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13 Cards in this Set
- Front
- Back
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the entire group of individuals abt which we want info
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population
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subset of individual from which info is collected
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sample
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in repeated samples, the sample statistic consistently mises the population parameter in the same direction
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bias
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confidence intervals
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1/sqrtn
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margin of error
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in 95% of surveys, the sample pop. will not differ from the pop. prop. by any more than the margin of error (95% confidence)
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what happens to the MOE with larger samples
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the moe will be smaller
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what happens to to the moe with smaller samples
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moe will be larger
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randomized comparative experiment
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one tht compares to treatments
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confounding variables
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2 variables tht cannot be distingushed from each other
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lurking variables
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has vital effects on relation of variables
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neither the subjects or the faculty/staff known which treatment each subject is given
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double-blind experiments
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why is it not double-blind
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if you know what treatment you're getting
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what are the basic data ethics?
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the review board-to protect the subjects from harm
informed consent confidential |
