Description Usage Arguments Value Examples
Calculate the standard deviation required to extrapolate an ICC value to a desired ICC value
1 | extrapRel2sd(icc_extrap, icc_original, sd_original = 1, tau = 1)
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icc_extrap |
Extrapolated ICC value (i.e. desired reliability) |
icc_original |
Original ICC value |
sd_original |
Original SD value. Optional: default is 1. For 1, it will be the proportional increase in the SD. |
tau |
SEM inflation factor. Optional: default is 1. For 1, the SEM is assumed to be constant between studies. |
The standard deviation of a new sample for which the ICC would be equal to the desired value
1 | extrapRel2sd(icc_extrap=0.9, icc_original=0.5)
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