Cardinality

From EvaluationWiki

The mathematician's word for 'the count, or the number of things'. Thus the cardinality of a set of things, e.g., students in a class, is the number of things in the set, in this case the number of students in the class. The contrast is with ordinality, which is the rank of the evaluand, e.g., the rank of a student in a mathematics class or the rank of this class amongst all other classes at the same grade level in the school or district.