete performs in a competition.
 In particular, "robust self-confidence beliefs" are correlated with 
aspects of "mental toughness," or the ability to cope better than your 
opponents with many demands and remain determined, focused and in 
control under pressure.
 In particular, Bull et al. (2005) make the distinction between "robust 
confidence" which leads to tough thinking, and "resilient confidence" 
which involves over-coming self doubts and maintaining self-focus and 
generates "tough thinking." These traits enable athletes to "bounce back from adversity."
 When athletes confront stress while playing sports, their 
self-confidence decreases. However feedback from their team members in 
the form of emotional and informational support reduces the extent to 
which stresses in sports reduces their self-confidence.  At high levels 
of support, performance related stress does not affect self-confidence.
Measures
One 
of the earliest measures of self-confidence used a 12-point scale 
centered on zero, ranging from a minimum score characterizing someone 
who is  “timid and self-distrustful, Shy, never makes decisions, self 
effacing” to an upper extreme score representing someone who is “able to
 make decisions, absolutely confident and sure of his own decisions and 
opinions.”
Some have measured self-confidence as a simple construct divided 
into affective and cognitive components: anxiety as an affective aspect 
and self-evaluations of proficiency as a cognitive component.
The more context-based Personal Evaluation Inventory (PEI), 
developed by Shrauger (1995), measures specific self-esteem and 
self-confidence in different aspects (speaking in public spaces, 
academic performance, physical appearance, romantic relationships, 
social interactions, athletic ability, and general self-confidence 
score.
  Other surveys have also measured self-confidence in a similar way by 
evoking examples of more concrete activities (e.g. making new friends, 
keeping up with course demands, managing time wisely, etc.).
 The Competitive State Anxiety Inventory-2 (CSAI-2) measures on a scale 
of 1 to 4 how confident athletes feel about winning an upcoming match.
 Likewise, the Trait Robustness of Sports-Confidence Inventory (TROSCI) 
requires respondents to provide numerical answers on a nine-point scale 
answering such questions about how much one's self-confidence goes up 
and down, and how sensitive one's self-confidence is to performance and 
negative feedback.
Others, skeptical about the reliability of such self-report 
indices, have measured self-confidence by having examiners assess 
non-verbal cues of subjects, measuring on a scale of 1 to 5 whether the 
individual
- maintains frequent eye contact or almost completely avoids eye contact,
- engages in little or no fidgeting, or, a lot of fidgeting,
- seldom or frequently uses self-comforting gestures (e.g. stroking hair or chin, arms around self),
- sits up straight facing the experimenter, or, sits hunched over or rigidly without facing the experimenter,
- has a natural facial expression, or, grimaces,
- does not twiddle hands, or, frequently twiddles something in their hand, or,
- uses body and hand gestures to emphasize a point, or, never uses hand or body gestures to emphasize a point or makes inappropriate gestures.
Wheel of Wellness
The Wheel of Wellness was the first theoretical model of Wellness based in counseling theory. It is a model based on Adler's individual psychology and cross-disciplinary research on characteristics of healthy people who live longer and with a higher quality of life. The Wheel of Wellness includes five life tasks that relate to each other: spirituality,
 self-direction, work and leisure, friendship, and love. There are 15 
subtasks of self-direction areas: sense of worth, sense of control, 
realistic beliefs, emotional awareness and coping, problem solving and creativity, sense of humor, nutrition, exercise, self-care, stress management, gender identity, and cultural identity.
 There are also five second-order factors, the Creative Self, Coping 
Self, Social Self, Essential Self, and Physical Self, which allow 
exploration of the meaning of wellness within the total self. In order 
to achieve a high self-esteem, it is essential to focus on identifying 
strengths, positive assets, and resources related to each component of 
the Wellness model and using these strengths to cope with life 
challenges.
Implicit vs. explicit
Implicitly measured self-esteem has been found to be weakly correlated with explicitly measured self-esteem. This leads some critics
 to assume that explicit and implicit self-confidence are two completely
 different types of self-esteem. Therefore, this has drawn the 
conclusion that one will either have a distinct, unconscious self-esteem
 OR they will consciously misrepresent how they feel about themselves. 
Recent studies have shown that implicit self-esteem doesn't particularly
 tap into the unconscious,
 rather that people consciously overreport their levels of self-esteem. 
Another possibility is that implicit measurement may be assessing a 
different aspect of conscious self-esteem altogether. Inaccurate self-evaluation is commonly observed in healthy populations. In the extreme, large differences between oneʼs self-perception
 and oneʼs actual behavior is a hallmark of a number of disorders that 
have important implications for understanding treatment seeking and 
compliance.
