Two general principles of perception are shared by all infants: one is dynamic perception and the other is people preference

The research on the effects of alcohol on humans is correlational. However, experimental research exposing animal subjects to alcohol

a. finds no negative or detrimental effects. b. supports the correlational evidence found in humans. c. finds similar results to the human research for some animals, but not for others. d. to date, shows no experimental research done on the effects of alcohol in animals.

Saying a child "has a mind of his own" means

a. the child behaves and is obedient. b. the child is stubborn. c. the parents are unhappy with their child's independence. d. the child may have a developmental problem.