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Chapter 8: Hypothesis Testing Goal is to determine whether a treatment has…
Chapter 8: Hypothesis Testing Goal is to determine whether a treatment has an effect on the population using sample data to make inferences about a population (inferential process)
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Power and Effect Size
Statistical Power
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Increase power by: larger sample size, larger effect size, larger alpha level (a) or using a one-tailed test
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Type I and Type II Errors **Lowering a -> Lowers Type 1 error; but increases the risk of Type II error
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