In the "Visual Cliff" Task, Babies Are Placed on the Shallow

question 21

Multiple Choice

In the "visual cliff" task, babies are placed on the shallow side of a table covered in clear glass, where the solid floor is immediately beneath the glass on one side, then drops sharply a few feet on the other. The mother stands beyond the deep side of the table, facing the baby and either smiling or looking frightened. At what age do babies typically begin responding to the mother's expression when deciding whether to cross the "cliff" or not?

• A) 6 months
• B) 9 months
• C) 12 months
• D) 15 months

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