In a normal distribution, what proportion of scores fall within the interval between the

Nicky tends to bite his nails when he becomes nervous because it calms him down. Nicky's behavior is an example of

A) negative reinforcement. B) generalization. C) classical conditioning. D) shaping.

The second functional division of the cerebral cortex involves _____

a) frontal, parietal, temporal, and occipital lobes. b) sensory, motor and association areas. c) hindbrain, midbrain, forebrain. d) hypothalamus, pons, limbic system.