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10 Cards in this Set
- Front
- Back
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Statistical Inference
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Allows one to estimate population characteristics from sample data
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Probability
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Prediction - the likelihood that any one event will occur, given all the possible outcomes
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Sampling Error
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The tendency for sample values to differ from population values, which occurs by chance
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What does a p value of 1.00 mean?
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100% chance an event will occur
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What does a p value of 0.00 mean?
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0% chance an event will occur
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How do we prevent sampling error?
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Have a really big, representative, random sample
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Inclusion Criteria
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- Primary traits/factors of the target population which will qualify someone as a subject
- Limits the number that can be included in a sample - Gets rid of confounding influences |
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Exclusion Criteria
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- Traits/factors which would exclude someone from being a subject
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What are the keys to picking a good sample of the population?
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Balance the homogeneity of the sample with potential generalizability of the findings
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What is standard error?
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Standard error of the mean is the standard deviation of a theoretical sampling distribution of means
The bigger the 'n', the more error is reduced SE = sd/square root of n |
