Why is it optimal for a researcher to ensure that only one variable changes throughout an experiment?
a. Because more than one variable creates a statistical nightmare that is exceedingly difficult to interpret.
b. Because multiple variables will require more research participants, and thus more funding.
c. Because more than one variable changing can influence our results and lead to incorrect conclusions.
d. Because the definition of a true experiment is that only one variable should change at a time; otherwise, it is not an experiment.
Answer: C
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Dr. Danzig is lecturing on widowhood. Which is NOT a statement she should include?
A) Friends, rather than family members, are most helpful in determining how people adjust. B) There is a much higher risk of men dying after losing a spouse, but only if the death of the spouse was sudden. C) Widowed people just feel incredibly depressed during the first year of bereavement. D) Widowhood causes fluctuating emotions.
The two types of antipsychotic drugs that are available are
a. neurogenic and neurotoxic b. first-generation and second-generation c. excitatory and inhibitory d. typical and atypical