correlation coefficient


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correlation coefficient

n.
A measure of the interdependence of two random variables that ranges in value from -1 to +1, indicating perfect negative correlation at -1, absence of correlation at zero, and perfect positive correlation at +1. Also called coefficient of correlation.

correlation coefficient

n
(Statistics) statistics a statistic measuring the degree of correlation between two variables as by dividing their covariance by the square root of the product of their variances. The closer the correlation coefficient is to 1 or –1 the greater the correlation; if it is random, the coefficient is zero. See also Pearson's correlation coefficient, Spearman's rank-order coefficient

correla′tion coeffi`cient


n.
one of a number of measures of statistical correlation, usu. assuming values from + 1 to −1.
[1905–10]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.correlation coefficient - 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?"
statistics - a branch of applied mathematics concerned with the collection and interpretation of quantitative data and the use of probability theory to estimate population parameters
parametric statistic - any statistic computed by procedures that assume the data were drawn from a particular distribution
Pearson product-moment correlation coefficient, product-moment correlation coefficient - the most commonly used method of computing a correlation coefficient between variables that are linearly related
multiple correlation coefficient - an estimate of the combined influence of two or more variables on the observed (dependent) variable
biserial correlation, biserial correlation coefficient - a correlation coefficient in which one variable is many-valued and the other is dichotomous
chance-half correlation, split-half correlation - a correlation coefficient calculated between scores on two halves of a test; taken as an indication of the reliability of the test
tetrachoric correlation, tetrachoric correlation coefficient - a correlation coefficient computed for two normally distributed variables that are both expressed as a dichotomy
Translations
korelační koeficient
References in periodicals archive ?
Pearson correlation coefficient for the concurrent validity was .
Bustince & Burillo [13] proposed the concept of correlation and correlation coefficient of IVIFSs along with their properties.
The development of the UK HPI since 2000 (Figure 1, Appendix) shows an almost parallel trend to WAP, with a correlation coefficient of 0.
r-value is a Pearson product-moment correlation coefficient.
Table 1: Correlation coefficient and P value of pain and anxiety of patients with pathological LBP group after correlation analysis Parameters Values Correlation coefficient 0.
The Spearman correlation coefficient was used to measure the association between the adherence rate and the ranked variables.
In the form rP for the phenotypic correlation coefficient of x and y; rg for the genetic correlation coefficient; re for the environmental correlation coefficient; Hxy for the correlative heritability of trait x and y; H 2 for the heritability.
For establishing concurrent validity, scores of HAM-D-U and BDI-U were compared by using Spearman correlation coefficient.
Genotypic and phenotypic correlation coefficient correlation were worked out following the procedure of Al- Jibouri et al.
This is related to the fact that, when we use a partial correlation coefficient, we are also including information from factors besides the two correlating variables.