A study reports a p-value of 0.03 using a preselected significance level of 0.05. What is the best interpretation?
Correct answer: A. The null hypothesis is rejected at this level
- A. The null hypothesis is rejected at this level
- B. The intervention is proven safe for every patient
- C. There is a 3 percent chance the hypothesis is true
- D. The result must be clinically important
Explanation
Because 0.03 is less than 0.05, the result is statistically significant at the stated level and the null hypothesis is rejected. Statistical significance does not by itself prove universal safety or clinical importance, and the p-value is not the probability that the hypothesis is true.
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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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