A nurse wants to study whether a structured discharge teaching session reduces medication errors among adults with heart failure. Which variable is the independent variable?
Correct answer: A. The structured discharge teaching session
- A. The structured discharge teaching session
- B. The number of medication errors
- C. The diagnosis of heart failure
- D. The participant's age
Explanation
The independent variable is the factor deliberately introduced or changed by the researcher. The number of medication errors is the dependent outcome being measured, while diagnosis and age may be participant characteristics or control variables.
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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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