An experimenter lines up pairs of checkers into two identical rows. Then the experimenter elongated one of the rows by spacing the checkers farther apart. This is a classic test of__________.
Social Studies · College · Thu Feb 04 2021
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This is a classic test of conservation of number, a concept developed by the Swiss psychologist Jean Piaget. The test assesses a child's ability to determine that the number of objects remains the same even when their arrangement or appearance changes, provided that nothing has been added or taken away. When a child is shown the two rows of checkers that have the same number of checkers and are then shown the same rows with one row spread out, they are being tested to see if they understand that both rows still contain the same number of checkers despite looking different.