Viennese School

a group of early 20th-century practitioners of psychoanalysis, based in Vienna, who followed the theories of Sigmund Freud. Also called Vienna School; Wiener Schule. See also Wednesday Evening Society.

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Psychology term of the day

January 11th 2025

expected value

the value of a random variable or one of its functions as derived by mathematical calculation rather than observation. It is symbolized by E(x), with x varying according to the specific item of interest that is being calculated. Usually, the expected value is a mean or weighted average.