C813 HIM 4502
Healthcare Statistics & Research
OA READINESS EXAM
Q & S
©2024/2025
1. Which of the following statistical tests is most
appropriate for comparing the means of three or more
independent groups?
- A. ANOVA
- B. Chi-square test
- C. T-test
- D. Logistic regression
- Answer : A. ANOVA
- Rationale : ANOVA (Analysis of Variance) is used to
compare the means of three or more independent groups.
2. What is the primary purpose of a Kaplan-Meier curve in
healthcare statistics?
- A. To analyze categorical data
- B. To estimate survival function
- C. To perform a regression analysis
- D. To assess correlation
- Answer : B. To estimate survival function
- Rationale : Kaplan-Meier curves are used to estimate
the survival function from lifetime data.
3. Which data level must be utilized for calculating a
Pearson correlation coefficient?
- A. Nominal
- B. Ordinal
- C. Interval or ratio
- D. Categorical
- Answer : C. Interval or ratio

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