Expectation

Expectation, or expectations, as well as expectancy or expectancies, may refer to:

• Expectancy effect, including observer-expectancy effects and subject-expectancy effects such as the placebo effect
• Expectancy theory of motivation
• Expectation (philosophy)
• Expected value, in mathematical probability theory
• Expectation value (quantum mechanics)
• Expectation–maximization algorithm, in statistics

• Expectation (album), a 2013 album by Girl's Day
• Expectation, a 2006 album by Matt Harding
• Expectations (Keith Jarrett album), 1971
• Expectations (Dance Exponents album), 1985
• Expectations (Hayley Kiyoko album), 2018, or Expectations/Overture", a song from the album
• Expectations (Bebe Rexha album), 2018
• Expectations (Katie Pruitt album), 2020, or the title song
• "Expectation" (waltz), a 1980 waltz composed by Ilya Herold Lavrentievich Kittler
• "Expectation" (song), a 2010 song by Tame Impala
• "Expectations" (song), a 2018 song by Lauren Jauregui
• "Expectations", a song by Three Days Grace from Transit of Venus, 2012
• Expectation (EP), a 2023 extended play by D.O.

• Expectations (Friday Night Lights), a TV episode

• Expected value (disambiguation)
• Great Expectations, a novel by Charles Dickens
• Xpectation, 2003 studio album by Prince