Americans who have a high school diploma or GED typically have annual incomes how much greater than those who do not graduate from high school?
a. 18% greater c. 74% greater
b. 42% greater d. 91% greater
D
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Although vasodilating drugs such as papaverine and prostaglandin are effective in producing an erection for patients with erectile dysfunction, many patients discontinue use of the drugs because of a. pain associated with drug administration
b. the fact that these drugs eventually cure the disorder. c. the expense of the drug. d. the fact that the effectiveness of the drug decreases with continued use.
Define internal validity in research design. Describe two threats to the internal validity of a research study. (Note: For each threat, be sure to label it, describe it, and be sure to indicate how it specifically is a threat to the internal validity of the design.)
What will be an ideal response?
If a research study concludes that the less coffee you drink, the less anxiety you experience, the researchers MOST likely used:
A)the experimental method. B)case studies. C)a focus group. D)the correlational method.
The type of job rewards men are typically drawn to are those that ______.
A. have high salaries B. involve creative pursuits C. require surmounting challenges D. involve being productive