Find over 25,000 psychological definitions


polychoric correlation coefficient

an index showing the degree of association between two variables that are scored as ordered categories but assumed to be manifestations of underlying continuous random variables. It is an alternative to the product-moment correlation coefficient that is applied to ordered polychotomous variables. For example, a researcher might use a polychoric correlation coefficient to assess the relationship between teacher ratings of student interest in a topic (none, moderate, substantial) and student self-reports of interest.

Browse dictionary by letter

a b c d e f g h i j k l m n o p q r s t u v w x y z

Psychology term of the day

May 9th 2024

sudden unexpected nocturnal-death syndrome

sudden unexpected nocturnal-death syndrome

see nightmare-death syndrome.