one-tailed


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one-tailed

adj
(Statistics) 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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References in periodicals archive ?
Concerning the relationship between the two CBM measures for fifth grade, a significant and positive relationship was obtained r(100) = .72, p < .01 (one-tailed).
Therefore, a one-tailed Fisher' s LSD test within a one-way ANOVA was used to assess differences in fetal body composition.
Four (5.13%) BL patients had AS compared with 11 (14.10%) controls ([chi square] (df=1)=3.74, p=0.052; Fisher's exact, one-tailed, p=0.050) (Table 1).
We planned to be able to detect a statistically significant effect with four control patients for every burn patient, using a one-tailed test.
Importantly, even after accounting for previous turnout, demographics, and state fixed effects, the field office variable has a statistically significant (p < .05, one-tailed) effect on voter turnout in 2012.
A z-test for a single proportion found that 63.6% was significantly higher than 12.5%, z = 5.14, p < .0001, one-tailed test.
We found only one interaction among groups of women who evaluated their relationship as the most and the least cohesive, which was the interaction effect of secure attachment style and cohesion on marital satisfaction, F(1, 64) = 3.15, p = .040 (one-tailed).
He has completely rewritten the chapter on regression modeling and added or clarified material on one-tailed and two-tailed tests, choosing the right statistical tests for a particular study, and programming.
Finally, because the intervention represented a replication of a previously tested strategy (Kelley-Baker, et al., 2011), we used a directional (one-tailed) test for all tests of the intervention (except for effects such as interactions that were truly exploratory).