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Type I error

noun

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

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To cook in water that begins cold and then reaches a boil.
To stew in a sauce for a long time.
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Origin of Type I error

First recorded in 1960–65

Words nearby Type I error

type founder, type genus, type-high, typeholder, type I acrocephalosyndactyly, Type I error, type I familial hyperlipoproteinemia, type II acrocephalosyndactyly, Type II error, type II familial hyperlipoproteinemia, type III acrocephalosyndactyly
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for 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
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