A psychologist is investigating the study behavior of college students. She writes a list that includes the following: underlining versus not underlining, studying in a quiet room versus studying in a noisy room
and studying alone versus studying with a group of students. Which term best describes the items on this list?
a) control variables
b) dependent variables
c) extraneous variables
d) independent variables
ANS: d
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In Milgram's study, percent of the original subjects obeyed every order. In subsequent studies, when the subjects instructed others to administer the shock, the obedience rate
a. 25; rose to about half b. 33; rose to more than half c. 65; rose to more than 90% d. 33; fell to about 20% e. 25; fell to about 10%
The size of the sample is signified by which symbol?
A) n B) N C) s D) S
What are some ways that accidents can be prevented?
a. Careful supervision and close monitoring b. Car seats and bike helmets c. Fencing around pools d. All of the above
Which professions have the lowest percentage of women?
A. Physicians and surgeons B. Architects and engineers C. Electricians and plumbers D. Chefs and head cooks