sign test

sign test
a nonparametric statistical test based on a null hypothesis that by chance the experimental group should outperform the control group for half the outcome variables and vice versa. Results are scored as a series of pluses and minuses awarded to the experimental group depending on its performance relative to that of the control group, a binomial distribution of scores with p = 0.5 being expected under the null hypothesis.

Medical dictionary. 2011.

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  • Sign test — In statistics, the sign test can be used to test the hypothesis that there is no difference between the continuous distributions of two random variables X and Y . Formally:Let p = Pr( X > Y ), and then test the null hypothesis H0: p = 0.50. This… …   Wikipedia

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  • Becker phenomenon (sign) test — Beck·er phenomenon (sign), test (bekґər) [Otto Heinrich Enoch Becker, German oculist, 1828–1890] see under phenomenon and test …   Medical dictionary

  • Boas algesimeter point (sign test) — Bo·as algesimeter, point (sign, test) (boґahs) [Ismar Isidor Boas, German physician, 1858–1938] see under algesimeter and point …   Medical dictionary

  • Rumpel-Leede phenomenon (sign test) — Rum·pel Leede phenomenon (sign, test) (roomґpəl lēdґ) [Theodor Rumpel, German physician, 1862–1923; Carl Stockbridge Leede, American physician, 1882–1964] see under phenomenon …   Medical dictionary

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