correlation of ranks

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• Correlation coefficient — may refer to: Pearson product moment correlation coefficient, also known as r, R, or Pearson s r, a measure of the strength of the linear relationship between two variables that is defined in terms of the (sample) covariance of the variables… …   Wikipedia

• correlation — 1. The mutual or reciprocal relation of two or more items or parts. 2. The act of bringing into such a relation. 3. The degree to which variables change together. product moment c. a statistical procedure which yields the c. coefficient referred… …   Medical dictionary

• Correlation — (statistical term)   In its most general sense, correlation denotes the interdependence between quantitative or qualitative data. It would include the association of dichotomized attributes and the contingency of multiple classified attributes.… …   Energy terms

• Spearman's rank correlation coefficient — In statistics, Spearman s rank correlation coefficient or Spearman s rho, named after Charles Spearman and often denoted by the Greek letter ho (rho) or as r s, is a non parametric measure of correlation ndash; that is, it assesses how well an… …   Wikipedia

• Point-biserial correlation coefficient — The point biserial correlation coefficient ( rpb ) is a correlation coefficient used when one variable (e.g. Y ) is dichotomous; Y can either be naturally dichotomous, like gender, or an artificially dichotomized variable. In most situations it… …   Wikipedia

• rank-difference correlation — noun the most commonly used method of computing a correlation coefficient between the ranks of scores on two variables • Syn: ↑rank order correlation coefficient, ↑rank order correlation, ↑rank difference correlation coefficient • Topics:… …   Useful english dictionary

• rank-difference correlation coefficient — noun the most commonly used method of computing a correlation coefficient between the ranks of scores on two variables • Syn: ↑rank order correlation coefficient, ↑rank order correlation, ↑rank difference correlation • Topics: ↑statistics •… …   Useful english dictionary

• rank-order correlation — noun the most commonly used method of computing a correlation coefficient between the ranks of scores on two variables • Syn: ↑rank order correlation coefficient, ↑rank difference correlation coefficient, ↑rank difference correlation • Topics:… …   Useful english dictionary

• rank-order correlation coefficient — noun the most commonly used method of computing a correlation coefficient between the ranks of scores on two variables • Syn: ↑rank order correlation, ↑rank difference correlation coefficient, ↑rank difference correlation • Topics: ↑statistics •… …   Useful english dictionary

• rank correlation coefficient — the correlation coefficient of two variables calculated after ranks have been substituted for actual values. See also Kendall rank correlation c. and Spearman rank correlation c …   Medical dictionary

• Mann–Whitney U — In statistics, the Mann–Whitney U test (also called the Mann–Whitney–Wilcoxon (MWW) or Wilcoxon rank sum test) is a non parametric statistical hypothesis test for assessing whether one of two samples of independent observations tends to have… …   Wikipedia