true correlation
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Correlation does not imply causation — (related to ignoring a common cause and questionable cause) is a phrase used in science and statistics to emphasize that correlation between two variables does not automatically imply that one causes the other (though correlation is necessary for … Wikipedia
Correlation and dependence — This article is about correlation and dependence in statistical data. For other uses, see correlation (disambiguation). In statistics, dependence refers to any statistical relationship between two random variables or two sets of data. Correlation … Wikipedia
Correlation — In probability theory and statistics, correlation, (often measured as a correlation coefficient), indicates the strength and direction of a linear relationship between two random variables. In general statistical usage, correlation or co relation … Wikipedia
Correlation ratio — In statistics, the correlation ratio is a measure of the relationship between the statistical dispersion within individual categories and the dispersion across the whole population or sample. The measure is defined as the ratio of two standard… … Wikipedia
Correlation function (statistical mechanics) — For other uses, see Correlation function (disambiguation). In statistical mechanics, the correlation function is a measure of the order in a system, as characterized by a mathematical correlation function, and describes how microscopic variables… … Wikipedia
correlation coefficient — a statistical measure that when squared gives the degree of association between the values of two random variables. Most correlation coefficients are normalized so that they have values between +1 (perfect correlation) and −1 (perfect… … Medical dictionary
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
Matthews correlation coefficient — The Matthews correlation coefficient is used in machine learning as a measure of the quality of binary (two class) classifications. It takes into account true and false positives and negatives and is generally regarded as a balanced measure which … Wikipedia
Ecological correlation — In statistics, an ecological correlation is a correlation between two variables that are group means, in contrast to a correlation between two variables that describe individuals. For example, one might study the correlation between physical… … Wikipedia
Matthews Correlation Coefficient — The Matthews Correlation Coefficient is used in machine learning as a measure of the quality of binary (two class) classifications. It takes into account true and false positives and negatives and is generally regarded as a balanced measure which … Wikipedia
Identity correlation — Definition In information systems, identity correlation is a process that reconciles and validates the proper ownership of disparate user account login IDs (user names) that reside on systems and applications throughout an organization and can… … Wikipedia
