Look up effect in Wiktionary, the free dictionary. Effect may refer to: A result or change of something List of effects Cause and effect, an idiom describing...

The Streisand effect is an unintended consequence of attempts to hide, remove, or censor information, where the effort instead increases public awareness...

The Dunning–Kruger effect is a cognitive bias in which people with limited competence in a particular domain overestimate their abilities. It was first...

The Effect is a play by the British playwright Lucy Prebble. The story revolves around two protagonists, Connie and Tristan, who volunteer in a clinical...

In chaos theory, the butterfly effect is the sensitive dependence on initial conditions in which a small change in one state of a deterministic nonlinear...

The Bezold effect is an optical illusion, named after a German professor of meteorology Wilhelm von Bezold (1837–1907), who discovered that a color may...

A domino effect is the cumulative effect produced when one event sets off a series of similar or related events, a form of chain reaction. The term is...

In social choice theory and politics, the spoiler effect refers to a situation where a large group of like-minded voters split their votes among multiple...

The Barnum effect, also called the Forer effect or, less commonly, the Barnum–Forer effect, is a common psychological phenomenon whereby individuals give...

Look up effector in Wiktionary, the free dictionary. Effector may refer to: Effector (biology), a molecule that binds to a protein and thereby alters the...

deterministic health effect has a severity that is dependent on dose and is believed to have a threshold level for which no effect is seen. Stochastic...

In psychology, the Stroop effect is the delay in reaction time between congruent and incongruent stimuli. The effect has been used to create a psychological...

In social psychology, the pratfall effect is the tendency for interpersonal appeal to change after an individual makes a mistake, depending on the individual's...

The thermoelectric effect is the direct conversion of temperature differences to electric voltage and vice versa via a thermocouple. A thermoelectric device...

The Doppler effect (also Doppler shift) is the change in the frequency of a wave in relation to an observer who is moving relative to the source of the...

The greenhouse effect occurs when greenhouse gases in a planet's atmosphere insulate the planet from losing heat to space, raising its surface temperature...

The photoelectric effect is the emission of electrons from a material caused by electromagnetic radiation such as ultraviolet light. Electrons emitted...

The Westermarck effect, also known as reverse sexual imprinting, is a psychological hypothesis that states that people tend not to be attracted to peers...

Mass Effect is a military science fiction media franchise created by Casey Hudson. The franchise depicts a distant future where humanity and several alien...

overview effect is a cognitive shift reported by some astronauts while viewing the Earth from space. Researchers have characterized the effect as "a state...

The halo effect (sometimes called the halo error) is the proclivity for positive impressions of a person, company, country, brand, or product in one area...

Mandela effect, sometimes referred to as the Mandela phenomenon, is an instance of false collective memory. Mandela Effect or The Mandela Effect may also...

The Butterfly Effect is a 2004 American science fiction thriller film written and directed by Eric Bress and J. Mackye Gruber. It stars Ashton Kutcher...

The Zeeman effect (/ˈzeɪmən/; Dutch pronunciation: [ˈzeːmɑn]) is the effect of splitting of a spectral line into several components in the presence of...

The Leidenfrost effect is a physical phenomenon in which a liquid, close to a solid surface of another body that is significantly hotter than the liquid's...

The Magnus effect is an observable phenomenon commonly associated with a spinning object moving through a fluid. A lift force acts on the spinning object...

The Stark effect is the shifting and splitting of spectral lines of atoms and molecules due to the presence of an external electric field. It is the electric-field...

The Kerr effect, also called the quadratic electro-optic (QEO) effect, is a change in the refractive index of a material in response to an applied electric...

An adverse effect is an undesired harmful effect resulting from a medication or other intervention, such as surgery. An adverse effect may be termed a...

Observer effect, observer bias, observation effect, or observation bias may refer to a number of concepts, some of them closely related: Hawthorne effect, a...