correlation (redirected from correlational)

correlation /cor·re·la·tion/ (kor?e-la´shun) in statistics, the degree and direction of association of variable phenomena; how well one can be predicted from the other.

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correlation,

n a statistical procedure used to determine the degree to which two (or more) variables vary together. Correlation does not suggest a cause-effect relationship but only the degree of parallelism or concomitance between the variables, the cause of which may be unknown. The
Pearson product-moment correlation (r) is the most frequently used, and this coefficient is used unless another is specified.

correlation, coefficient number

n the result of statistical computation that indicates the strength of the tendency of two or more variables to vary concomitantly. The coefficient is expressed in fractions (that is, r = 80), ranging from 21 to 11, and indicates the magnitude of the relationship between the variables. Perfect direct correspondence is expressed by 11; perfect inverse correspondence by 21; complete lack of correspondence by 0. Fractional values are not read as percents.

correlation, linear,

n a correlation in which the regression line, the line that best describes the relationship between the two variables, is a straight line, so that for any increase in the magnitude of one variable there will be a proportional change in the magnitude of the other variable.

correlation, multiple,

n a complex correlation procedure in which scores on two or more variables are combined to predict scores on another variable, called the
dependent variable.

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correlation

1. in neurology, the union of afferent impulses within a nerve center to bring about an appropriate response.

2. the degree to which statistical variables vary together.

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correlation coefficient

see correlation coefficient.