EEGs have been used to diagnose epilepsy and study sleep

123) Much of what we believe about the biopsychology of drug addiction is based on the study of drug self-administration in laboratory animals, but there is a major concern:

A) Most of the research has been based on opiate self-administration. B) Most of the research has been based on stimulant self-administration. C) The housing and testing conditions have been unnatural. D) both A and C E) both B and C

Which condition is not specified in Holland's model of persuasion as necessary for persuasion to occur?

a. Message recipients must elaborate on the message. b. Message recipients must attend to the message. c. Message recipients must comprehend the message. d. Message recipients must be motivated to accept the message.