An experimenter lines up pairs of checkers into two identical rows. Then the experimenter elongates one of the rows by spacing t

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An experimenter lines up pairs of checkers into two identical rows. Then the experimenter elongates one of the rows by spacing t

he checkers farther apart. This is a classic test of:
A. conservation of volume.
B. conservation of area.
C. conservation of number.
D. conservation of matter.

Social Studies

2 answers:

tigry1 [1.6K] · Answer 1 · 2026-03-29T10:46:47+03:00

Answer: C. conservation of number. Explanation: Conservation of number illustrates that the count of an object stays consistent irrespective of its physical rearrangement. For instance, the English alphabet consists of 26 letters: A, B, C...Z. Even if I shuffle these letters out of their usual order, the total still remains at 26. This serves as a clear example of the conservation of number.

Anni [1.5K] · Answer 2 · 2026-03-29T10:47:26+03:00

ANSWER: (c) CONSERVATION OF NUMBER EXPLANATION: The concept of conservation in psychology pertains to an individual’s capability to recognize that despite alterations in an entity's appearance, the quantity remains unchanged. Piaget's cognitive development theory states that children obtain conservation skills (relating to number, area, volume, and orientation) between the ages of seven and eleven. Thus, the experiment is designed to test the conservation of number, which is characterized by the comprehension that redistributing two entities (two identical rows) does not alter the total count.