How Can Applying the Insights from the Experiment Ideal and the Scientific

Multiple Choice

How can applying the insights from the experiment ideal and the scientific method approach facilitate better analysis with nonexperimental data?

A) Sharpen attention towards the variation in treatment that is most appropriate for measuring treatment effects
B) Illustrates the role of measurement error
C) Illustrates the role of sample size in appealing to the use of the normal distribution for probability assessments
D) None of the answers is correct.