A researcher tests learning for one group of rats in a cold room and for another group in a warm room. What is the dependent variable in this experiment?
a. The rats' learning performance
b. The experimenter
c. The temperature of the room
d. The size of the room
a
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What is the likelihood that a child born in China will die during the first year as compared to a child born in Italy?
A. Four times more likely B. Four times less likely C. Six times more likely D. Six times less likely
What is the difference between internal and external validity?
A. Internal validity refers to study design; external validity refers to generalizability. B. Internal validity refers to participant motivation; external validity refers to experiment conditions. C. Internal validity refers to researcher methodology; external validity refers to peer critique. D. Internal validity refers to ethics concerns raised by study participants; external validity refers to ethics concerns raised by an IRB.
A researcher designs an experiment in which he is investigating the effects of providing counselling versus medication for smoking cessation. In this study,
A. counselling is the independent variable and medication is the dependent variable. B. medication is the independent variable and counselling is the dependent variable. C. the treatment group is the independent variable and smoking status is the dependent variable. D. smoking status is the independent variable and treatment group is the dependent variable.
Which of the following has been one of the most effective techniques to promote morale in combat
soldiers? A) Removing them from duty after a combat experience. B) Long term counseling. C) Providing access to the Internet. D) Keeping them away from contact with anyone but other combat soldiers for a significant amount of time after a combat experience.