Final answer:
The visual cliff is used to assess depth perception in infants.
Step-by-step explanation:
The visual cliff is used to assess depth perception in infants. The visual cliff is an experimental apparatus designed to assess depth perception in infants. It typically consists of a sheet of glass placed over a checkered pattern with a "cliff" drop-off on one side. Researchers observe whether infants, often accompanied by a caregiver, show signs of depth perception by hesitating or displaying fear when faced with the apparent drop-off.
This classic experiment, developed by psychologists Eleanor J. Gibson and Richard D. Walk in 1960, has provided insights into the development of depth perception and the role of early visual experiences in shaping cognitive processes in infants.