(WGU C431) HCM 3410 Healthcare Research & Statistics - FA Pre Test Guide .(WGU C431) HCM 3410 Healthcare Research & Statistics - FA Pre Test Guide .(WGU C431) HCM 3410 Healthcare Research & Statistics - FA Pre Test Guide .(WGU C431) HCM 3410 Healthcare Research & Statistics - FA Pre Test Guide .
,1. What is the primary purpose of using regression analysis in
healthcare research?
A. To determine the cause of diseases
B. To predict healthcare trends
C. To analyze patient satisfaction
D. To conduct clinical trials
Correct Answer: B. To predict healthcare trends
Rationale: Regression analysis helps in identifying
relationships between variables and predicting future trends.
2. Which type of bias occurs when some members of the intended
population are less likely to be included in the sample?
A. Information Bias
B. Selection Bias
C. Recall Bias
D. Confirmation Bias
Correct Answer: B. Selection Bias
Rationale: Selection bias occurs when the sample is not
representative of the population.
, A. There is a 3% chance the null hypothesis is true
B. There is a 97% chance the null hypothesis is true
C. There is a 97% chance that the results are due to random
chance
D. There is a 3% chance that the results are due to random
chance
Correct Answer: D. There is a 3% chance that the results are
due to random chance
Rationale: A p-value indicates the probability that the
observed results are due to random chance.
4. Which of the following is not a measure of central tendency?
A. Mean
B. Median
C. Mode
D. Range
Correct Answer: D. Range
Rationale: Range is a measure of spread, not central
tendency.
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