Medical dictionary. 2011.
Nonparametric regression — is a form of regression analysis in which the predictor does not take a predetermined form but is constructed according to information derived from the data. Nonparametric regression requires larger sample sizes than regression based on… … Wikipedia
nonparametric — /non par euh me trik/, adj. Statistics. (of a test or method) not requiring assertions about parameters or about the form of the underlying distribution. [1940 45; NON + PARAMETRIC] * * * … Universalium
nonparametric statistics — a statistical methodology that can be used on data without making the assumption that the data are drawn from a population with a normal or other specified distribution. See also under test … Medical dictionary
nonparametric statistic — noun a statistic computed without knowledge of the form or the parameters of the distribution from which observations are drawn • Syn: ↑distribution free statistic • Topics: ↑statistics • Hypernyms: ↑statistic • Hyponyms … Useful english dictionary
Logrank test — In statistics, the logrank test is a hypothesis test to compare the survival distributions of two samples. It is a nonparametric test and appropriate to use when the data are right skewed and censored (technically, the censoring must be non… … Wikipedia
Median test — In statistics, Mood s median test is a special case of Pearson s chi squared test. It is a nonparametric test that tests the null hypothesis that the medians of the populations from which two samples are drawn are identical. The data in each… … Wikipedia
Wilcoxon Test — The Wilcoxon test, which refers to either the Rank Sum test or the Signed Rank test, is a nonparametric test that compares two paired groups. The test essentially calculates the difference between each set of pairs and analyzes these differences … Investment dictionary
Kolmogorov-Smirnov test — In statistics, the Kolmogorov ndash;Smirnov test (also called the K S test for brevity) is a form of minimum distance estimation used as a nonparametric test of equality of one dimensional probability distributions used to compare a sample with a … Wikipedia
Durbin test — In the analysis of designed experiments, the Friedman test is the most common non parametric test for complete block designs. The Durbin test is a nonparametric test for balanced incomplete designs that reduces to the Friedman test in the case of … Wikipedia
Kruskal-Wallis test — a nonparametric test for ordinal data, comparing three or more groups simultaneously: all data are ranked numerically and then the rank values are summed and averaged for each group. If the null hypothesis that all groups are drawn from the same… … Medical dictionary
