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

The finding about reduced authoritarianism barely met the threshold of significance –– and with a one-tailed t-test.

From Scientific American • Nov. 5, 2020

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

This is set up as a one-tailed test with the claim in the alternative hypothesis that the medicine will produce more endorphins than the sugar pill.

From Textbooks • Nov. 29, 2017

Also, this is a one-tailed test because the company has only an interested if the number of dollars per contact is below a particular number not "too high" a number.

From Textbooks • Nov. 29, 2017

Clare seemed absorbed in his game with his four-footed, one-tailed friends, but he was wide awake: he had Abdiel to deliver, and kept, therefore, all the time, at least half an eye on Glum Gunn.

From A Rough Shaking by MacDonald, George