A First-Order Method for Estimating Correlation Coefficients  

Oleh:

Weichelt, John A.

Jenis: Article from Journal - e-Journal
Dalam koleksi: Psychometrika: A Journal of Quantitative Psychology vol. 11 no. 4 (Dec. 1946), page 215-221.
Topik: Correlation Coefficients; Reliability; Variable Qualitative; Mathematical Description
Fulltext: A First-Order Method for Estimating Correlation Coefficients.pdf (286.39KB)

Isi artikel

A rapid method of estimating a correlation coefficient is given. The method expresses the correlation coefficient as the ratio between two differences in sums (or means) of the dependent variable computed only for extremes of the bivariate distribution. A trial shows that this method gives results similar to the product-moment correlation coefficient. Extensions of the method to qualitative data are also suggested.

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