A researcher wanting to explore the lives of women newly diagnosed with breast cancer obtains a random sample of the population. What part of the study will be strengthened because of the random sample?
a. Feasibility
b. Reliability
c. Statistical power
d. Validity
ANS: D
Random samples increase the validity of a study.
Feasibility refers to the likelihood that the study will be conducted to its conclusion.
The reliability is the extent to which an instrument will obtain consistent findings.
The power of a study is the probability that a difference that does exist will be detected. It is influenced by sample size, but not necessarily how the sample was created.
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Which of the following are functions of the spleen in a healthy adult? (Select all that apply.)
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