Maria participates in an experiment where the experimenter shows her two identical balls of clay and watches as she rolls one ball of clay into a long hot-dog shape and leaves the other ball of clay in the original round ball. Maria is then asked which piece has more clay. Maria is 9 years of age and knows that the two shapes contain the same amount of clay. What principle does Maria understand?
A) Object typing
B) Object constancy
C) Object identity
D) Object reversibility

Question

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The Answer of Maria participates in an experiment where the experimenter shows her two identical balls of clay and watches as she rolls one ball of clay into a long hot-dog shape and leaves the other ball of clay in the original round ball. Maria is then asked which piece has more clay. Maria is 9 years of age and knows that the two shapes contain the same amount of clay. What principle does Maria understand?
A) Object typing
B) Object constancy
C) Object identity
D) Object reversibility

Maria Participates in an Experiment Where the Experimenter Shows Her