polychoric adjective 2noun 1forms 1 adjective2 •Of or pertaining to the relationship between two latent variables, each assumed to have a normal distribution and associated with an ordinal variable.Because the CES-D items are ordinal in nature (i.e., in our case a four-point response scale, and hence not continuous), a polychoric covariance matrix was used as input for the analyses. — 2007 •Of or pertaining to the use of more than one chorus; that uses or is intended to use more than one chorus.The polychoric motets of the Venetian school (Willaert, the Gabrielis, etc., some of whose motets are found in CW vol. 10 and IM vols. 1-2) furnish striking possibilities for multiple brass choirs. — 1962 noun1 •A polychoric correlation formspolychorics
