An investigator wants to assess whether the use of a specific medication given to infants born

An investigator wants to assess whether the use of a specific medication given to infants born 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 forvarious aspects of devolvement. Identify the type of study proposed , strengths and weaknesses