The concept self-confidence as commonly used is self-assurance in one's personal judgment, ability, power, etc. One increases self-confidence 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.
Ideas about the causes and effects of self-confidence have changed throughout history.
Before the 19th century, self-confidence first appeared in English language publications of writings describing characteristics of a sacrilegious religious 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.