All of the following are true of Piaget's formal operational stage, except that

All of the following are true of Piaget's formal operational stage, except that
 
  a. it typically occurs between 11 and 16 years of age.
  b. it is the final stage of thought.
  c. it can be qualitatively improved upon once it is acquired.
  d. it is the stage when children can think in the abstract.

Question 2

Children at the concrete operational stage possess the logical thinking ability that Piaget called transitive inference, which
 
  a. enables children to measure or visually confirm the sizes of different objects.
  b. enables children to perceive minute differences among many objects.
  c. enables children to perform reverse mathematical operations.
  d. enables children to draw conclusions without the need to double-check them through perception.

Question 3

Seriation is a skill that refers to
 
  a. counting objects. c. ordering objects.
  b. classifying objects. d. dividing objects.

Question 4

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 5

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.