A researcher reports the ages of 120 participants using the median and interquartile range because several participants have extremely high ages. Why is this summary appropriate?
Correct answer: A. The median is less affected by extreme values.
- A. The median is less affected by extreme values.
- B. The median proves that the sample is representative.
- C. The interquartile range removes missing data.
- D. The interquartile range establishes causation.
Explanation
The median and interquartile range are useful for skewed data because they are less influenced by unusually high or low observations. They describe the distribution but do not prove representativeness or causation.
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Nursing research covers problem identification, literature review, research questions, hypotheses, variables, quantitative and qualitative approaches, study designs, sampling and data collection. It also addresses validity, reliability, research ethics, data interpretation and evidence-based practice, including how research findings can guide nursing decisions and care.
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