Section 2
Controlled Experiments
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Boundless Statistics
Statistics
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3 concepts
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The Salk Vaccine Field Trial
The Salk polio vaccine field trial incorporated a double blind placebo control methodolgy to determine the effectiveness of the vaccine.
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The Portacaval Shunt
Numerous studies have been conducted to examine the value of the portacaval shunt procedure, many using randomized controls.
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Statistical Controls
A scientific control is an observation designed to minimize the effects of variables other than the single independent variable.