Characteristics of Two Measures of Profile Similarity  

Oleh:

Harris, Chester W.

Jenis: Article from Journal - e-Journal
Dalam koleksi: Psychometrika: A Journal of Quantitative Psychology vol. 20 no. 4 (Dec. 1955), page 289-297.
Topik: Euclidean Distance; Uncorrelated Variables; Inverse Transformation; Principal-Axis Transformation
Fulltext: Vol 20 No.4 Dec 1955 p.289-297.pdf (442.97KB)

Isi artikel

Analogs of Pearson's coefficient of racial likeness and of Mahalanobis' distance measure have been proposed as descriptive statistics for comparing two individuals. This paper shows that two different definitions of “uncorrelated” variables—one associated with an inverse transformation and the other with a principal-axis transformation—give rise to these two descriptive statistics. The effects of putting the data into certain forms, such as equalizing the variances of the variables or equalizing the means of the persons, prior to using either of the two transformations, are discussed.

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