A child is shown two identical balls of clay, sees one of them rolled into a rod shape, and is then asked which ball contains more clay. This child is being tested for an understanding of ________?

Studies of monkeys raised with artificial mothers suggest that mother-infant emotional bonds result primarily from mother providing infants with:

The area of the brain which undergoes the greatest change from puberty into young adulthood is the:

The insanity defense dates back to the English courts, where it was originally held that to be responsible for an act, the defendant must:

In skin the receptors are concerned with which of the following senses:

Gestaltists refer to the fact that we perceive smooth flowing forms more readily than discrete forms as ________?