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Introduction To Biostatistics

195 questions found

Practice Questions

10. In a clinical context, a new diagnostic test for diabetes yields a continuous measurement (e.g., blood glucose level). To determine the optimal cutoff for diagnosing diabetes, a researcher needs to understand the distribution of these values. Which technical distribution is often assumed for such measurements in large populations?

A. Binomial distribution.
B. Poisson distribution.
C. Normal distribution. ✓
D. Exponential distribution.
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nmdcat.online BS Nursing
Jun 6, 2026

12. A biostatistician receives a dataset with patient satisfaction scores categorized as “Very Satisfied,” “Satisfied,” “Neutral,” “Dissatisfied,” “Very Dissatisfied.” What technical type of data is this?

A. Nominal.
B. Ordinal. ✓
C. Interval.
D. Ratio.
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nmdcat.online BS Nursing
Jun 6, 2026

13. A public health situational study aims to estimate the proportion of adults in a city who smoke. A random sample of 500 adults is surveyed. The collected data represents a:

A. Population.
B. Parameter.
C. Sample. ✓
D. Statistic.
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nmdcat.online BS Nursing
Jun 6, 2026

14. A clinical research team wants to compare the effectiveness of three different physical therapy interventions on improving knee range of motion (a continuous variable). Which technical statistical test is most appropriate?

A. Independent samples t-test.
B. Paired t-test.
C. Chi-square test.
D. One-way ANOVA. ✓
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nmdcat.online BS Nursing
Jun 6, 2026

15. A medicinal study finds a strong correlation between increasing drug dose and decreasing tumor size. However, the study design was purely observational. What is the critical biostatistical caution when interpreting this finding?

A. Correlation implies causation.
B. The correlation is likely due to chance.
C. Correlation does not imply causation; confounding or other factors may be at play. ✓
D. The study was poorly designed.
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nmdcat.online BS Nursing
Jun 6, 2026
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