This concept means biological factors

Which of the following is a condition that encourages attitude change according to research by Aronson and others?

a. Facts and statistics are used to back up the message. b. There are no conclusions drawn by the speakers. c. The message is repeated only once to prevent becoming irritating. d. The message does not create fear or anxiety in the listener.

_______ _______ developed a theory of moral reasoning

Fill in the blank(s) with correct word