Calculating the Sample Size When Testing r

When you come across a study that uses the seven-step approach to hypothesis testing, give the researcher some bonus points. When you come a study in which the appropriate sample size was determined prior to the collection of any data, give the researcher even more bonus points for taking the time to set up the study with sensitivity to both Type I and Type II errors. And when you come across a study in which there is no mention whatsoever of effect size (of either type), award yourself some bonus points for detecting a study that could have been conducted better than it was.


(From Chapter 9 in the 6th edition, p. 199)

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Schuyler W. Huck
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