What is the visual cliff and what typically occurs when babies are measured using it?
What will be an ideal response?
It is a special table designed to measure visual perception in infants. Babies typically will stop at or before the "drop
off" because they notice the change in depth. Infants with little crawling experience typically continue to crawl and
do not perceive "depth-at-an-edge."
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A student has just made a pendulum with a small stone and a string. She is trying to figure out whether it is the length of string, the weight of the stone at the end of it,
or both that determine how far the pendulum will swing. In order to be able to solve this problem, the student would have to have reached the ______ stage of cognitive development in Piaget's theory. a. sensory-motor c. concrete-operational b. preoperational d. formal-operational
Primarily because of very low abuse potential, which of the following hallucinogens is not a schedule controlled substance?
a. LSD b. mescaline c. anticholinergics d. psilocybin