Ulcers have historically been viewed as being psychosomatic illness. However, recent research indicates that __________, not stress or diet is the major cause of peptic ulcers

Which memory system is the one that is a working, active system that processes the information within it?

a. long-term memory b. working memory c. secondary memory d. cognitive memory e. phenomenological memory

According to the text, case studies

a. lack formal control groups. b. produce results that generalize better than survey results. c. are the most scientific of the research methods. d. are generally superior to experiments.