​Lucille is being tested to determine her ability to disting…

​Lucille is being tested to determine her ability to distinguish what she thinks from what she sees. She is shown an adult reaching for a ball that is in a basket and not in a box, but then watches as the ball is removed from the basket while the adult is not looking. When the adult reaches for the ball again, Lucille expects the adult to reach into the basket. This awareness of the adult’s beliefs about the location of the ball suggests the Lucille is at least ____ years of age.

​Dennis is sitting on a train and is looking at the mountain…

​Dennis is sitting on a train and is looking at the mountains in the distance. He suddenly becomes aware that the trees and signs that are very close to the tracks look as if they are moving by far more rapidly than the mountains that are several miles away. Those mountains look as if they are just crawling by. Dennis is currently using ____ to determine the distance of what he is seeing.

Chucky is a three-year-old who is very easily upset. For the…

Chucky is a three-year-old who is very easily upset. For the most part, he likes to sit and play with building toys for hours at a time. When he goes to new places, he gets angry easily and avoids moving around or interacting with other people. Given this information, how would you expect Chucky to be evaluated on Rothbart’s three dimensions of temperament?

​Marcus wants to know whether or not his daughter, Rebekah,…

​Marcus wants to know whether or not his daughter, Rebekah, can perceive different distances and depths. He wants to fashion a simple experiment to make this conclusion. Based on the work of Gibson and Walk, what sort of contraption could he build to test Rebekah’s depth perception?