Which of the following are ways of avoiding the ethical problem of withholding treatment from a control group without imperiling the scientific integrity of the research?
a. Give the control group a treatment that is known to be effective, and delaygiving the new treatment to the control group for a period that will allowappropriate comparisons to be made
b. Delay giving the treatment to the control group for a period that will allowappropriate comparisons to be made.
c. Give the treatment to the control group and then withdraw the treatment.
d. Give the control group a treatment that is known to be effective.
a
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