Research Methods & Evidence-Based Practice Flashcards
7 cards from real Low Risk Neonatal Nurse Exam practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Research Methods & Evidence-Based Practice flashcards as text
A study reports p = 0.03 with alpha set at 0.05. What is the correct interpretation?
Answer: The null hypothesis is rejected
Because p is less than alpha, the result is statistically significant and the null hypothesis is rejected.
A relative risk of 0.60 has a 95% CI of 0.40–0.90. What does this indicate?
Answer: A significant reduction in risk
The interval excludes 1.0 and lies below it, indicating a statistically significant risk reduction.
Event rate is 20% in the control group and 10% in the treatment group. What is the number needed to treat?
Answer: 10
NNT is 1 divided by the absolute risk reduction (0.10), which equals 10.
A screening test has high sensitivity. What does this mean?
Answer: It correctly identifies most infants who have the condition
Sensitivity is the proportion of true cases that the test detects.
A small neonatal trial finds no significant difference, but the sample was too small to detect one. Which error is most likely?
Answer: Type II error
A Type II error is failing to reject a false null hypothesis, often due to inadequate power.
An odds ratio of 1.0 means which of the following?
Answer: No association between exposure and outcome
An odds ratio of 1 indicates equal odds in both groups, so no association.
Which measure of central tendency is best for NICU length-of-stay data that are strongly right-skewed?
Answer: Median
The median is resistant to extreme values, so it better represents skewed data.
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