ex·pec·ta·tion
ekspekˈtāSH(ə)n
-A strong belief that something will happen or be the case in the future.
-A belief that someone will or should achieve something.
Expectations impact on beliefs:
"Sociologist Robert K. Merton wrote that a person's expectation is directly linked to self-fulfilling prophecy. Whether or not such an expectation is truthful or not, has little or no effect on the outcome. If a person believes what they are told or convinces himself/herself of the fact, chances are this person will see the expectation to its inevitable conclusion."
"There is an inherent danger in this kind of labeling especially for the educator. Since children are easily convinced of certain tenets especially when told to them by an authority figure like a parent or teacher, they may believe whatever is taught to them even if what is taught has no factual basis. If the student or child were to act on false information, certain positive or negative unintended consequences could result. If overly positive or elevated expectations were used to describe or manipulate a person's self-image and execution falls short, the results could be a total reversal of that person's self-confidence."
Expectations of well-being:
"Richard Lazarus asserts that people become accustomed to positive or negative life experiences which lead to favorable or unfavorable expectations of their present and near-future circumstances. Lazarus notes the widely accepted philosophical principle that "happiness depends on the background psychological status of the person...and cannot be well predicted without reference to one's expectations."
"With regard to happiness or unhappiness, Lazarus notes that objective conditions of life are those of hardship and deprivation often make a positive assessment of their well-being," while "people who are objectively well off...often make a negative assessment of their well-being." Lazarus argues that "the most sensible explanation of this apparent paradox is that people...develop favorable or unfavorable expectations" that guide such assessments."
-Article derived and paraphrased from Wikipedia.org- Expectation (epistemic)-
https://en.wikipedia.org/wiki/Expectation_%28epistemic%29