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In the case of
uncertainty Uncertainty refers to epistemic situations involving imperfect or unknown information. It applies to predictions of future events, to physical measurements that are already made, or to the unknown. Uncertainty arises in partially observable o ...
, expectation is what is considered the most likely to happen. An expectation, which is a
belief A belief is an attitude that something is the case, or that some proposition is true. In epistemology, philosophers use the term "belief" to refer to attitudes about the world which can be either true or false. To believe something is to take ...
that is centered on the
future The future is the time after the past and present. Its arrival is considered inevitable due to the existence of time and the laws of physics. Due to the apparent nature of reality and the unavoidability of the future, everything that currently ...
, may or may not be realistic. A less advantageous result gives rise to the
emotion Emotions are mental states brought on by neurophysiological changes, variously associated with thoughts, feelings, behavioral responses, and a degree of pleasure or displeasure. There is currently no scientific consensus on a definition. ...
of
disappointment Disappointment is the feeling of dissatisfaction that follows the failure of expectations or hopes to manifest. Similar to regret, it differs in that a person who feels regret focuses primarily on the personal choices that contributed to a ...
. If something happens that is not at all expected, it is a surprise. An expectation about the behavior or performance of another person, expressed to that person, may have the nature of a strong request, or an order; this kind of expectation is called a
social norm Social norms are shared standards of acceptable behavior by groups. Social norms can both be informal understandings that govern the behavior of members of a society, as well as be codified into rules and laws. Social normative influences or soc ...
. The degree to which something is expected to be true can be expressed using
fuzzy logic Fuzzy logic is a form of many-valued logic in which the truth value of variables may be any real number between 0 and 1. It is employed to handle the concept of partial truth, where the truth value may range between completely true and complete ...
.
Anticipation Anticipation is an emotion involving pleasure or anxiety in considering or awaiting an expected event. Anticipatory emotions include fear, anxiety, hope and trust. When the anticipated event fails to occur, it results in disappointment (if posi ...
is the emotion corresponding to expectation.


Expectations of well-being

Richard Lazarus Richard S. Lazarus (March 3, 1922 – November 24, 2002) was an American psychologist who began rising to prominence in the 1960s. A ''Review of General Psychology'' survey, published in 2002, ranked Lazarus as the 80th most cited psychologist of ...
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.


Response-Expectancies

Irving Kirsch, a renowned psychological researcher, writes about "response-expectancies" which are: expectations about non- volitional responses. For example, science commonly takes into account "
placebo A placebo ( ) is a substance or treatment which is designed to have no therapeutic value. Common placebos include inert tablets (like sugar pills), inert injections (like saline), sham surgery, and other procedures. In general, placebos can aff ...
-effects" when testing for new drugs, against subjects expectations of those drugs: for example, if you expect to receive a drug that may help with depression, and you feel better after taking it, but the drug is just a salt-tablet (better known as a
placebo A placebo ( ) is a substance or treatment which is designed to have no therapeutic value. Common placebos include inert tablets (like sugar pills), inert injections (like saline), sham surgery, and other procedures. In general, placebos can aff ...
), then the benefit of feeling better (i.e. your non-volitional response), would be based on your expectations rather than any properties of the placebo (i.e. the salt-tablet).


Expectations impact on beliefs

Sociologist Robert K. Merton wrote that a person's expectation is directly linked to
self-fulfilling prophecy A self-fulfilling prophecy is a prediction that comes true at least in part as a result of a person's or group of persons' belief or expectation that said prediction would come true. This suggests that people's beliefs influence their actions. T ...
. 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 In the social sciences, unintended consequences (sometimes unanticipated consequences or unforeseen consequences) are outcomes of a purposeful action that are not intended or foreseen. The term was popularised in the twentieth century by Ameri ...
could result. If overly positive or elevated expectations were used to describe or manipulate a person's
self-image Self-image is the mental picture, generally of a kind that is quite resistant to change, that depicts not only details that are potentially available to an objective investigation by others (height, weight, hair color, etc.), but also items that h ...
and execution falls short, the results could be a total reversal of that person's
self-confidence Confidence is a state of being clear-headed either that a hypothesis or prediction is correct or that a chosen course of action is the best or most effective. Confidence comes from a Latin word 'fidere' which means "to trust"; therefore, having ...
. If thought of in terms of
causality Causality (also referred to as causation, or cause and effect) is influence by which one event, process, state, or object (''a'' ''cause'') contributes to the production of another event, process, state, or object (an ''effect'') where the ca ...
or cause and effect, the higher a person's expectation and the lower the execution, the higher the frustration level may become. This in turn could cause a total cessation of effort and motivate the person to quit.


