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Practice Questions

113. In a clinical study, researchers are investigating the association between a patient’s education level (e.g., high school, college, graduate) and their adherence to medication (e.g., low, medium, high). Which technical test is most appropriate for these ordinal categorical variables?

A. Independent samples t-test.
B. Paired t-test.
C. Chi-square test.
D. Spearman's rank correlation or a non-parametric test for association. ✓
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Jun 6, 2026

112. The range of values within which a population parameter is estimated to lie, with a certain level of confidence, is called a:

A. Point estimate.
B. P-value.
C. Confidence interval. ✓
D. Standard error.
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mintcream-chough-797767.hostingersite.com BS Nursing
Jun 6, 2026

111. A situational public health researcher is comparing the number of doctor visits per year for two different patient groups. What technical type of data is ‘number of doctor visits’?

A. Nominal.
B. Ordinal.
C. Continuous.
D. Discrete. ✓
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Jun 6, 2026

109. In a clinical study, researchers want to examine the relationship between a patient’s age (continuous) and their response to a drug measured as ‘Improved’ or ‘Not Improved’ (binary). Which technical regression model is most appropriate?

A. Simple linear regression.
B. Logistic regression. ✓
C. Multiple linear regression.
D. Poisson regression.
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mintcream-chough-797767.hostingersite.com BS Nursing
Jun 6, 2026

108. The confidence level technically represents:

A. The probability of making a Type I error.
B. The probability that the confidence interval contains the true population parameter. ✓
C. The power of the test.
D. The p-value.
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mintcream-chough-797767.hostingersite.com BS Nursing
Jun 6, 2026

107. A situational public health researcher is comparing the number of new cases of a disease (a count variable) in different geographic areas. What technical regression model might be useful if the outcome is a count?

A. Linear regression.
B. Logistic regression.
C. Poisson regression. ✓
D. Survival regression.
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mintcream-chough-797767.hostingersite.com BS Nursing
Jun 6, 2026

106. A medicinal study needs to detect a very small effect of a drug. What critical consequence does this have for the required sample size and study power?

A. Small sample size and low power are sufficient.
B. A very large sample size and high power are critically needed. ✓
C. Sample size is irrelevant for small effects.
D. The study should not be conducted.
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Jun 6, 2026

105. In a clinical trial, researchers want to determine if there is a statistically significant difference in mean blood pressure reduction among patients receiving a new drug, a standard drug, or a placebo. 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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mintcream-chough-797767.hostingersite.com BS Nursing
Jun 6, 2026

104. What technical term describes the process of systematically selecting a subset of individuals from a population to represent the whole?

A. Census.
B. Sampling. ✓
C. Parameter estimation.
D. Hypothesis testing.
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mintcream-chough-797767.hostingersite.com BS Nursing
Jun 6, 2026

103. A situational dataset contains the types of cancer diagnosed (e.g., Lung, Breast, Colon). What technical type of data is this?

A. Nominal. ✓
B. Ordinal.
C. Interval.
D. Ratio.
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Jun 6, 2026
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