File: Powerpoint For Students 68400 | 4 Designsofexeriments
4 ways to collect data observational study observe and measure specific characteristics but we don t attempt to modify the subject being studied experiment a treatment is applied to observe ...
Filetype Power Point PPTX | Posted on 29 Aug 2022 | 4 years ago
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...Ways to collect data observational study observe and measure specific characteristics but we don t attempt modify the subject being studied experiment a treatment is applied its effect on subjects simulation mathematical or physical model used reproduce situation survey investigation of population examples changing flight patterns number airplane accidents eating oatmeal lowering blood pressure showing how fourth grade students solve puzzle us residents approval rating president basic steps designing experiments identify objective sample use random procedure that avoids bias analyze form conclusions control treatments placebo faux looks like real i e sugar pill occurs when an untreated incorrectly believes he she receiving reports improvement in symptoms continued blinding technique which doesn know whether this so can determine if significantly greater than single blind researcher knew received did not double neither nor who...