The system of rules that governs how we combine words to form phrases and sentences is called __________

If you were one of the Stanford students who participated in the classic research on cognitive dissonance conducted by Festinger and Carlsmith, you would be asked to

a. present electric shock to another person. b. compare the length of lines to a standard line. c. tell others that working on monotonous tasks was enjoyable. d. observe others communicating in chat rooms.

Amphetamines are __________

a. barbiturates b. stimulants c. hallucinogens d. opiates