Expectations elicitation

Expectations are a central part of value calculations in economics. For example, calculating the
Subjective expected utility In decision theory, subjective expected utility is the attractiveness of an economic opportunity as perceived by a decision-maker in the presence of risk. Characterizing the behavior of decision-makers as using subjective expected utility was prom ...
of an outcome requires knowing both the value of an outcome and the probability that it will occur. Researchers who elicit (or measure) the expectations of individuals can input these beliefs into the model in place of standard probabilities. The strategy of eliciting individual expectations is now incorporated into many international surveys, including the
Health and Retirement Study The Health and Retirement Study (HRS) is a longitudinal survey of a representative sample of Americans over age 50 conducted by the Survey Research Center (SRC) at the Institute for Social Research (ISR) at the University of Michigan in Ann Arbor ...
in the United States. Expectations elicitation is used in many domains, including survival and educational outcomes, but may be most prominent in financial realms. Expectations are theoretically important for models such as the
Efficient-market hypothesis The efficient-market hypothesis (EMH) is a hypothesis in financial economics that states that asset prices reflect all available information. A direct implication is that it is impossible to "beat the market" consistently on a risk-adjusted bas ...
which suggest that all information should be incorporated into the market, as well as for
Modern portfolio theory Modern portfolio theory (MPT), or mean-variance analysis, is a mathematical framework for assembling a portfolio of assets such that the expected return is maximized for a given level of risk. It is a formalization and extension of diversificat ...
which suggests that investors must be compensated for higher levels of risk through higher (expected) returns. Following these models, empirical research has found that consumers with more optimistic stock market expectations are more likely to hold riskier assets, and acquire stocks in the near future. Given these promising findings, more recent research in psychology has begun to explore what factors drive consumers' expectations by exploring what factors come to mind when forming stock market expectations.


See also

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Anticipation Anticipation is an emotion involving pleasure or anxiety in considering or awaiting an expected event. Anticipatory emotions include fear, anxiety, hope and trust. When the anticipated event fails to occur, it results in disappointment (if posi ...
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Collective belief A belief is an attitude that something is the case, or that some proposition is true. In epistemology, philosophers use the term "belief" to refer to attitudes about the world which can be either true or false. To believe something is to take ...
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Delusion A delusion is a false fixed belief that is not amenable to change in light of conflicting evidence. As a pathology, it is distinct from a belief based on false or incomplete information, confabulation, dogma, illusion, hallucination, or some ...
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Folk psychology In philosophy of mind and cognitive science, folk psychology, or commonsense psychology, is a human capacity to explain and predict the behavior and mental state of other people. Processes and items encountered in daily life such as pain, pleasure ...
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Forward-looking statement In United States business law, a forward-looking statement or safe harbor statement is a statement that cannot sustain itself as merely a historical fact. A forward-looking statement predicts, projects, or uses future events as expectations or ...
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Gettier problem The Gettier problem, in the field of epistemology, is a landmark philosophical problem concerning the understanding of descriptive knowledge. Attributed to American philosopher Edmund Gettier, Gettier-type counterexamples (called "Gettier-cases") ...
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Observer-expectancy effect The observer-expectancy effect (also called the experimenter-expectancy effect, expectancy bias, observer effect, or experimenter effect) is a form of reactivity in which a researcher's cognitive bias causes them to subconsciously influence th ...
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Placebo A placebo ( ) is a substance or treatment which is designed to have no therapeutic value. Common placebos include inert tablets (like sugar pills), inert injections (like saline), sham surgery, and other procedures. In general, placebos can aff ...
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Prediction A prediction (Latin ''præ-'', "before," and ''dicere'', "to say"), or forecast, is a statement about a future event or data. They are often, but not always, based upon experience or knowledge. There is no universal agreement about the exac ...
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Propositional attitude A propositional attitude is a mental state held by an agent toward a proposition. Linguistically, propositional attitudes are denoted by a verb (e.g. "believed") governing an embedded "that" clause, for example, 'Sally believed that she had won ...
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Propositional knowledge In epistemology, descriptive knowledge (also known as propositional knowledge, knowing-that, declarative knowledge, or constative knowledge) is knowledge that can be expressed in a declarative sentence or an indicative proposition. "Knowing-that" ...
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Self-fulfilling prophecy A self-fulfilling prophecy is a prediction that comes true at least in part as a result of a person's or group of persons' belief or expectation that said prediction would come true. This suggests that people's beliefs influence their actions. T ...
* Subject-expectancy effect *
Surprise (emotion) Surprise () is a brief mental and physiological state, a startle response experienced by animals and humans as the result of an unexpected event. Surprise can have any valence; that is, it can be neutral/moderate, pleasant, unpleasant, positive, ...
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Suggestibility Suggestibility is the quality of being inclined to accept and act on the suggestions of others. One may fill in gaps in certain memories with false information given by another when recalling a scenario or moment. Suggestibility uses cues to disto ...
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Syncopation In music, syncopation is a variety of rhythms played together to make a piece of music, making part or all of a tune or piece of music off-beat. More simply, syncopation is "a disturbance or interruption of the regular flow of rhythm": a "plac ...
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Thomas theorem The Thomas theorem is a theory of sociology which was formulated in 1928 by William Isaac Thomas and Dorothy Swaine Thomas: In other words, the interpretation of a situation causes the action. This interpretation is not objective. Actions are ...
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Unintended consequence In the social sciences, unintended consequences (sometimes unanticipated consequences or unforeseen consequences) are outcomes of a purposeful action that are not intended or foreseen. The term was popularised in the twentieth century by Ameri ...


References


External links

{{Authority control Thought Psychological attitude Concepts in epistemology