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Carolyn Rockafellow
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There are so many other factors that make be unknown in the case you are referring to of student test scores. What is the student's socioeconomic level? Did they eat that day? We want simple answers and simple correlations to complex problems. Good medical and drug studies factor in many variables, don't they? You want a group of people to study that are age 40-45, smokers, BMI: 30+ , etc. to trial a new BP
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Aug 5, 2013