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lesson_16_powerEffectsize.Rmd
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lesson_16_powerEffectsize.Rmd
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---
title: 'Lesson 16. Power, Sample Size, Effect Size'
---
## Lesson 16. Power, Sample Size, Effect Size
Discussion of Power, Sample Size and Effect Size - "Good, Fast, Cheap - pick 2"
We will be discussing the information in these slides - feel free to download my files:
* PPT Slides - 1 [https://github.com/melindahiggins2000/N736/raw/master/HigginsLecture_Power_30Jan2013.ppt](https://github.com/melindahiggins2000/N736/raw/master/HigginsLecture_Power_30Jan2013.ppt)
* PPT Slides - 2 [https://github.com/melindahiggins2000/N736/raw/master/ehcnir_MHiggins_final.pptx](https://github.com/melindahiggins2000/N736/raw/master/ehcnir_MHiggins_final.pptx)
* Converting Effect Sizes EXCEL file [https://github.com/melindahiggins2000/N736/raw/master/Copy%20of%20Converting%20effect%20sizes%202009-06-25.xls](https://github.com/melindahiggins2000/N736/raw/master/Copy%20of%20Converting%20effect%20sizes%202009-06-25.xls)
* EXCEL File showing n=80-120 for moderate effect sizes regardless of method [https://github.com/melindahiggins2000/N736/raw/master/EffectSizes_Power_SampleSizes_Higgins_09172013.xlsx](https://github.com/melindahiggins2000/N736/raw/master/EffectSizes_Power_SampleSizes_Higgins_09172013.xlsx)
* Post Hoc Power Paper [https://github.com/melindahiggins2000/N736/raw/master/LevinePostHocPower-1.pdf](https://github.com/melindahiggins2000/N736/raw/master/LevinePostHocPower-1.pdf)
* The Abuse of Power Paper [https://github.com/melindahiggins2000/N736/raw/master/TheAbuseOfPower_AmStat_2001.pdf](https://github.com/melindahiggins2000/N736/raw/master/TheAbuseOfPower_AmStat_2001.pdf)
* OPTIONAL Download **G*Power** Power, Sample Size Software (yes, it is FREE) [http://www.gpower.hhu.de/](http://www.gpower.hhu.de/) - scroll about halfway down to download the installer for either Windows or Mac operating systems.