Correlation coefficient refers to the statistics that measures the strength of relations between two measures, example, intelligence and school achievement); expressed in a positive or negative ratio from -1.0 to _1.0.
Other definition:
Correlation Coefficient is a number that describes the degree of Association between two (2) variables of interest.
Other /More definition:
Correlation coefficient refers to the statistics that measures the strength of relations between two measures, example, intelligence and school achievement); expressed in a positive or negative ratio from -1.0 to _1.0.
Other /More definition:
correlation coefficient refers to computed statistic reflecting the strength and direction of any association between two (2) variables. It can range from –1.00 through 0.00 that indicates no association to +1.00, with the absolute value indicating the strength and the sign reflecting the direction.

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