Class inclusion refers to the knowledge that
a. all objects must belong to at least one type of class.
b. a class must always be smaller than any more-inclusive class in which it is contained.
c. a class must always include more than one subclass.
d. a superordinate class cannot include more than two subordinate classes.
Question 2
The concrete operational ability to classify objects simultaneously on the basis of more than one category is called
a. multiple classification. c. criteria assessment.
b. dimensional classification. d. labeling.
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