A researcher wants to find out how children’s moral developm…
A researcher wants to find out how children’s moral development, their sense of right and wrong, changes from ages 3 to 5. He looks simultaneously at three groups of children: 3-year-olds, 4-year-olds, and 5-year-olds, presenting each group with the same problem and then seeing how they respond to it and explain their choices. Such an approach typifies _____________________________.
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