“polychoric”的英文意思_释义_用法

单词

polychoric

释义

polychoric, a. Statistics.|pɒlɪˈkɔərɪk|
[f. poly- + χώρ-ισις separation (f. χωρίζειν to separate) + -ic; cf. tetrachoric a.]
Used to describe a table in which data are divided into three or more classes by each of two criteria; of or pertaining to such a table; applied esp. to an estimate of the product-moment coefficient derived from such a table, and to concepts used in obtaining such an estimate.
1918Biometrika XII. 93 (heading) The correlation co⁓efficient of a polychoric table.1922Ibid. XIV. 149 What we actually desire is to compare the observations and the regression lines as given by the present polychoric method with those obtained by product-moment methods.1964Psychometrika XXIX. 386 In what follows, the tetrachoric series method is generalized to produce a new polychoric estimate of ρ.

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