mu_from_ES | R Documentation |

Convenience function to calculate the means for between designs with one factor (One-Way ANOVA). Can be used to determine the means that should yield a specified effect sizes (expressed in Cohen's f).

mu_from_ES(K, ES)

`K` |
Number of groups (2, 3, or 4) |

`ES` |
Effect size (eta-squared) |

Returns vector of means

Albers, C., & Lakens, D. (2018). When power analyses based on pilot data are biased: Inaccurate effect size estimators and follow-up bias. Journal of Experimental Social Psychology, 74, 187–195. https://doi.org/10.1016/j.jesp.2017.09.004

## Medium effect size (eta-squared), 2 groups ES <- 0.0588 K <- 2 mu_from_ES(K = K, ES = ES)

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