mdes: Determine the minimum detectable effect size

In michaelasher/glmResources: Functions to help with Psych 610-710 and beyond

Description

Given desired power, degrees of freedom, and alpha, this function returns the minimum detectable effect size as an f-squared statistic.

Usage

mdes(desired_power = 0.8, num_df, den_df, alpha = 0.05)

Arguments

desired_power	Defaults to .8, but this can be changed to test for the minimum detectable effect size for other levels of power.
num_df	Numerator degrees of freedom for the test.
den_df	Denominator degrees of freedom for the test.
alpha	Alpha level for the test.

Value

Returns an f-squared statistic representing the minimum detectable effect size with the desired power, degrees of freedom, and alpha.

michaelasher/glmResources documentation built on Dec. 21, 2021, 5:56 p.m.