Description Usage Arguments Examples
View source: R/paugmented function.r
This function calculates paugmented, a statistic discussed in Sagarin, Ambler, and Lee's (2014, Perspectives on Psychological Science, 9, 293-304) "An Ethical Approach to Peeking at Data".
1 | paugmented(ns, plargest, pfinal, pcrit = 0.05, slices = 1000, tails = 2)
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ns |
refers to a vector of sample sizes that indicate the initial number of participants run (N1) followed by the number of participants in the first round of augmentation (N2), the number of participants in the second round of augmentation (N3), etc. |
plargest |
refers to the largest p-value obtained in the initial or augmented subsamples. For example, if the p-value for the initial N1 participants was .15, the p-value for the combined N1+N2 participants was .18, and the p-value for the combined N1+N2+N3 participants was .04, plargest would be .18. |
pfinal |
refers to the p-value obtained in the final sample that includes all participants. |
pcrit |
refers to the value for determining statistical significance (typically .05). |
slices |
refers to the number of slices to divide the probability distribution (higher numbers of slices will make the calculations slower but more precise). |
tails |
refers to whether the tests are one- or two-tailed. |
1 2 | paugmented(c(40,40,20), plargest = .18, pfinal = .04, pcrit = .05, slices = 1000, tails = 2)
paugmented()
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