social psy

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I want to utilize a true experimental design to study the effects of classical music exposure on the cognitive development of newborns.
a- What is an independent variable? b- What is a dependent variable?
c-What is random assignment?
d-Why is random assignment important? e-Assuming you already have an appropriate sample, describe how you would conduct this study. Be sure in your discussion to identify the independent variable and the dependent variable

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