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Sauce1387 Sauce1387
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6 years ago
Twenty-month-old Hannah realizes that her mother still exists even when Hannah cannot see her. What cognitive achievement has Hannah mastered?
 
  a. egocentrism
  b. object permanence c. conservation
  d. animistic thinking e. centration
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603nurbk603nurbk
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4 years ago
Thank you for the help!
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