A researcher wishes to conduct a survey of caregivers of Alzheimer's disease patients in the United States regarding their attitudes toward their role and the difficulties they face
What would be the best way to select the caregivers to study? Explain what a researcher would do to a person who is unfamiliar with research methods or statistics. Why might it be difficult to gather a truly random sample in this case?
What will be an ideal response?
Discussion of random and haphazard sampling. Because truly random sampling will be difficult in this case, the research may opt for haphazard sampling in which individuals who are easily available or are convenient to study are selected, perhaps nearby the researcher's university or medical center. Once the study has begun, the researchers need to be alert for any ways in which this sample of caregivers may be systematically different from the actual population. Specific answers may vary. Reasons why it may be impractical or impossible to study a truly random sample? One problem is that we will not have a complete list of the full population. Another problem is that not everyone the researcher approaches will agree to participate (e.g., many will be too busy caring for their loved one). Yet another problem is the cost and difficulty of tracking down caregivers who live in remote
places.
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