Does the Correlation Coefficient Really Measure the Degree of Clustering around a Line?.

Loh, Wei-yin

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Peer reviewed

ERIC Number: EJ366914

Record Type: Journal

Publication Date: 1987

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Does the Correlation Coefficient Really Measure the Degree of Clustering around a Line?

Loh, Wei-yin

Journal of Educational Statistics, v12 n3 p235-239 Fall 1987

This paper derives a formula for the square of the correlation coefficient in terms of its maximum possible value under rotation of the axes. An application of the formula to quick visual estimation of the correlation coefficient is provided. (TJH)

Descriptors: Cluster Analysis, Correlation, Statistical Distributions

Publication Type: Journal Articles; Reports - Research

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Language: English

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