Please underline the correct answer. Q1. When stratum-specific odds ratios are dissimilar to each other and fail y similar

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Please underline the correct answer. Q1. When stratum-specific odds ratios are dissimilar to each other and fail y similar

Please underline the correct answer.
Q1. When stratum-specific odds ratios are dissimilar to each other and fail y similar to the crude estimate, we can conclude that the association under investigation is confounded.
A. TrueB. FalseC. Neither A nor B
Q2. Which of the following study designs is most efficient in studying a rare exposure?
A. Case controlB. Cross-sectionalC. CohortD. None of the above
Q3. What is the most appropriate statistic for testing the association between categorical independent andquantitative dependent variables?
A. Independent sample t-testB. Simple linear regressionC. Chi-square test of associationD. Paired sample t-test
Q4. In an ecological study, both hypothesis and intervention are tested.
A. TrueB. FalseC. None of the above
Q5. Effect modification distorts research findings instead of refining them.
A. TrueB. FalseC. None of the above
Q6. The regression slope estimates the average increase in the dependent variable for each unit increase in the independent variable.
A. TrueB. FalseC. None of the above
Q7. One of advantages of multiple regression is that it allows us to examine the effect of an exposure variable on the outcome variable while adjusting for no other variable in the model.
A. TrueB. FalseC. None of the above
Q8. The particular method of analysis in a research study depends on:
A. Research questionB. Study designC. Level of measurementD. All of the aboveE. A and B only
Q9. Reviewing relevant literature exposes the researcher to specific designs used by previous researchers.
A. TrueB. FalseC. None of the above
Q10. Ecological fallacy occurs when a researcher interprets the results of group-level data to the individual level.
A. TrueB. FalseC. None of the above
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