Is it true that every experiment must have a control group that does not experience the independent variable?
a. Yes, a control group that does not experience the independent variable is necessary
b. Only if you want to have a reliable experiment
c. Only if you want to have a valid experiment
d. Control conditions do not always include a level in which the independent variable is absent.
d
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The degree to which a genetic characteristic is manifested by individuals carrying a specific gene is called ____
a. concordance b. discordance c. penetrance d. genetic linkage
When thinking about GREs, applying to graduate school, and studying for mid-terms, Nichole starts to have sweaty palms and a racing heart. It is MOST probable that Nichole is responding to
a. T cells. b. the pressure. c. stressors. d. lymphocytes. e. cytokines.
Which of the following phases does not occur in women?
a. excitement b. plateau c. orgasm d. refractory period
Two Skinner boxes are wired so that a painful electrical shock can be administered through the floor. Box A has a lever that will turn off the shock. Box B has a lever that does nothing. The two boxes are linked so the shock starts at the same time for both, and when the rat in Box A turns off the shock, it turns off for both boxes. Painful shocks are administered dozens of times at random intervals over a several hour trial. Which rat will experience more stress symptoms, and why?
A. The rat in A, because he has to do something to turn off the shock. B. The rat in B, because he is unable to do anything to control the shock. C. Both rats will experience the same symptoms, because both experience the same levels of shock. D. Neither rat will experience stress symptoms, because the shock can be easily turned off.