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(Devry) HIM325 Healthcare Statistics & Research - Latest Final Exam Review Q & S 2024 $17.99   Add to cart

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(Devry) HIM325 Healthcare Statistics & Research - Latest Final Exam Review Q & S 2024

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  • November 6, 2024
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  • 2024/2025
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HIM325




Healthcare Statistics & Research




LATEST FINAL EXAM REVIEW
Q&S




©2024/2025

,1. Which statistical test is appropriate for comparing the means of
three or more independent groups?
a) T-test
b) Chi-square test
c) ANOVA
d) Paired T-test


Correct Answer: c) ANOVA
Rationale: ANOVA (Analysis of Variance) is used to compare
the means of three or more groups to establish if at least one
sample mean is significantly different from the others.


2. What methodology is commonly used to handle missing data in
healthcare research to avoid bias?
a) Deletion
b) Multiple imputation
c) Case substitution
d) Mean substitution


Correct Answer: b) Multiple imputation
Rationale: Multiple imputation is a statistical technique that fills
in missing data with plausible values and is considered a robust
method for handling missing data and reducing bias.
©2024/2025

, 3. In logistic regression, what does the odds ratio represent?
a) The probability of an event happening
b) The comparison of two probabilities
c) The odds of an event occurring given the presence of a
predictor
d) The standard deviation of the outcome variable


Correct Answer: c) The odds of an event occurring given the
presence of a predictor
Rationale: The odds ratio in logistic regression quantifies the
relationship between a predictor variable and the outcome,
showing how the odds of the outcome change with one unit change
in the predictor.


4. Which type of bias occurs when there is a systematic error in the
measurement of exposure or outcome data?
a) Selection bias
b) Information bias
c) Confounding
d) Sampling bias


Correct Answer: b) Information bias
©2024/2025

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