Description Usage Arguments Value References Examples
Compute the statistical power of the LANCOVA test.
1 | pwr.lancova(k, n, r_sqrd, rho_sqrd, alpha = 0.05)
|
k |
the number of groups. |
n |
the number of observations per group. |
r_sqrd |
the expected explained variance (on the logged scale) |
rho_sqrd |
the pretest-posttest correlation |
alpha |
the significance level (default=.05) |
power |
the statistical power of test |
Cohen, J. (1988). Statistical power analysis for the behavioral sciences (2nd ed.). Hillsdale,NJ: Lawrence Erlbaum.
1 | pwr.lancova(3,40,.1,.4,.05)
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