Ch6Def - completely randomized all the experimental...

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STAT 110 Chapter 6 Definitions single blind – an experiment is single blind if the subjects are unaware of the exact treatment being imposed on them Æ controls for subject bias double blind – an experiment is double blind if the subjects and the experimenter are unaware of the exact treatment being imposed Æ controls for subject and experimenter bias nonadherers – subjects who participate but do not follow the experimental treatment refusals – some subjects that we want in our study may refuse to participate dropouts – subjects may start in the study and later dropout Æ especially true for experiments that last over an extended period of time
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Unformatted text preview: completely randomized all the experimental subjects are allocated at random among all the treatments matched pairs design - Subjects are matched to form pairs, or each subject receives both treatments. Randomization occurs within each pair. block a group of experimental subjects that are known before the experiment to be similar in some way that is expected to affect the response to the treatments block design the random assignment of subjects to treatments is carried out separately within each block...
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Ch6Def - completely randomized all the experimental...

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