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  • Type I error
    Type I error
    noun
    the error made in the statistical testing of a hypothesis by rejecting the null hypothesis when it is actually true.
  • type I error
    type I error
    noun
    statistics the error of rejecting the null hypothesis when it is true, the probability of which is the significance level of a result

Type I error

American  

noun

  1. the error made in the statistical testing of a hypothesis by rejecting the null hypothesis when it is actually true.


type I error British  

noun

  1. statistics the error of rejecting the null hypothesis when it is true, the probability of which is the significance level of a result

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of Type I error

First recorded in 1960–65

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