What is one major weakness of a laboratory-based study?
a. The costs are typically prohibitive.
b. Findings are difficult to replicate.
c. Results from animal testing cannot be applied to human beings.
d. Experimental variables cannot be easily controlled.
e. Causality cannot be inferred.
Question 2
How does a double-blind experiment work?
a. Both subject groups take turns getting each treatment.
b. Neither subjects nor researchers know which subjects are in the control or experimental group
c. Neither group of subjects knows whether they are in the control or experimental group, but the researchers do know.
d. Both subject groups know whether they are in the control or experimental group, but the researchers do not know.
e. Neither the subjects nor the persons having contact with the subjects know the true purpose of the experiment.
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