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18 Cards in this Set
- Front
- Back
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All subjects of interest
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Population
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the subset of the population for whom the study collects data
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Sample
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Measures the outcome of the interest
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response variable
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Merely observes rather than experiments with the subject
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Observatory Study
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assigns to each subject a treatment
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Experimental Study
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a variable that is not observed but effects the outcome
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Lurking Variable
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Selects a sample of subjects from a population and collects data
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Sample Survey
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Equal chance sample
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Random sample
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occurs from having non random
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Sampling bias
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occurs when some sampled subjects cannot be reached or refuse to participate
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Non response bias
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occurs when the subject gives an incorrect response
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Response bias
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second group using a placebo treatment
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control group
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When subject and person conducting experiment know the treatment
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double blind
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Dividing larges populations into smaller ones
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Clusters
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divides the population into separate groups called strata then selects a simple random sample from each stratum
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Stratified random sample
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looking back at studies
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retrospective
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looking forward to studies
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prospective
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retrospective observational study in which subjects have a response outcome of interest
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Case-control study
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