Caffeine, nicotine, amphetamines, and cocaine are members of a class of drugs known as ________

When a person holds a belief and performs an act that is inconsistent with that belief, he or she is likely to feel _________

FIll in the blank with correct word.

When you put money in the candy machine, you expect to be reinforced on a _____ schedule.

A) variable-ratio B) fixed-interval C) continuous reinforcement D) intermittent reinforcement