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For this question, we need to determine which type of research design is best used to evaluate the therapeutic effects of treatments.
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So in order to answer this question, we need to make sure we understand the research designs presented in the answer choices.
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Starting with cross -sectional studies.
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Cross -sectional studies are studies that involve data from a population at a single point in time.
00:25
This type of study is not going to be best when trying to evaluate the therapeutic effects.
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Of treatments.
00:32
Because in order to determine the therapeutic effects of treatments, we need to understand how the treatment affects individuals over an extended period of time.
00:41
So a cross -sectional study would not be appropriate.
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Next, we have case studies.
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A case study refers to an in -depth examination of a single individual group or event.
00:54
Since this type of research design is focused more on an individual or a single group, this is not going to be best for evaluating the therapeutic effects of treatments, because we would want to know how the treatment affects multiple different groups of people...