KEY FEATURES: Examples for each statistical expression help readers understand complex formulas A chapter on how to use the literature for power analysis walks readers through the process of making good assumptions A chapter on how to write about power analysis offers 7 key points on what needs to be included in a power analysis

Conclusions, Further Reading, and Regression

Conclusions, Further Reading, and Regression

E. C. Hedberg

As an introduction to power analysis, the primary focus of this volume was to outline the interplay between sample design (e.g., sample size) and design parameters (e.g., effect size). A power analysis combines these elements to produce an estimate of the chance of detecting the effect, should it exist. A power analysis can also assume a chance of detecting an effect, and seek to estimate the necessary sample size or minimum detectable effect. The task for this volume was to take one of the more common analyses, the difference in means between two groups, and use it as a case study to explore the ...

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