Useful english dictionary. 2012.
phi coefficient — noun an index of the relation between any two sets of scores that can both be represented on ordered binary dimensions (e.g., male female) • Syn: ↑phi correlation, ↑fourfold point correlation • Topics: ↑statistics • Hypernyms: ↑ … Useful english dictionary
Phi coefficient — In statistics, the phi coefficient (also referred to as the mean square contingency coefficient and denoted by φ or rφ) is a measure of association for two binary variables introduced by Karl Pearson[1]. This measure is similar to the Pearson… … Wikipedia
fourfold point correlation — noun an index of the relation between any two sets of scores that can both be represented on ordered binary dimensions (e.g., male female) • Syn: ↑phi coefficient, ↑phi correlation • Topics: ↑statistics • Hypernyms: ↑nonparametric s … Useful english dictionary
Partial correlation — In probability theory and statistics, partial correlation measures the degree of association between two random variables, with the effect of a set of controlling random variables removed. Contents 1 Formal definition 2 Computation 2.1 Using… … 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
List of psychology topics — This page aims to list all topics related to psychology. This is so that those interested in the subject can monitor changes to the pages by clicking on Related changes in the sidebar. It is also to see the gaps in Wikipedia s coverage of the… … Wikipedia
distribution free statistic — noun a statistic computed without knowledge of the form or the parameters of the distribution from which observations are drawn • Syn: ↑nonparametric statistic • Topics: ↑statistics • Hypernyms: ↑statistic • Hyponyms: ↑ … Useful english 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
Feynman diagram — The Wick s expansion of the integrand gives (among others) the following termNarpsi(x)gamma^mupsi(x)arpsi(x )gamma^ upsi(x )underline{A mu(x)A u(x )};,whereunderline{A mu(x)A u(x )}=int{d^4pover(2pi)^4}{ig {mu u}over k^2+i0}e^{ k(x x )}is the… … Wikipedia
Effect size — In statistics, an effect size is a measure of the strength of the relationship between two variables in a statistical population, or a sample based estimate of that quantity. An effect size calculated from data is a descriptive statistic that… … Wikipedia
