halo effect(redirected from Devil effect)
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Related to Devil effect: Contrast effect
An effect whereby the perception of positive qualities in one thing or part gives rise to the perception of similar qualities in related things or in the whole: "Congenial surroundings or service at a restaurant can sometimes create a halo effect for the food" (M.H. Reed).
1. (Psychology) See horns and halo effect
2. (Commerce) the beneficial effect on sales of a company's range of products produced by the popularity or high profile of one particular product
a potential inaccuracy in estimation or judgment, esp. of a person, due to a tendency to overgeneralize from a single salient feature or action, usu. in a favorable direction.