MCQs

11212 questions found

Practice Questions

126. In clinical practice, a doctor reviews patient data on the number of days they experienced a fever (a count). What technical measure of central tendency would be most appropriate if some patients had very long fevers due to complications?

A. Mean.

B. Median. ✓

C. Mode.

D. Standard deviation.

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nmdcat.online BS Nursing

Jun 6, 2026

125. The interquartile range technically measures the spread of the:

A. Entire dataset.

B. Middle 50% of the data. ✓

C. Top 25% of the data.

D. Bottom 25% of the data.

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nmdcat.online BS Nursing

Jun 6, 2026

123. A medicinal study reports that the incidence of a rare adverse event is 0.001 (or 1 in 1000). Which technical distribution is often used to model rare events occurring in a fixed interval of time or space?

A. Normal distribution.

B. Binomial distribution.

C. Poisson distribution. ✓

D. Exponential distribution.

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nmdcat.online BS Nursing

Jun 6, 2026

122. When a researcher rejects the null hypothesis when it is actually true, this is a:

A. Type II error.

B. Correct decision.

C. Type I error. ✓

D. Power.

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nmdcat.online BS Nursing

Jun 6, 2026

121. A situational public health researcher wants to compare the proportion of unvaccinated children in two different school districts. Which technical statistical test is most appropriate?

A. Independent samples t-test.

B. Paired t-test.

C. Chi-square test of independence. ✓

D. One-way ANOVA.

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nmdcat.online BS Nursing

Jun 6, 2026

120. A technical value that describes a specific characteristic of a population is called a:

A. Statistic.

B. Sample.

C. Parameter. ✓

D. Hypothesis.

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nmdcat.online BS Nursing

Jun 6, 2026

119. A critical situational review of a clinical trial protocol reveals that the primary outcome measure is difficult to assess consistently. What is the urgency for a biostatistician’s intervention?

A. To proceed with the trial as is.

B. To urgently recommend revising or replacing the outcome measure to ensure reliable and valid data collection, crucial for the integrity of the results. ✓

C. To ignore measurement issues.

D. To tell the clinicians to be more careful.

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nmdcat.online BS Nursing

Jun 6, 2026

118. A medicinal study aims to understand the relationship between a patient’s age and the amount of drug metabolized per hour. Which technical regression model would be most appropriate?

A. Logistic regression.

B. Simple linear regression. ✓

C. Poisson regression.

D. Survival regression.

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nmdcat.online BS Nursing

Jun 6, 2026

117. In a clinical study, researchers collect data on patient weight (in kg) and height (in cm). To standardize these measurements for comparison across different studies, they might calculate a patient’s:

A. Mean.

B. Median.

C. Z-score. ✓

D. Mode.

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nmdcat.online BS Nursing

Jun 6, 2026

115. A critical situational decision needs to be made about funding a large-scale randomized controlled trial for a new cancer therapy. Preliminary data shows promising but not statistically significant results, and the biostatistician highlights the preliminary trial’s low power. What is the urgency for further investment?

A. To immediately abandon the therapy.

B. To urgently consider the implications of low power (high risk of Type II error) and the need for a larger, adequately powered trial before discarding a potentially beneficial therapy. ✓

C. To fund a smaller, less expensive trial.

D. To rely solely on the current non-significant p-value.

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nmdcat.online BS Nursing

Jun 6, 2026