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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This note was uploaded on 02/10/2011 for the course STAT 110 taught by Professor Johnson during the Spring '07 term at South Carolina.

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Ch6Def - completely randomized – all the experimental...

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