STATS 250 Lecture Notes - Lecture 1: Antibody
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STATS 250 Full Course Notes
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How to split up treatment and control groups: manually make sure balanced based on variables (age/gender, randomize. To balance the two groups in the study. To ensure that the groups in the study are representative of the population. External validity: are the people in your study representative of the: for a vaccine, study doesn"t need to make sure the study is representative of the entire population? population, just make sure that the vaccine works. If we make the study group representative of the entire population, the study would lack power. Power is the ability to actually notice a difference. It would dilute the ability to see if the vaccine is working. Even if the disease is affecting everybody, the vaccine may not work effectively on everybody. Judgement can be used to understand which sections of the population the study can be applied to. Might not always be the exact range depicted in the study, may be applied to more groups.
