In the context of a case control study, matching can help you: a. Eliminate random error b. Ensure a large sample size c. Ensure comparability between cases and controls d. Study the factors you match on as potential exposures
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In the context of a case control study, matching can help you:
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- The primary purpose of random assignment in a clinical trial is to help ensure that study subjects are representative of the population help reduce detection bias help ensure the study groups are comparable pre-intervention facilitate adherence to the intervention facilitate measurement of the outcome variable all of the aboveselect which of the three is correctIdentify a particular hazard in your laboratory and then go on the process how to control it starting from risk assessment, then mitigation procedure and performance evaluation
- Which of the following is the most appropriate measure of association used in case-control studies? a. Hazard Ratio b. Odds Ratio c. Prevalence Ratio d. Relative Risk or Risk RatioMatch as appropriate Sensitivity Specificity Predictive value of a positive test or positive predictive value Predictive value of a negative test or negative predictive value A. Ability of a screening test to correctly identify all screened individuals who have the disease or outcome of interest B. Probability of someone screened negative to actually not have the disease or outcome of interest C. Probability of someone screened positive to actually have the disease or outcome of interest D. Ability of a screening test to correctly rule out individuals who actually do not have the disease or outcome of interestComparing exposure histories of people with the disease and people without the disease isthe goal for what type of study design?A. Case seriesB. Case-controlC. CohortD. Experimental
- The total deviation is the: A. Treatment Deviation squared B Treatment Deviation + Unexpected Deviation + Error Deviation C. Treatment Deviation D. Treatment Deviation + Error DeviationEducation is a critical elements of Standard Precautions but training is not required Question options: A) True B) FalsePhysicians practice in a data-intense environment, which provides specific feedback regarding the correctness of their practice. True or false?
- Calculate the risk ratio for each table below. Interpret the risk ratios and indicate which drug is associated with high mortality for the three tables. Calculate RRs to show the relationship between drug use and severity of asthma by creating a 2X2 table from the three tables below. Interpret the OR/RR estimate. Calculate RRs to show the relationship between severity of asthma and death by creating another 2X2 table from the tables below. Interpret the RR estimate. Determine whether there is confounding by severity of asthma in the relationship between drug use and asthma deaths. Use your responses in a, b and c above to answer this question. Draw a pictorial representation of cofounding using the three variables in this particular example. Is there effect modification by severity of asthma?When decision makers are in the process of assessing whether a new policy should be implemented to avoid a certain health risk, besides considering the scientific evidence available, what else should they also take into account?