Correlation coefficient

Correlation coefficient

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 divided by their (sample) standard deviations
  • Correlation and dependence, a broad class of statistical relationships between two or more random variables or observed data values
  • Goodness of fit, which refers to any of several measures that measure how well a statistical model fits observations by summarizing the discrepancy between observed values and the values expected under the model in question
  • Coefficient of determination, a measure of the proportion of variability in a data set that is accounted for by a statistical model; often called R2; equal in a single-variable linear regression to the square of Pearson's product-moment correlation coefficient
  • Intraclass correlation, a descriptive statistic that can be used when quantitative measurements are made on units that are organized into groups; describes how strongly units in the same group resemble each other.
  • Rank correlation, the study of relationships between different rankings on the same set of items



Wikimedia Foundation. 2010.

Игры ⚽ Нужна курсовая?

Look at other dictionaries:

  • correlation coefficient — n. Statistics any of several measures of concomitant variation in two or more variables …   English World dictionary

  • correlation coefficient — noun a statistic representing how closely two variables co vary; it can vary from 1 (perfect negative correlation) through 0 (no correlation) to +1 (perfect positive correlation) what is the correlation between those two variables? • Syn:… …   Useful english dictionary

  • 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

  • Correlation Coefficient — A measure that determines the degree to which two variable s movements are associated. The correlation coefficient is calculated as: The correlation coefficient will vary from 1 to +1. A 1 indicates perfect negative correlation, and +1 indicates… …   Investment dictionary

  • correlation coefficient — koreliacijos koeficientas statusas T sritis automatika atitikmenys: angl. correlation coefficient vok. Korrelationskoeffizient, m rus. коэффициент корреляции, m pranc. coefficient de corrélation, m …   Automatikos terminų žodynas

  • correlation coefficient — koreliacijos koeficientas statusas T sritis fizika atitikmenys: angl. correlation coefficient vok. Korrelationskoeffizient, m rus. коэффициент корреляции, m pranc. coefficient de corrélation, m …   Fizikos terminų žodynas

  • correlation coefficient — koreliacijos koeficientas statusas T sritis biomedicinos mokslai apibrėžtis Statistinis rodiklis, rodantis tiesinio dviejų ↑kintamųjų ryšio stiprumą. Dažniausiai vartojamas Pearsono koeficientas žymimas r. Jis kinta nuo –1 iki +1. Teigiamosios… …   Lithuanian dictionary (lietuvių žodynas)

  • correlation coefficient — koreliacijos koeficientas statusas T sritis augalininkystė apibrėžtis Rodiklis, rodantis koreliacijos glaudumo laipsnį. atitikmenys: angl. correlation coefficient rus. коэффициент корреляции …   Žemės ūkio augalų selekcijos ir sėklininkystės terminų žodynas

  • correlation coefficient — Statistics. one of a number of measures of correlation, usually assuming values from +1 to 1. Also called coefficient of correlation. [1905 10] * * * …   Universalium

  • correlation coefficient — /kɒrəˌleɪʃən koʊəˈfɪʃənt/ (say koruh.layshuhn kohuh fishuhnt) noun the statistical measure of correlation, called r, having the value +1 for perfect positive linear correlation, 1 for perfect negative linear correlation, and a value of 0 for a… …  

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”