10 Questions
What does PICOTS/PECOTS stand for in epidemiology?
Population, Intervention, Control, Outcome, Time, Setting
When using direct standardization in epidemiology, what is the purpose of adjusting observed population mortality rates to that of a standard, reference population?
To compare mortality rates between populations with different age distributions
In direct standardization, what is the purpose of using a third country to calculate the percentage of each age group out of the total population?
To calculate the weight for adjusting mortality rates
What is the role of the 'Comparator' element in a PICOTS/PECOTS question?
To compare the intervention to something else
What is the primary purpose of the 'Time' element in a PICOTS/PECOTS question?
To determine the length of the study
What is the primary concern of selection bias in a study?
Representativeness of study results to the study population
How can selection bias be minimized in a study?
Choose random samples and consecutive samples
What is the primary concern of information bias in a study?
Incomplete or inaccurate data collection
What role can selection bias play in case-control studies?
Influencing the detection of cases based on exposure
What is the primary concern of confounding bias in a study?
Results being influenced by a factor associated with both exposure and outcome
Test your knowledge of epidemiology and research question formulation with this quiz. Learn the definition of epidemiology and understand how to craft a PICOTS/PECOTS question, covering elements such as population, intervention, comparator, outcomes, timing, and setting.
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