 | Timothy J. Wolterink - Groundwater - 1979 - 168 pages
...imperfectly related -8-1 • Figure 8. Illustration of the Meaning of Correlation Coefficient, r. The partial correlation coefficient is a measure of the strength of the relationship between two variables given that one or more other variables are fixed. Criterion for Choosing Variables Which... | |
 | Alistair W Kerr, Howard K Hall, Stephen A Kozub, Stephen Kozub - Mathematics - 2002 - 250 pages
...the line is reduced. Correlation Coefficients To assess the predictive value of the regression line a measure of the strength of the relationship between the two variables is necessary. The nature of the relationship between two variables is represented by a correlation... | |
 | Dick Russell, Juli Beales - Mathematics - 2002 - 206 pages
...— standard deviation of x S Sv = standard deviation of y r = 5V5V The correlation coefficient r, is a measure of the strength of the relationship between the two variables jc and y. — 1 ^ r ^ 1 . A positive value for r implies that as x increases y increases. A negative... | |
 | Shelley Mulligan - Medical - 2003 - 374 pages
...because this statistic is frequently used by test developers to establish reliability and validity. A correlation coefficient is a measure of the strength of the relationship between two variables. It is a number that ranges from - 1 (a perfect negative relationship) to + 1 (a perfect... | |
 | Gerald van Belle, Lloyd D. Fisher, Patrick J. Heagerty, Thomas Lumley - Medical - 2004 - 896 pages
...underlying variables which determine (cause) length and weight. In this section we provide a quantitative measure of the strength of the relationship between the two variables and discuss some of the properties of this measure. The measure (the correlation coefficient) is a measure... | |
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The correlation coefficient is a measure of the strength of the relationship between two variables, X and Y. 