We're glad you stopped by Which of the following statements is untrue about case control studies A Exposure to a factor is determined retrospectively B Exposure levels may be difficult. This page is here to walk you through essential details with clear and straightforward explanations. Our goal is to make your learning experience easy, enriching, and enjoyable. Start exploring and find the information you need!
Answer :
Final answer:
The untrue statement about case-control studies among the options given is 'They are a type of option(c).longitudinal design.' Case-control studies are typically retrospective and compare two distinct groups at a singular point in time, rather than following a single group over time as longitudinal studies do.
Explanation:
Among the given statements about case-control studies, choice c) They are a type of longitudinal design is untrue. Case-control studies are typically retrospective, meaning they look back at data from the past. This type of study compares a group of individuals with a specific disease (the cases) to a similar group of individuals without the disease (the controls).
An essential characteristic of case-control studies is that they can examine multiple potential exposures (e), which is true. However, precise quantification of exposure levels (b) may be challenging due to the retrospective nature of these studies. The measure of association in case-control studies is indeed the odds ratio (d), calculated by comparing the odds of exposure in the cases to the odds of exposure in the controls.
A longitudinal study, on the other hand, follows a group of individuals over time to observe changes or outcomes. As such, case-control studies are not a type of longitudinal design because they don't monitor changes over time in a single group; they look at two distinct groups (those with the disease and those without) at a specific point in time.
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