STS 110 Lecture Notes - Lecture 3: Confounding, Shoe Size
6 Feb 2018
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A researcher is studying subjects but does not manipulate the outcome. Ex: o cer hiding behind a bush and counting how many people run a red light. Ex: interviewing patients in a retirement home about their vitamin intake. Researchers will assign a treatment and measure the outcome. There could be a control group ( get no treatment or placebo) Ex: putting a bandaid on a cut . A patient shows improvement after taking the placebo. Single blinding: the subject does not know if they are getting the placebo or not. Double blinding: both the researcher and the subject do not know if they are getting the placebo. Researcher uses language/ body language that could reveal to the subject whether they have received the placebo or not. Double blinding can reduce the experimenter e ect. Ex: being a night owl causes yeast infections. Missing link is poor hygiene, poor diet, and lack of sleep.
