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24 Notes - Experimental Design Testing a new drug Wow Pill...

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Experimental Design Testing a new drug Wow Pill to cure schizophrenia Independent variable Protocol : Just give people a pill to a bunch of schizos and they get better; what’s wrong with this? Failure to use a control group Improvement could be due to Spontaneous remission Suggestion of pill’s effect Getting attention – just attention could change your emotions A change in weather, lighting, etc 1. Define the population of subjects 2. Draw a random sample 3. Divide a sample into experimental group and control group Dependent Variable Independent Experiment before Pill Control Before Placebo Placebo Control for Auto suggestion Hawthorne effect - an increase in motivation just from getting attention - Increased lighting and rest conditions and people took did 2400 relays/week -To make sure it was the lighting and rest periods that were doing this, they decreased lighting and people could do 3,000 relays/week Necessary Controls Keep subjects “blind”
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