An investigator wants to assess whether the use of a specific medication given to infants bom prematurely is associated with developmental delay. Fifty infants who were given the medication and fifty comparison infants who were also born prematurely but not given the medication will be selected for the analysis. Each infant will undergo extensive testing at age 2 for various aspects of development. Identify the type of study proposed and indicate its specific strengths and weaknesses.

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3. An investigator wants to assess whether the use of a specific medication given to infants
bom prematurely is associated with developmenmtal delay. Fifty infants who were given
the medication and fifty comparison infants who were also born prematurely but not
given the medication will be selected for the analysis. Each infant will undergo extensive
testing at age 2 for various aspects of development Identify the type of study proposed
and indicate its specific strengths and weaknesses.
4. Is bias or confounding more of an issue in the study described in Problem 3? Give an
example of a potential source of bias and a potential confounding factor.
Transcribed Image Text:3. An investigator wants to assess whether the use of a specific medication given to infants bom prematurely is associated with developmenmtal delay. Fifty infants who were given the medication and fifty comparison infants who were also born prematurely but not given the medication will be selected for the analysis. Each infant will undergo extensive testing at age 2 for various aspects of development Identify the type of study proposed and indicate its specific strengths and weaknesses. 4. Is bias or confounding more of an issue in the study described in Problem 3? Give an example of a potential source of bias and a potential confounding factor.
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