one-tailed

British  

adjective

1. statistics (of a significance test) concerned with the hypothesis that an observed value of a sampling statistic either significantly exceeds or falls significantly below a given value, where the error is relevant only in one direction: for instance, in testing whether scales are fair a customer does not regard overweight goods as a relevant error Compare two-tailed

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Example Sentences

At the 7–12 month follow-up the decrease was not significant, even according to the lower standards of the one-tailed test.

From Scientific American • Nov. 5, 2020

A one-tailed test provides a lower standard for achieving significance compared to the much more common two-tailed test.

From Scientific American • Nov. 5, 2020

This is a one-tailed test and all of the alpha probability is placed in just one tail and not split into α/2 as in the above case of a two-tailed test.

From Textbooks • Nov. 29, 2017

Be sure to match the graph with the hypothesis, especially if it is a one-tailed test.

From Textbooks • Nov. 29, 2017

Carey and Marshman translate, “the one-tailed city.”388.The verses in a different metre with which some cantos end are all to be regarded with suspicion.

From The Rámáyan of Válmíki, translated into English verse by Griffith, Ralph T. H. (Ralph Thomas Hotchkin)