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

---

Example Sentences

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

From Scientific American

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

From Scientific American

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

Significance established with one-tailed Fisher’s test. d, HDR outcomes with or without ssODN. e, HDR efficiencies in S- and M-phase-injected embryos compared to controls.

From Nature

One-tailed Fisher’s test was used for the comparisons in Fig. 2f, Fig. 3c, and Extended Data Fig. 1e.

From Nature