Read and summarize each of the readings listed below, separately, in at least 3-4 sentences:
Explain how you will select treatment and control groups if the design is a field experiment. Explain what techniques you might use to address selection
Explain how you will select treatment and control groups if the design is a field experiment. Explain what techniques you might use to address selection bias if the design is a quasi experiment. Explain how you might address internal validity if the design is a nonexperimental design.