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STAT110

Lecture #11 - 9/22

QuestionAnswer
subjects are unaware of exact treatment being imposed on them single blind
subjects and the experimenter are unaware of the exact treatment being imposed double blind
subjects who participate but do not follow the experimental treatment nonadherers
some subjects that we want in our study may refuse to participate refusals
subjects may start in the study and the later dropout; especially true for experiments that last over an extended period of time dropouts
all experimental subjects are allocated at random among all the treatments; break everyone everyone into groups randomly completely randomized
subjects matched to form pairs, or each subject receives both treatments. not completely random, reduces variation, smaller MOE, more statistical significance matched pairs design
group of experimental subjects that are known before the experiment to be similar in some way that is expected to to affect the response to the treatments block
random assignment of subjects to treatments is carried out separately within each block block design
Created by: ConnorLomis
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