confounding variables

Description1.What were the potential confounding variables related to your design?
2.If you were to replicate the study, how could you control for the confounding variables?
3.What were potential methodological (the methods used to collect and analyze the data) concerns?
4.If you were to replicate the study, how could you control for the methodological (the method used to collect and analyze the data) concerns?
5.What did you learn by designing the quantitative mini-study?