correlation coefficient


Also found in: Dictionary, Thesaurus, Medical, Legal, Financial, Wikipedia.

correlation coefficient

[‚kär·ə′lā·shən ‚kō·i′fish·ənt]
(statistics)
A measurement, which is unchanged by both addition and multiplication of the random variable by positive constants, of the tendency of two random variables X and Y to vary together; it is given by the ratio of the covariance of X and Y to the square root of the product of the variance of X and the variance of Y.

correlation coefficient

a measure of the association between two variables. See CORRELATION, PEARSON PRODUCT MOMENT CORRELATION COEFFICIENT, SPEARMAN RANK CORRELATION COEFFICIENT.
References in periodicals archive ?
The phenotypic and genotypic correlation coefficients were estimated among eight characters in 42 genotypes (Table 1 and 2) respectively.
The relative efficiency of selection for drought resistance in breeding work can be understood by the combined analysis of genetic correlation coefficient and heritability.
Figure 4 provides the correlation coefficient varying trend of 14 bands of spectral reflectance and the five types of mathematical transforms.
Through the above data, the correlation coefficients between the color parameters and their polar components were calculated.
The correlation with manual and automated method for differential cell count was also good with correlation coefficient of 0.79; whereas for macrophages and mesothelial cell count it was only 0.64.
Correlation coefficients were also calculated between all the contact angle measurements and the subsequently calculated surface energy values to determine if a correlation coefficient is a suitable calculation to determine mathematical relationships between stain repellency and contact angle.
Calculate the correlation coefficient function [r.sub.xy] between x and y by using formula (1).
The actual value of the correlation coefficient corresponds to the strength of the relationship between the two variables.
The simple correlation coefficient bilateral (two-tail) Talent management Organizational Effectiveness Pearson's correlation 0.327 coefficient Significant level.
(14) Mateo in Bisquerra (2004), for practical purposes, presents the interpretation of the correlation coefficient of what is normally used in correlation studies in social sciences.