A New Descriptive Statistic: The Parabolic Correlation Coefficient  

Oleh:

Peters, Charles C.

Jenis: Article from Journal - e-Journal
Dalam koleksi: Psychometrika: A Journal of Quantitative Psychology vol. 11 no. 1 (Mar. 1946), page 57-69.
Topik: Descriptive Statistic; Parabolic Correlation Coefficient
Fulltext: A New Descriptive Statistic The Parabolic Correlation Coefficient.pdf (593.31KB)

Isi artikel

This article proposes a new descriptive statistic related to the second order parabola in the same manner in which the familiar correlation coefficient is related to the regression coefficient. The parabolicr describes in standard terms simultaneously the general trend of the regression and the extent and nature of its curvilinearity, and is relatively easy to compute and easy to communicate. Formulas for its standard error and its limits are derived and it is applied to a number of regressions.

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